The administrative-group command specifies the inclusion or exclusion of links that are part of an administrative group. The administrative group IDs are global and the specification contains lists and ranges of admin groups to include or exclude.

Every chosen link for a dynamic path must be in all of the admin groups specified in the include all range or must be in one of the admin groups specified in the include any range. A chosen link must not be in the exclude range. The administrative group range is 0 to 511.

Administrative groups can be specified using a name as an alias mapped to a numerical value. The mapping can be configured under the global Traffic-Engineering (TE) mode. For more information ,refer to the IS-IS Traffic-Engineering TOI.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

administrative-group [ include any <RANGE>] | [include all <RANGE>] | [exclude <RANGE>] with <RANGE> being: ( <0x0-0xFFFFFFFF> | <0-511> | <0-511>-<0-511> | WORD )

default administrative-group

no administrative-group

Parameters

exclude - Excludes the specified administrative group identified by either a group name or number.

include all - Includes the specified administrative groups identified by either a group name or number.

include any - Includes any of the specified range of administrative groups identified by either a group name or number.

Example

The following example states the path must include links from administrative group 1 and any link from an administrative group within groups 2, 3, or 4. The path must exclude links from administrative groups 7 and 9.

switch(config-te-rsvp-path-dyn-MyPath)# administrative-group include all 1 include any 2-4 exclude 7,9

The alias endpoint command configures a tunnel endpoint alias for both IPv4 and IPv6 endpoints and allows the additional next-hops to resolve using the existing tunnel. Use this command in the Router Traffic Engineering RSVP Tunnel Configuration Mode. Configure a maximum of 15 alias endpoints per tunnel.

Command Mode

Traffic Engineering RSVP Tunnel Configuration Mode

Command Syntax

alias endpoint [ ipv4_address | ipv6_address]

no alias endpoint

default alias endpoint

Parameters

Example

Use the following commands to enter the Router Traffic Engineering RSVP Tunnel Configuration Mode, and add an alias endpoint, 192.168.11.5 to the existing MyTunnel configuration:

switch(config)# router traffic-engineering
switch(config-te)# rsvp
switch(config-te-rsvp)# tunnel MyTunnel
switch(config-te-rsvp-tunnel-MyTunnel)# alias endpoint 192.168.11.5
switch(config-te-rsvp-tunnel-MyTunnel)#

The authentication index command configures the MPLS RSVP cryptographic authentication password globally for outgoing messages to the specified neighbor. Note that per-neighbor authentication takes precedence over global authentication.

The command authentication index index_num active is used to set the active password which is used when sending a message. The command authentication index index_num password is used to create the password with a given index. All configured passwords are used to authenticate incoming messages.

Command Mode

MPLS RSVP Configuration

Command Syntax

authentication index <num> password<WORD>

[no|default] authentication index <num> password <WORD> password

[no|default] authentication index <num> password<WORD> active

Parameters

<num> index number chosen as the password for cryptographic authentication for messages sent to the specified neighbor.

<WORD> can be a plaintext password or a number that specifies the obfuscation method followed by the obfuscated password.

Example

The following commands globally enable cryptographic authentication (RFC 2747) for MPLS RSVP messages sent from the switch and establish the authentication index 755 and the password s3cr3t for outgoing messages:

switch(config)#mpls rsvp
switch(config-mpls-rsvp)# authentication type md5
switch(config-mpls-rsvp)# authentication index 755 password s3cr3t
switch(config-mpls-rsvp)# authentication index 755 active

The authentication sequence-number window command configures the size of the sequence number reorder window for incoming MPLS RSVP messages. Increasing the size of the window allows RSVP to accommodate a larger number of out-of-order packets. A value of N means that a packet is accepted if all previously received packets with a higher sequence number are within the preceding N-1 packets. The default value is 5. A value of 1 effectively turns off support for packet reordering.

The no authentication sequence-number window and default authentication sequence-number window commands reset the size of the window to 5.

Command Mode

MPLS RSVP Configuration

Command Syntax

authentication sequence-number window size_num

no authentication sequence-number window

default authentication sequence-number window

Example

switch(config)#mpls rsvp
switch(config-mpls-rsvp)# authentication sequence-number window 50
switch(config-mpls-rsvp)#

The authentication type command configures the MPLS RSVP cryptographic authentication type globally. Setting the type to md5 enables cryptographic authentication (RFC 2747) for MPLS RSVP messages sent from the switch. Setting the type to none disables authentication globally. Note that per-neighbor authentication settings takes precedence over global settings.

The no authentication type and default authentication type commands disable authentication. Cryptographic authentication is disabled by default. These commands are functionally the same as authentication type none.

Command Mode

MPLS RSVP Configuration

Command Syntax

authentication type {md5 | none}

no authentication type {md5 | none}

default authentication type {md5 | none}

Examples

The bandwidth command configures the reserve bandwidth within the tunnel. The bandwidth can be set explicitly by setting a bandwidth value and the unit. When a bandwidth value of 0 is entered no bandwidth reservation is signalled. An alternative to explicit bandwidth configuration is to use the autobandwidth feature which specifies the minimum and maximum bandwidth to be used for the tunnel and otherwise adjusts bandwidth with an adjustment period based on the observed traffic going over the tunnel. The adjustment period is an optional parameter measured in seconds. The default adjustment period is 0 - a special value meaning that the algorithm decides when to adjust bandwidth based on statistical measurements (the actual adjustment cannot happen more frequently than the sampling, which occurs every 30 seconds).

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

bandwidth 0-1000 (bps | kbps | mbps | gbps)

bandwidth auto min (bps | kbps | mbps | gbps) 0-1000 max 0-1000 (bps | kbps | mbps | gbps) [ adjustment-period seconds]

bandwidth signaling [ disabled ]

no bandwidth 0-1000 (bps | kbps | mbps | gbps)

default bandwidth 0-1000 (bps | kbps | mbps | gbps)

no bandwidth auto

default bandwidth auto

no bandwidth signaling

default bandwidth signaling

Parameters

[bps | kbps | mbps | gbps] - Bandwidth values require the units of the value. The range of available units are bps, kbps, mbps, or gbps.

auto - Using the auto keyword configures autobandwidth within the configured minimum and maximum bandwidth and unit values. The tunnel adjusts the bandwidth based on the observed traffic going over the tunnel. This happens at adjustment interval, if configured. The default adjustment interval is 30 seconds, if no value is configured.

The min sets the minimum value and max sets the maximum value for the autobandwidth range. Each of the values require a unit to be selected.

The signaling keyword is used to enable signalling of the bandwidth reservation. A bandwidth of 0 returns signalling to the default of no signalling.

Example

The clear mpls rsvp counters command clears RSVP message counters. The clear mpls rsvp counters ( ip | ipv6 ) access-list command clears the ACL counters.

Command Mode

MPLS RSVP Configuration

Command Syntax

clear mpls rsvp counters

clear mpls rsvp counters ( ip | ipv6 ) access-list

Parameters

• ipv4 - Filter by IPv4.
• ipv6 - Filter by IPv6.

Example

switch(config)#mpls rsvp 
switch(config-mpls-rsvp)# clear mpls rsvp counters 

The clear mpls rsvp session command can be used to clear RSVP sessions. Clearing a session will remove the current state for the LSPs and send the appropriate TEAR messages. This can be useful for cleaning up stale sessions, renegotiating a session immediately after a config change, or forcing a recreation of an LSP that could be in an error state.

Command Mode

EXEC

Command Syntax

clear mpls rsvp session ( <filters> | all ) [ detail ]

Parameter

With <filters> being a list of one or more of: ( destination <ipv4> | id <id> ) ( name <name> | lsp <lsp> | bypass ) ( role <role> ) ( state <state> )

all - Clears all RSVP sessions.

bypass - Filter for bypass LSPs.

destination - Filter by destination address.

id - Filter by Session ID.

lsp- Filter by LSP number.

name - Filter by session name.

role - Filter by router role.

state - Filter by LSP state.

detail - Can be specified after all or any filters. When the command is run with detail the names of the sessions which are cleared are displayed, not just the count.

Examples

The following examples are on a switch with two RSVP sessions (sessionA and sessionB).

• This command clears all RSVP sessions on the switch.

  switch# clear mpls rsvp session all
  Cleared 2 sessions

• The detail keyword can be added to the end of the command to output the session name of all sessions being cleared.

  switch# clear mpls rsvp session all detail
  Clearing sessionA
  Clearing sessionB
  Cleared 2 sessions

• The all keyword can be replaced with filters to clear specific sessions. In the following example, the name sessionA filter is used to clear just sessionA.

  switch# clear mpls rsvp session name sessionA detail
  Clearing sessionA
  Cleared 1 sessions
  

• The following is a list of the supported filters for the clear command. Some filters can be combined in a single command. For example, both the bypass and state up filters can be used in the same command to clear all bypass sessions which are in the up state.

  switch# clear mpls rsvp session ?
    all          Clear all RSVP sessions
    bypass       Filter for bypass LSPs
    destination  Filter by destination address
    id           Filter by Session ID
    lsp          Filter by LSP#
    name         Filter by session name
    role         Filter by router role
    state        Filter by LSP state

The color command assigns a color to a tunnel to publish the tunnel to the system-colored-tunnel-rib, to help steer traffic into the tunnel.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

color ( <color value> | disabled )

default color - would inherit the color from the profile if one is configured

no color

color disabled - explicitly disables the color configuration irrespective of a profile being configured

Parameters

<color value> - numerical value in the range of 0 - 4292967295.

disable - disable the color attribute.

Example

switch(config-te-rsvp-tunnel-MyTunnel)# color 60

RSVP-TE uses CSPF to compute the FRR backup path. CSPF can be throttled to avoid frequent path changes when frequent network events occur. The cspf delay command configures the frequency of CSPF running after a network event by specifying the initial wait interval, back-off interval, and maximum wait interval for CSPF. The no form of the command removes the CSPF delay. The default cspf delay values are 100 for initial wait interval, 200 for back-off interval, and 1000 for maximum wait interval.

Command Mode

Router traffic engineering mode

Command Syntax

cspf delay [initial n back-off n] max n

no cspf delay

default cspf delay

Example

switch(config)#router traffic-engineering
switch(config-te)#cspf delay initial 200 back-off 400 max 2000
switch(config-te)#

The cspf ecmp tie-break command disables bandwidth least-fill when the random option is selected, and enables bandwidth least-fill when least-fill is selected. Bandwidth least-fill is enabled by default.

The no and default forms of the command restore bandwidth least-fill.

Command Mode

Traffic Engineering RSVP Configuration

Command Syntax

cspf ecmp tie-break (least-fill|random)

no cspf ecmp tie-break

default cspf ecmp tie-break

Parameters

• least-fill - Enables bandwidth least-fill.
• random - Disables bandwidth least-fill. Least-fill is enabled by default.

Example

• The following command disables bandwidth least-fill on the switch:

  switch(config-te-rsvp)#cspf ecmp tie-break random
  switch(config-te-rsvp)#

Each tunnel requires a destination IP to function. The destination ip command assigns a destination IP to the command-mode tunnel. For P2MP, this can be set multiple times, one for each of the multicast destinations.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

destination ip IP_address

no destination ip

default destination ip

Parameters

IP_address - The destination IPv4 address is required for the tunnel.

Example

switch(config-te-rsvp-tunnel-MyTunnel)# destination ip 10.2.2.2

The fast-reroute bypass tunnel optimization interval command configures the interval at which paths used for bypass tunnels are re-optimized. Paths are re-optimized every 30 seconds by default.

The no fast-reroute bypass tunnel optimization interval and default fast-reroute bypass tunnel optimization interval commands return the optimization interval to the default value of 30 seconds.

Command Mode

MPLS RSVP Configuration

Command Syntax

fast-reroute bypass tunnel optimization interval < number of seconds > seconds

no fast-reroute bypass tunnel optimization interval

default fast-reroute bypass tunnel optimization interval

Parameters

• seconds - The time between re-optimizations of bypass tunnel paths in seconds. The values range from 1 to 65535. Default is 30.

Example

switch(config)# mpls rsvp
switch(config-mpls-rsvp)# fast-reroute bypass tunnel optimization interval 45 seconds
switch(config-mpls-rsvp)# 

The fast-reroute mode command by default, RSVP tunnels inherit fast-reroute settings from the global RSVP configuration. The fast-reroute mode can also be configured for a specific RSVP tunnel by issuing the command in Traffic Engineering RSVP Tunnel configuration mode. Note that this only modifies the type of protection requested by the tunnel. If the requested protection is not enabled by the global RSVP configuration, it may not be provided to the tunnel.

The link-protection option protects against failure of the next link, the node-protection option protects against failure of the next node, and the none option disables the feature.

The default is no fast-reroute mode which means that the inherit fast-reroute settings from the global RSVP configuration.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

fast-reroute mode ( link-protection | node-protection | none }

no fast-reroute mode

default fast-reroute mode

Parameters

fast-reroute mode link-protection - Protect against failure of the next link.

fast-reroute mode node-protection - Protect against failure of the next node.

fast-reroute mode none - Disable fast reroute.

The fast-reroute mode command configures fast-reroute (FRR) (RFC 4090). The link-protection option protects against failure of the next link, the node-protection option protects against failure of the next node, and the none option disables the feature. Fast reroute is disabled by default.

On the headend, this knob acts as the global configuration which determines the type of protection requested by any LSPs originating there. This is superseded if the tunnels have a fast-reroute mode specified in the tunnel configuration (see fast-reroute mode (RSVP tunnel)) or in an associated profile.

On transit and headend, it also determines which type of bypass tunnels will be created at that node.

If node-protection is configured and requested by the LSP, then both node and link protection bypass tunnels will be created, with the node bypass being preferred if it's available.

If link-protection is configured or requested by the LSP, then only link-protection bypasses are created and used.

If the FRR mode is set to none or not requested at all by the LSP, then no bypass tunnels are created.

The no and default versions of the command disable fast reroute.

Command Mode

MPLS RSVP Configuration

Command Syntax

fast-reroute mode (link-protection | node-protection | none)

no fast-reroute mode

default fast-reroute mode

You can change the revertive behavior of the FRR from the global revertive mode to the local revertive mode. In the global revertive mode, an LSR re-routed over a bypass tunnel because the downstream link became unavailable keeps using the bypass tunnel after the link recovers. This expects the headend router to set up a new LSP upon notification that a link became unavailable. In the local revertive mode, the LSR switches back to using the primary link after recovery.

The default for reversion is global.

Command Mode

MPLS RSVP Configuration

Command syntax

fast-reroute reversion (global | local)

default fast-reroute reversion

no fast-reroute reversion

The graceful-restart role command enables a graceful-restart role for RSVP (helper or speaker) and enters the configuration mode for that role. Graceful restart is disabled by default, and requires hello messages to be enabled.

The no graceful-restart role and default graceful-restart role commands disable the feature.

The helper mode is enabled under the RSVP configuration mode, graceful-restart role helper.

The maximum accepted restart time value is configurable under the RSVP Graceful Restart helper configuration mode, timer restart maximum <t> seconds.

The maximum accepted recovery time value is configurable under the RSVP Graceful Restart helper configuration mode, timer recovery maximum <t> seconds.

The speaker mode is enabled under the RSVP configuration mode, graceful-restart role speaker.

The restart time value is configurable under the RSVP Graceful Restart speaker configuration mode, graceful-restart role speaker.

The recovery time value is configurable under the RSVP Graceful Restart speaker configuration mode. timer recovery <t> seconds.

Command Mode

MPLS RSVP Configuration Mode

Command Syntax

graceful-restart role (helper | speaker)

no graceful-restart role (helper | speaker)

default graceful-restart role (helper | speaker)

timer restart maximum <t> seconds - The maximum accepted restart time value is configurable under helper configuration mode.

default timer restart maximum

no timer restart maximum

timer recovery maximum <t> seconds - The maximum accepted recovery time value, configured under helper configuration mode.

default timer recovery maximum

no timer recovery maximum

timer restart <t> seconds - The restart time value is configurable under the speaker configuration mode.

default timer restart

no timer restart

timer recovery <t> seconds - The recovery time value is configurable under the speaker configuration mode.

default timer recovery

no timer recovery

Example

switch(config)#mpls rsvp
switch(config-mpls-rsvp)#graceful-restart role helper
switch(config-mpls-rsvp-gr-helper)#

The hello interval command sets the time between the hello packets. The no form of the command explicitly disables the Hello messages, while the default form of the command resets to the default setting of 10 seconds with a multiplier of 4.

Command Mode

MPLS RSVP Configuration

Command Syntax

hello interval <sec> multiplier <num>

no hello interval

default hello interval

The hardware next-hop fast-failover command enables hardware-accelerated next-hop failover on the switch. This should be enabled in every case where FRR is desired, especially for sub-50ms in the case of link protection and sub-150ms in the case of node protection.

It is disabled by default. Bypass tunnels can still be created even without this knob and FRR will still work on the software side, but on the hardware this is necessary for fast convergence.

The no and default forms of the command disable hardware-accelerated next-hop failover and fast-reroute bypass tunnels.

Command Mode

Router General Configuration

Command Syntax

hardware next-hop fast-failover

no hardware next-hop fast-failover

default hardware next-hop fast-failover

Example

switch(config)#router general
switch(config-router-general)#hardware next-hop fast-failover
switch(config-router-general)#

The hello-redundancy command is suggested for Hello Redundancy when used with LDP over RSVP. Both peers require the configuration.

The neighbor hello-redundancy command configures Hello Redundancy on all platforms under the LDP configuration mode. Hello Redundancy means if a Link Hello Adjacency is lost it will not drop the sessions right away, but will continue to maintain a Targeted Hello adjacency for up to the configured time. Then, if Link Hello adjacency is NOT restored within the duration, it will drop the Targeted Hello adjacency and the session associated with it. The timeout can be configured using the duration option of the command. An infinite value for the duration disables the timeout.

Command Mode

MPLS-LDP Configuration

Command Syntax

neighbor hello-redundancy [duration seconds]

default neighbor hello-redundancy

no neighbor hello-redundancy

Parameter

Examples

These commands enable Targeted Hello redundancy with a duration of 300 seconds.

switch(config-mpls-ldp)# neighbor hello-redundancy
switch(config-mpls-ldp)# neighbor hello-redundancy duration 300

Use either of the following commands to disable Hello Redundancy.

switch(config-mpls-ldp)# neighbor hello-redundancy none
switch(config-mpls-ldp)# default neighbor hello-redundancy

The hitless-restart command enables RSVP hitless restart. Hitless restart allows RSVP agents to restart without interrupting data-plane traffic. When hitless restart is enabled, the switch observes a recovery period after RSVP restarts. The switch preserves existing installed RSVP states until they are refreshed by neighbors. If RSVP states have not been refreshed before the expiration of the recovery period, they are cleared. The recovery period is 90 seconds by default, but can be configured using the timer recovery command. Hitless restart is disabled by default.

The no hitless-restart and default hitless-restart commands disable hitless restart.

The recovery time value timer recovery <t> seconds is configurable under the hitless-restart mode. .

The maximum accepted recovery time value timer recovery maximum <t> seconds is configurable under the hitless-restart mode, .

Command Mode

MPLS RSVP Configuration

Command Syntax

hitless-restart

no hitless-restart

default hitless-restart

timer recovery maximum <t> seconds - The maximum accepted recovery time value, configured under hitless-restart configuration mode.

default timer recovery maximum

no timer recovery maximum

timer recovery <t> seconds - The recovery time value is configurable under the hitless-restart configuration mode.

default timer recovery

no timer recovery

Parameters

Example

switch(config-mpls-rsvp)#hitless-restart
switch(config-mpls-rsvp)#

The hop command adds a hop to the configuration-mode dynamic path. If entered without options, it is configured as a strict hop by default. A strict hop places the specified hop after the the previously specified hop. The before and after options can be used to insert the specified hop in relation to another hop in an existing path.

The no and default forms of the command remove

Command Mode

Traffic Engineering RSVP Explicit Path Configuration

Command Syntax

hop <IPv4_address> [ [exclude] | [loose] [ [before <IPv4_address> | after <IPv4_address>] ] ]

default hop <IPv4_address> - If no address is supplied then all hops are removed.

no hop [<IPv4_address>] - If no address is supplied then all hops are removed.

Parameters

• exclude - Specifies that CSPF must not choose the specified address on the path.
• loose - Defines the hop as a loose hop, which allows other hops to be filled by the CSPF procedure.
• before - Specifies the hop before which this hop will be placed.
• after - Specifies the hop after which this hop will be placed.

The hop command adds a hop to the configuration-mode explicit path. If entered without options, the command places the specified hop in the order listed. The before and after options can be used to insert the specified hop in relation to another hop in an existing path.

Command Mode

Traffic Engineering RSVP Explicit Path Configuration

Command Syntax

hop <IPv4_address> [before IPv4_address | after <IPv4_address>]

default hop [ <IPv4_address>] - If no address is supplied then all hops are removed.

no hop [<IPv4_address>] - If no address is supplied then all hops are removed.

Parameters

• before - Specifies the hop before which this hop will be placed.
• after - Specifies the hop after which this hop will be placed.
• no - Removes the specifed hop.

The label local-termination command enables an egress LSR to advertise an IPv4 explicit-null label (Label 0) to its upstream router by using the explicit-null option.

The no label local-termination or default label local-termination or label local-termination implicit-null commands can be used to return the switch to the default state of advertising implicit-null labels (Label 3).

Command Mode

MPLS RSVP Configuration

Command Syntax

label local-termination (explicit-null | implicit-null)

no label local-termination

default label local-termination

Example

switch(config-mpls-rsvp)#label local-termination explicit-null
switch(config-mpls-rsvp)#

The igp shortcut command is used to specify whether a RSVP tunnel should participate in Interior Gateway Protocol (IGP) shortcuts.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

igp shortcut

default igp shortcut

no igp shortcut

Parameters

disabled - disables the igp shortcut command.

Example

switch(config-te-rsvp-tunnel-MyTunnel)# igp shortcut

The local-interface command specifies a local interface from which to derive the source IP address for RSVP-TE tunnels.

Command Mode

Traffic Engineering RSVP Configuration

Command Syntax

local-interface int_type int_num

no local-interface

default local-interface

Parameters

• int_type Interface type for the local interface. Values include Ethernet, Fabric, Loopback , Management, Port-Channel, Recirc-Channel, Tunnel, Vlan, and vxlan.
• int_num Interface number for the local interface.

Example

switch(config-te-rsvp)#local-interface Loopback 0
switch(config-te-rsvp)#

The lsp self-ping command enables LSP self-ping (RFC 7746). When enabled, all new LSPs created by RSVP-TE LER tunnels will perform self-ping. LSP self-ping verifies end-to-end establishment of the LSP by sending a self-ping message through the LSP before sending regular traffic. When LSP self-ping is enabled, an LSP created by an RSVP-TE tunnel will only be considered up and ready to carry traffic when a self-ping message successfully returns to the head end. LSP self-ping is disabled by default.

The no and default forms of the command disable LSP self-ping.

Command Mode

Global Configuration

Command Syntax

lsp self-ping

default lsp self-ping

no lsp self-ping

Parameters

Example

switch(config-te-rsvp)#lsp self-ping
switch(config-te-rsvp)#

The metric command configures a per RSVP tunnel metric to allow specific tunnels to a tunnel endpoint take precedence over other tunnels to the same tunnel endpoint when forming ECMP. The tunnel metric publishes to the tunnel RIB for BGP cost calculations.

The tunnel metric can also dynamically track the IGP SPF metric for the tunnel destination IP regardless of the changes in the Constrain-based Shortest Path First (CSPF) path to the destination.

Command Mode

Router Traffic Engineering RSVP Tunnel Configuration Mode

Command Syntax

metric ( igp | metric_value)

default metric

no metric

Parameters

Example

Use the following commands to enter the Router Traffic Engineering RSVP Tunnel Configuration Mode, and add a static metric, 10 to the existing MyTunnel configuration:

switch(config)# router traffic-engineering
switch(config-te)# rsvp
switch(config-te-rsvp)# tunnel MyTunnel
switch(config-te-rsvp-tunnel-MyTunnel)# metric 10
switch(config-te-rsvp-tunnel-MyTunnel)#

Use the following commands to enter the Router Traffic Engineering RSVP Tunnel Configuration Mode, and add the IGP SPF metric, igp, to the existing MyTunnel configuration:

switch(config)# router traffic-engineering
switch(config-te)# rsvp
switch(config-te-rsvp)# tunnel MyTunnel
switch(config-te-rsvp-tunnel-MyTunnel)# metric igp
switch(config-te-rsvp-tunnel-MyTunnel)#

The mpls rsvp command places the switch in MPLS RSVP configuration mode.

Command Mode

Global Configuration

Command Syntax

mpls rsvp

default mpls rsvp - Will wipe the configuration in the mode and disable RSVP.

no mpls rsvp - Will wipe the configuration in the mode and disable RSVP.

Commands Available in MPLS RSVP Configuration Mode

• authentication index
• authentication sequence-number window
• authentication type
• fast-reroute bypass tunnel optimization interval
• fast-reroute mode
• fast-reroute reversion
• graceful-restart role
• hello interval
• hitless-restart
• ip access-group
• ipv6 access-group
• label local-termination
• mtu signaling
• neighbor authentication index
• neighbor authentication type
• p2mp
• preemption method
• refresh interval
• refresh method
• shutdown (MPLS RSVP)
• srlg

Example

The following command places the switch in MPLS RSVP configuration mode:

switch(config)# mpls rsvp
switch(config-mpls-rsvp)# 

The mtu signaling command configures RSVP to enable MTU discovery. MTU signaling is disabled by default. The MTU is discovered with the AdSpec object in the Path message, which contains the minimum MTU seen in the path so-far, and is then reported back in the Resv message. If the config knob is not set on a transit node, then the MTU in the AdSpec is not updated on the node (essentially ignoring the node for MTU discovery). If it is not set on the ingress node, then MTU discovery is not done for any LSPs originating at that node.

The no mtu signaling, default mtu signaling, and default mtu signaling commands disable MTU signaling, preventing the updating of composed MTUs.

Command Mode

MPLS RSVP Configuration

Command Syntax

mtu signaling

no mtu signaling

default mtu signaling

Example

switch(config-mpls-rsvp)#mtu signaling
switch(config-mpls-rsvp)#

The neighbor authentication index command configures the MPLS RSVP cryptographic authentication password for outgoing messages to the specified neighbor. Per-neighbor authentication takes precedence over global authentication.

The no neighbor authentication index and default neighbor authentication index commands remove neighbor-specific authentication password configuration; the neighbor then inherits the global configuration.

Command Mode

MPLS RSVP Configuration

Command Syntax

neighbor neighbor_address authentication index index_num active

no neighbor neighbor_address authentication index index_num active

default neighbor neighbor_address authentication index index_num active

Parameters

• neighbor_address - address of the MPLS RSVP neighbor.
• index_num - index number chosen as the password for cryptographic authentication for messages sent to the specified neighbor.

Examples

switch(config)#mpls rsvp
switch(config-mpls-rsvp)# neighbor 172.16.0.0 authentication type md5
switch(config-mpls-rsvp)# neighbor 172.16.0.0 authentication index 755 active
switch(config-mpls-rsvp)#

The neighbor authentication type command configures the MPLS RSVP cryptographic authentication type for the specified neighbor. Setting the type to md5 enables cryptographic authentication (RFC 2747) for MPLS RSVP messages sent to the specified neighbor. Setting the type to none disables authentication for the neighbor. Note that per-neighbor authentication takes precedence over global authentication.

The no neighbor authentication and default neighbor authentication commands remove neighbor-specific authentication type configuration; the neighbor then inherits global configuration.

Command Mode

MPLS RSVP Configuration

Command Syntax

neighbor neighbor_address authentication type (md5 | none)

no neighbor neighbor_address authentication type

default neighbor neighbor_address authentication type

Parameters

• neighbor_address - address of the MPLS RSVP neighbor.
• md5 - enables MPLS RSVP cryptographic authentication (RFC 2747) for the specified neighbor. A password for outgoing messages must also be configured using the neighbor authentication index command.
• none - disables MPLS RSVP cryptographic authentication for messages sent to the specified neighbor.

Examples

• The following commands enable cryptographic authentication for the neighbor at 172.16.0.0 and establishes index 755 as the password for outgoing messages to that neighbor:

  switch(config)#mpls rsvp
  switch(config-mpls-rsvp)# neighbor 172.16.0.0 authentication type md5
  switch(config-mpls-rsvp)# neighbor 172.16.0.0 authentication index 755 active
  switch(config-mpls-rsvp)#

• The following commands disable cryptographic authentication for the neighbor at 172.16.0.0:

  switch(config)#mpls rsvp
  switch(config-mpls-rsvp)# neighbor 172.16.0.0 authentication type none
  switch(config-mpls-rsvp)#

Periodic tunnel optimization can be configured globally or individually for a specific tunnel using the optimization interval command. This configuration is applied to all RSVP tunnels.

The optimization interval can also be configured on an individual tunnel by entering the command in tunnel sub-mode. The optimization interval configured in the tunnel sub-mode overrides the optimization interval configured globally.

Optimization can also be disabled on a specific tunnel or globally, which is the default.

Command Mode

Traffic Engineering RSVP Configuration

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

optimization interval <numerical value> seconds

default optimization

no optimization

Parameters

numerical value - enter the optimization interval in seconds.

From the config-mpls-rsvp configuration mode, the p2mp command places the switch in mpls-rsvp-p2mp configuration mode.

Command Mode

MPLS-RSVP Configuration Mode

Command Syntax

p2mp

default p2mp

no p2mp

Parameter

p2mp - Enables RSVP P2MP.

no p2mp - Disables RSVP P2MP.

default p2mp - Disables RSVP P2MP.

Examples

• RSVP P2MP signaling functionality is enabled using the p2mp command.

  switch# config
  switch(config)# mpls rsvp
  switch(config-mpls-rsvp)# no shutdown
  switch(config-mpls-rsvp)# p2mp
  switch(config-mpls-rsvp-p2mp)#

• P2MP functionality is disabled by issuing the disabled command in the p2mp submode. This allows disabling RSVP P2MP without wiping any active configuration in the p2mp sub-mode.

  switch(config-mpls-rsvp-p2mp)# disabled
  switch(config-mpls-rsvp-p2mp)#
  

• The no p2mp will both remove the p2mp sub-mode configuration and also disable RSVP P2MP.

• switch(config-mpls-rsvp)# no p2mp
  switch(config-mpls-rsvp)#

• The exit command will leave the sub-mode but will retain the configuration in it.

  switch(config-mpls-rsvp-p2mp)# exit
  switch(config-mpls-rsvp)#

The path command in Traffic Engineering RSVP Tunnel P2P configuration mode specifies the configuration mode for the path. If the path does not already exist, it creates it. Path configuration modes are group-change modes: changes take effect only when exiting the mode. To exit the mode without saving changes, use the abort command.

The no path and default path commands delete the specified path.

Command Syntax

path spec_name (dynamic | explicit)

no path spec_name

default path spec_name

Parameters

• spec_name - Specification name for the path.
• dynamic - Establishes a dynamic path.
• explicit - Establishes an explicit path.

Example

The following commands creates an explicit path named spec1 for the tunnel tunnel7 and enters the configuration mode for that path.

switch(config-te-rsvp)#tunnel tunnel7 
switch(config-te-rsvp-tunnel-tunnel7)# path spec1

The path command in Traffic Engineering RSVP Tunnel configuration mode specifies a primary or secondary path along which the LSPs are established for the configuration-mode RSVP tunnel.

The no and default forms of the command remove the named path.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

path spec_name (secondary pre-signaled)

no path spec_name (secondary)

default path spec_name(secondary)

The ping mpls rsvp session command allows the user to check if the remote endpoint of an RSVP session is reachable through the LSP. Running ping on an RSVP LSP creates an LSP Ping Request packet with the label programmed by RSVP and that packet will follow the MPLS path until it reaches the end of the tunnel. If the node that receives this Request is the intended destination, it replies with an RSVP Ping Reply through normal IP routing. When the source receives the Reply it indicates that there are no apparent data plane failures and that the endpoint of that LSP is reachable.

Command Mode

Privileged EXEC mode

Command Syntax

ping mpls rsvp session ([id num [lsp lspId ] | name word)] [pad-reply] [repeat <num_repeat> ] [ source (IPv4_address | IPv6_address) ] [ standard (arista|ietf) ] | [ tos (<tos_value> | dscp <dscp_value>) ] [ traffic-class <traffic_class> ] [ interval <interval_value> ]

The preemption method command enables deferred failure of RSVP-TE LSPs on link oversubscription. Hard preemption will result in the LSP being torn down without any delay. Use a preemption timer value to configure a delay, before tearing down an LSP due to losing its bandwidth reservation, on a transit router to support LSPs signaled with soft preemption enabled by the headend (RFC 5712).

The default preemption method is soft preemption with a timer value of 30 seconds.

Command Mode

MPLS RSVP Configuration

Command Syntax

preemption method (hard | soft ) [timer <seconds>]

no preemption method

default preemption method

The priority command configures the tunnel priority. The setup keyword is used to set the priority of the setup. The hold keyword sets the priority of the tunnel hold. The priority value range is 0 (highest priority) to 7 (lowest priority). The setup priority can be used without a hold priority, but a hold priority requires a setup priority to be set.

When both setup and hold priorities are configured, the hold value should be a higher priority (lower value) than the setup priority to avoid cycles where an LSP is continuously established and immediately preempted.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

priority 0-7

no priority - Default setting and will inherit from profile. The default profile values are: priority setup 7 hold 0

default priority

Example

switch(config-te-rsvp-tunnel-myTunnel)# priority setup 5 hold 3

The refresh interval command configures the interval at which MPLS RSVP Path and Resv messages are sent to refresh the state. State is refreshed at a randomly selected interval between 0.5 and 1.5 times the configured value. The default value is 30 seconds.

The no and default versions of the command reset the refresh interval to 30 seconds.

Command Mode

MPLS RSVP Configuration

Command Syntax

refresh interval seconds

no refresh interval

default refresh interval

Parameters

seconds - Refresh interval in seconds. The actual refresh interval is randomly generated in the range of 0.5 to 1.5 times this value. Values range from 1 to 65535. Default value is 30.

Example

switch(config-mpls-rsvp)#refresh interval 100
switch(config-mpls-rsvp)#

Using the Srefresh method command with the bundled keyword enables the Refresh Overhead Reduction that supports the sending of message IDs and refreshing state with refresh messages.

Command Mode

MPLS RSVP Configuration

Command Syntax

Srefresh method [bundled | explicit ]

no Srefresh method - More tokens allowed but ignored.

default Srefresh method - More tokens allowed but ignored.

When periodic tunnel optimization is not configured, tunnels will not re-optimize automatically, but they can be optimized on demand by using the refresh rsvp tunnel optimization command.

Command Mode

Privileged Exec

Command Syntax

refresh rsvp tunnel optimization (all | name tunnel_name [avoid ecmp hop ecmp_hops] )

The router traffic-engineeing command places the switch in Traffic Engineering configuration mode.

Command Mode

Global Configuration

Command Syntax

router traffic-engineering

Parameters

switch(config)# router traffic-engineering
switch(config-te)#

The rsvp command places the switch in Traffic Engineering RSVP configuration mode.

Command Mode

Traffic Engineering Configuration

Command Syntax

rsvp

default rsvp

no rsvp

Commands Available in RSVP Configuration Mode

Example

switch(config)#router traffic-engineering
switch(config-te)#rsvp
switch(config-te-rsvp)#

The rsvp bypass administrative-group command specifies administrative groups that must be included in, or excluded from, the links used for CSPF path computation. The restrictions specified for an interface apply to all LSPs that bypass that interface. This includes both link and node protection. A single command can incorporate ranges for include any, include all, and exclude.

The no rsvp bypass administrative-group and default rsvp bypass administrative-group commands remove bypass restrictions for the interface.

Command Mode

Interface Configuration

Command Syntax

rsvp bypass administrative-group [ include any <RANGE>] | [include all <RANGE>] | [exclude <RANGE>] with <RANGE> being: ( <0x0-0xFFFFFFFF> | <0-511> | <0-511>-<0-511> | WORD )

no rsvp bypass administrative-group

default rsvp bypass administrative-group

Parameters

exclude - Excludes the specified administrative group identified by either a group name or number.

include all - Includes the specified administrative groups identified by either a group name or number.

include any - Includes any of the specified range of administrative groups identified by either a group name or number.

Example

switch(config)#interface ethernet 1/1
switch(config-if-Et1/1)#rsvp bypass administrative-group include all 5-16 include any 8-75 exclude 82,93,115-168,255
switch(config-if-Et1/1)#

Use the show mpls rsvp to display the overall state of the RSVP.

Command Mode

EXEC

Command Syntax

show mpls rsvp [bandwidth | counters | ( ( ip | ipv6 ) access-list ( <name> | dynamic | summary ) ) | neighbor | session]

Example

switch> show mpls rsvp   	 
Administrative state: enabled
Operational state: up
Refresh interval: 30 seconds
Refresh reduction: enabled
Hello messages: enabled
   Hello interval: 10 seconds
   Hello multiplier: 4
Fast Re-Route: disabled
   Mode: none
   Hierarchical FECs: enabled
Cryptographic authentication: disabled
MTU signaling: disabled
Number of sessions: 1
   Ingress/Transit/Egress: 0/1/0
Number of LSPs: 1
   Operational: 1
   Ingress/Transit/Egress: 0/1/0
   Currently using bypass tunnels: 0
Number of bypass tunnels: 0
Number of neighbors: 2
Number of interfaces: 2

Use the show mpls rsvp counters command to display RSVP message counters, per interface. The address family filter has to be specified first, if it is specified. Then the interface filter is specified, if it is specified. This cannot be done in the opposite order.

Command Mode

EXEC

Command Syntax

show mpls rsvp counters [ ipv4 | ipv6 ] [interface [Ethernet |Fabric | Loopback | Management | Port-Channel | Switch | Tunnel | Vlan | vxlan]]

Parameters

Example

switch> show mpls rsvp counters
Received Messages:

Interface  Path  PathTear  PathErr  Resv  ResvTear  ResvErr  Srefresh  Other  Errors  
---------  ----  --------  -------  ----  --------  -------  --------  -----  ------  
Ethernet1  5     0         0        0     0         0        8         51     1  	 
Ethernet2  0     0         0        14    0         0        0         0      0  	 

Sent Messages:

Interface  Path  PathTear  PathErr  Resv  ResvTear  ResvErr  Srefresh  Other  Errors  
---------  ----  --------  -------  ----  --------  -------  --------  -----  ------  
Ethernet1  0     0         0        4     0         0        9         49     0  	 
Ethernet2  13    0         0        0     0         0        0         4      0  	

Use the show mpls rsvp neighbor command to display information about all RSVP neighbors, or for a specific neighbor.

Command Mode

EXEC

Command Syntax

show mpls rsvp neighbor [A.B.C.D | A:B:C:D:E:F:G:H | summary]

The show mpls rsvp session command displays RSVP session information.

Command Mode

EXEC

Command Syntax

show mpls rsvp session ( <filters> | all ) [ detail ]

Parameter

With <filters> being a list of one or more of: ( destination <ipv4> | id <id> ) ( name <name> | lsp <lsp> | bypass ) ( role <role> ) ( state <state> )

all - Clears all RSVP sessions.

bypass - Filter for bypass LSPs.

destination - Filter by destination address.

id - Filter by Session ID.

lsp- Filter by LSP number.

name - Filter by session name.

role - Filter by router role.

state - Filter by LSP state.

detail - Can be specified after all or any filters. When the command is run with detail the names of the sessions which are cleared are displayed, not just the count.

The show rib system-tunneling-ldp-rib route ip command shows RSVP tunnel next hop resolutions for LDP.

Command Mode

EXEC

Command Syntax

show rib system-tunneling-ldp-rib route ip

Examples

switch# show rib system-tunneling-ldp-rib route ip
VRF: default
Codes: I L1 - IS-IS level 1, I L2 - IS-IS level 2
Gateway of last resort is not set
 I L2     5.5.5.5/32 [115/20] via 5.5.5.5/32, RSVP LER tunnel index 1
                                 via 10.0.25.5, Ethernet4, label imp-null(3)
                              via 5.5.5.5/32, RSVP LER tunnel index 2
                                 via 10.0.23.3, Ethernet2, label 116384
 I L2     6.6.6.6/32 [115/30] via 5.5.5.5/32, RSVP LER tunnel index 1
                                 via 10.0.25.5, Ethernet4, label imp-null(3)
                              via 5.5.5.5/32, RSVP LER tunnel index 2
                                 via 10.0.23.3, Ethernet2, label 116384
 I L2     10.0.56.0/24 [115/20] via 5.5.5.5/32, RSVP LER tunnel index 1
                                   via 10.0.25.5, Ethernet4, label imp-null(3)
                                via 5.5.5.5/32, RSVP LER tunnel index 2
                                   via 10.0.23.3, Ethernet2, label 116384

The show traffic-engineering cspf path command displays all the paths counted by CSPF.

Command Mode

EXEC

Command Syntax

show traffic-engineering cspf path [destination-IP <IP address>] [detail]

show traffic-engineering cspf path ( <ipv4> | <path-id> | tunnel-name <name> ) [ detail ] - A path or tunnel name can be specified.

show traffic-engineering cspf path p2mp ( <path-id> | tunnel-name <name> ) [ detail ] - A P2MP version of the command is also available.

show traffic-engineering cspf path <ipv4> links - Displays the link attributes of the links on all the CSPF paths with a given destination IP address.

Parameters

A.B.C.D - CSPF path to this destination IP address.

detail - Shows detailed path information.

links

p2mp

tunnel-name

Use the show traffic-engineering database to display the topology used for CSPF computations. Starting from eos Release 4.23.1F, the SRLG group details of a neighbor are shown if it is advertised.

Command Mode

EXEC

Command Syntax

show traffic-engineering database

Example

switch# show traffic-engineering database

TE Router-ID: 1.0.0.2
  Source: IS-IS Level-1 IPv4 Topology Database
    IS-IS System-ID: 1111.1111.1001
      Number of Links: 2
        Network type: P2P 
          Neighbor: 1111.1111.1002
		 Administrative group (Color): 0x123a
            TE Metric: 30
            IPv4 Interface Addresses:
              20.20.20.1
              192.168.20.1
            IPv4 Neighbor Addresses:
              20.20.20.2
              192.168.20.2
            Maximum link BW: 25.00 Gbps
            Maximum reservable link BW: 10.00 Mbps
            Unreserved BW:
              TE class 0: 9.00 Mbps     TE class 1: 9.00 Mbps
              TE class 2: 8.5.00 Mbps   TE class 3: 8.00 Mbps
              TE class 4: 7.00 Mbps     TE class 5: 7.50 Mbps
              TE class 6: 6.00 Mbps     TE class 7: 6.00 Mbps                                                                                        
        Network Type: LAN  
          Neighbor: 1111.1111.1003.02
            TE Metric: 30    
        	Administrative Group: 0x12     
            IPv4 Local Addresses:
              30.30.30.1                                                                                                      
            Maximum Link BW: 10.00 Gbps                                                                                       
            Maximum Reservable Link BW: 10.50 Gbps                                                                             
            Unreserved BW:                                                                                                     
              TE-Class 0: 8.50 Gbps       TE-Class 1: 8.70 Gbps                                                               
              TE-Class 2: 7.50 Gbps       TE-Class 3: 7.25 Gbps                                                               
              TE-Class 4: 6.50 Gbps       TE-Class 5: 7.30 Gbps                                                               
              TE-Class 6: 3.50 Gbps       TE-Class 7: 7.20 Gbps
  Source: IS-IS Level-2 IPv4 Topology Database  
    IS-IS System-ID: 1111.1111.1003
      Number of Links: 1  
        Network Type: LAN
         Neighbor: 1111.1111.1003.16
           IPv4 Local Addresses:
             40.40.40.1
            Maximum link BW: 10.00 Gbps
            Maximum reservable link BW: 5.00 Gbps
            Unreserved BW:
              TE class 0: 4.00 Gbps     TE class 1: 4.00 Gbps
              TE class 2: 4.00 Gbps     TE class 3: 4.00 Gbps
              TE class 4: 3.00 Gbps     TE class 5: 3.00 Gbps
              TE class 6: 3.00 Gbps     TE class 7: 3.00 Gbps
  Source: OSPFv2 Instance ID 33 Area-ID 0.0.0.0 Topology Database
    OSPFv2 Router-ID: 1.2.3.4
      Number of Links: 2
        Network type: P2P
          Neighbor: 3.4.5.6
            Administrative group (Color): 0x123a
            TE metric: 30
            IPv4 Interface Addresses:
              20.20.20.1
              192.168.20.1
            IPv4 Neighbor Addresses:
              20.20.20.2
              192.168.20.1
            Maximum link BW: 25.00 Gbps
            Maximum reservable link BW: 10.00 Mbps
            Unreserved BW:
              TE class 0: 9.00 Mbps    TE class 1: 9.00 Mbps
              TE class 2: 8.50 Mbps    TE class 3: 8.00 Mbps
              TE class 4: 7.00 Mbps    TE class 5: 7.50 Mbps
              TE class 6: 6.00 Mbps    TE class 7: 6.00 Mbps
        Network type: LAN
          Neighbor: 2.3.4.5
            Administrative group (Color): 0x12
            TE metric: 30
            IPv4 Interface Addresses:
              30.30.30.1
            IPv4 Neighbor Addresses:
              0.0.0.0
            Maximum link BW: 10.00 Gbps
            Maximum reservable link BW: 10.5 Gbps
            Unreserved BW:
              TE class 0: 8.50 Gbps    TE class 1: 8.70 Gbps
              TE class 2: 7.50 Gbps    TE class 3: 7.25 Gbps
              TE class 4: 6.50 Gbps    TE class 5: 7.30 Gbps
              TE class 6: 3.50 Gbps    TE class 7: 7.20 Gbps                                                                                         
TE Router-ID: 1.0.0.3
  Source: IS-IS Level-1 IPv4 Topology Database
    IS-IS System-ID: 1111.1111.1004
      Number of Links: 2
        Network type: P2P
          Neighbor: 1111.1111.1002
          IPv4 Interface Addresses:
              1.0.5.1
            IPv4 Neighbor Addresses:
              1.0.5.2
            Maximum link BW: 50.00 Gbps
            Maximum reservable link BW: 10.00 Gbps
            Unreserved BW:
              TE class 0: 8.00 Gbps     TE class 1: 8.00 Gbps
              TE class 2: 8.00 Gbps     TE class 3: 8.00 Gbps
              TE class 4: 7.00 Gbps     TE class 5: 7.00 Gbps
              TE class 6: 7.00 Gbps     TE class 7: 7.00 Gbps
            Shared Risk Link Group:
              Group: 100
              Group: green-link (150)

The show traffic-engineering rsvp tunnel detail command shows RSVP tunnel detail including LDP tunneling eligibility.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel detail

Parameters

Examples

switch>show traffic-engineering rsvp tunnel detail
Tunnel tunnel2to5
   Source: 2.2.2.2
   Destination: 5.5.5.5
   State: up
   Bandwidth: 0.0 bps, mode explicit
      Setup priority: 7
      Hold priority: 0
   MTU signaling: disabled
   Periodic optimization: disabled
   Session #1
   Tunnel index: 1
   LSPs: 1
   LDP tunneling: enabled
   IGP shortcut: disabled
   Active path: primary
   Primary path: path2to5
      State: up, in use
      Path (explicit):
         10.0.25.5
Tunnel tunnel2to5via3
   Source: 2.2.2.2
   Destination: 5.5.5.5
   State: up
   Bandwidth: 0.0 bps, mode explicit
      Setup priority: 7
      Hold priority: 0
   MTU signaling: disabled
   Periodic optimization: disabled
   Session #2
   Tunnel index: 2
   LSPs: 1
   LDP tunneling: enabled
   IGP shortcut: disabled
   Active path: primary
   Primary path: path2to5via3
      State: up, in use
      Path (explicit):
         10.0.23.3
         10.0.35.5

Display the history of a RSVP tunnel. For information about the detail version of this commend, refer to show traffic-engineering rsvp tunnel detail.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel history

Parameters

Example

switch> show traffic-engineering rsvp tunnel history
Tunnel TestTunnel
Mon 2020-07-13 07:04:44 CSPF query on primary path
Mon 2020-07-13 07:04:44 State change: down
Mon 2020-07-13 07:04:44 LSP #1 added
Mon 2020-07-13 07:04:44 CSPF reply for primary path, path found
Mon 2020-07-13 07:04:44 LSP #2 added
Mon 2020-07-13 07:04:46 State change: up using primary path
LSP #1
Mon 2020-07-13 07:04:44 LSP created
Mon 2020-07-13 07:04:44 State change: establishing
Mon 2020-07-13 07:04:46 State change: up
LSP #2
Mon 2020-07-13 07:04:44 LSP created
Mon 2020-07-13 07:04:44 State change: establishing
Mon 2020-07-13 07:04:47 State change: up

Display RSVP tunnel LSPs using the show traffic-engineering rsvp tunnel lsp command.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel lsp

Parameters

Example

switch> show traffic-engineering rsvp tunnel lsp
Tunnel TestTunnel
   Source: 10.1.1.1
   Destination: 10.4.4.4
   Color: 60, Metric: 0
   State: up
   Bandwidth: 0.0 bps, mode explicit
   LSPs: 2
   Active path: primary
   LSP 1:
      Path specification: Path2to4, primary
      CSPF Path ID: 10001
      Bandwidth: 0.0 bps
      State: up, in use
      Path (dynamic):
         10.0.12.2
         10.0.23.3
         10.0.34.4
   LSP 2:
      Path specification: Path2to4detour, secondary
      Bandwidth: 0.0 bps
      State: up
      Path (explicit):
         10.0.16.6
         10.0.67.7
         10.0.37.3
         10.0.34.4

Display the status of a specific RSVP tunnel, using the name of the tunnel with the show traffic-engineering rsvp tunnel name command.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel name<name of tunnel>

Parameters

Example

switch>show traffic-engineering rsvp tunnel name MyTunnel
! RSVP is not enabled
! MPLS routing is not enabled
! Traffic engineering is not enabled
! Agent RSVP is not running
! Agent MPLS is not running

Display split tunnel information in a summarized fashion using the show traffic-engineering rsvp tunnel sub-tunnel summary command.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel sub-tunnel summary

Parameters

Example

switch> show traffic-engineering rsvp tunnel sub-tunnel summary
Tunnel: TestSplitTunnelUp
Sub Tunnel Session ID Index  Active Path Bandwidth LSPs State
========== ========== ====== =========== ========= ==== =====
1          65535      123456 primary     19.2 Kbps 1    up
2          65535      123460 secondary   19.2 Kbps 1    up
Tunnel: TestSplitTunnelUp-2
Sub Tunnel Session ID Index  Active Path Bandwidth LSPs State
========== ========== ====== =========== ========= ==== =====
1          65535      123457 secondary   19.2 Kbps 1    up

Display a summary of the status of an RSVP tunnel using the show traffic-engineering rsvp tunnel summary command.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel summary

Parameters

Example

switch> show traffic-engineering rsvp tunnel summary
Tunnel Name Destination Color Index Active Path Reserved BW LSPs State
=========== =========== ===== ===== =========== =========== ==== =====
TestTunnel  10.4.4.4    60    -     primary     0.0 bps     2    up

Display the traffic engineering RSVP tunnel status using the show traffic-engineering rsvp tunnel command.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp tunnel

Parameters

Example

switch> show traffic-engineering rsvp tunnel
Tunnel TestTunnel
   Source: 10.1.1.1
   Destination: 10.4.4.4
   Color: 60, Metric: 0
   State: up
   Bandwidth: 0.0 bps, mode explicit
   LSPs: 2
   Active path: primary
   Primary path: Path2to4
      State: up, in use
      Path (dynamic):
         10.0.12.2
         10.0.23.3
         10.0.34.4
   Secondary path: Path2to4detour
      State: up
      Path (explicit):
         10.0.16.6
         10.0.67.7
         10.0.37.3
         10.0.34.4

The show traffic-engineering rsvp command displays the current status of traffic engineering RSVP.

Command Mode

EXEC

Command Syntax

show traffic-engineering rsvp

Parameters

Example

switch> show traffic-engineering rsvp
Local interface: 'Loopback0'
IP address: 10.1.1.1
Number of tunnels: 1
Operational: 1
Secondary path enabled: 1
Secondary path in use: 0
Number of LSPs: 2
Operational: 2

The shutdown command disables the RSVP-TE protocol instance. This command allows shutting down RSVP, but retaining the configuration in the MPLS RSVP config mode, as opposed to default mpls rsvp or no mpls rsvp, which would disable RSVP but also wipe the config.

RSVP-TE is enabled globally by issuing no shutdown in the configuration sub-mode. RSVP also needs MPLS to be enabled globally. There is no per-interface knob to enable or disable RSVP. However, RSVP will not work on interfaces on which MPLS is disabled with no mpls ip.

Command Mode

MPLS RSVP Configuration

Command Syntax

shutdown

no shutdown

A tunnel is not enabled by default, it must be explicitly enabled using the no shutdown command.

Changes made in the Tunnel submode only take effect when the exited normally, using the exit command. Changes made in the Tunnel submode are discarded using the abort command.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

no shutdown

Parameters

The split-tunnel command enables and configures RSVP sub-tunnels. Using the quantum keyword enables fixed-bandwidth sub-tunnels. Specifying a bandwidth minimum and maximum enables adaptive sub-tunnels which grow or shrink in response to changes in bandwidth.

The no split-tunnel and default split-tunnel commands disable adaptive split tunnels for the configuration-mode tunnel.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

split-tunnel (disabled | (min bandwidth_num bandwidth_units max bandwidth_num bandwidth_units [sub-tunnels limit max_tunnels] [reduction-delay time time_units] ) | (quantum bandwidth_num bandwidth_units [sub-tunnels limit max_tunnels] ))

no split-tunnel

default split-tunnel

The srlg command specifies if link SRLGs of a primary LSP are to be considered as constraints while creating a fast-reroute bypass tunnel with either link or node protection. When the srlg command is entered with the strict option, then when a path for a bypass tunnel excluding SRLGs of the next-hop interface of the primary LSP can not be found, RSVP does not set up the bypass tunnel. When the srlg command is entered without the strict option, then a bypass tunnel is set up with as many links as possible that exclude the SRLGs of the next-hop interface of the primary LSP. Where such links are not available, links that have the least number of SRLGs which are to be excluded are used.

The no srlg and default srlg commands restore the default state by turning off SRLG processing.

Command Mode

MPLS RSVP Configuration

Command Syntax

srlg [strict]

no srlg

default srlg

Parameters

strict - Applies strict SRLG constraints.

The neighbor <IP> targeted command is used to configure a targeted adjacency with a non-adjacent router from the LDP configuration mode. Both peers require the targeted adjacency configuration because a targeted adjacency is not accepted from an unknown LSR by default.

Command Mode

MPLS-LDP Configuration

Command Syntax

neighbor ip_address targeted

no neighbor ip_address targeted

default neighbor targeted

Parameter

ip_address - The IP address of the neighbor to establish a targeted adjacency with.

Examples

switch(config-mpls-ldp)# neighbor 5.5.5.5 targeted

This command will have a different behavior depending on the command mode (speaker or helper).

The timer recovery command configures the maximum accepted MPLS RSVP recovery time. This is the set maximum that will be used if the neighbor wants an even higher timer.

The no timer recovery and default timer recovery commands restore the maximum recovery timer value to its default. In speaker mode, the default maximum is 90 seconds. In helper mode, the default is to accept all maximum recovery time values.

Command Mode

• MPLS RSVP Graceful Restart Helper Configuration
• MPLS RSVP Graceful Restart Speaker Configuration
• MPLS RSVP Hitless Restart Configuration

Example to enter configuration mode:

graceful-restart role {helper | speaker}

Command Syntax

timer recovery numseconds

no timer recovery

default timer recovery

Helper Configuration Mode

timer recovery maximum <t> seconds - The maximum accepted recovery time value, configured under helper configuration mode.

default timer recovery maximum <t> seconds

no timer recovery maximum <t> seconds

Speaker Configuration Mode

timer recovery <t> seconds - The requested recovery time value is configurable under the speaker configuration mode.

Example

switch(config-mpls-rsvp-gr-speaker)#timer recovery 45 seconds
switch(config-mpls-rsvp-gr-speaker)#

The timer restart command configures a maximum acceptable value for RSVP graceful restart timers received from RSVP neighbors. This is the set maximum that will be used if the neighbor wants an even higher timer.

The no timer restart and no timer restart commands restore the maximum restart time value to its default. In speaker mode, the default requested is 90 seconds. In helper mode, the default is to accept all maximum restart time values.

Command Mode

• MPLS RSVP Graceful Restart Helper Configuration
• MPLS RSVP Graceful Restart Speaker Configuration
• MPLS RSVP Hitless Restart Configuration

Example to enter configuration mode:

graceful-restart role {helper | speaker}

Command Syntax

Helper Configuration

timer restart maximum <t> seconds - The maximum accepted restart time value is configurable under helper configuration mode.

default timer restart maximum <t> seconds

no timer restart maximum <t> seconds

Speaker Configuration

timer restart <t> seconds - The restart time value is configurable under the speaker configuration mode.

default timer restart <t> seconds

no timer restart <t> seconds

timer recovery <t> seconds - The recovery time value is configurable under the speaker configuration mode.

Example

switch(config-mpls-rsvp-gr-speaker)#timer restart 45 seconds
switch(config-mpls-rsvp-gr-speaker)#

The traffic-engineering srlg command configures a shared risk link group (SRLG) for the command-mode interface.

The no traffic-engineering srlg and default traffic-engineering srlg commands remove the SRLG configuration from the interface.

Command Mode

Interface Configuration

Command Syntax

traffic-engineering srlg (srlg_name|srlg_group_ID)

no traffic-engineering srlg (srlg_name|srlg_group_ID)

default traffic-engineering srlg (srlg_name|srlg_group_ID)

name

Example

switch(config)#interface ethernet 1/1
switch(config-if-Et1/1)#traffic-engineering srlg 29975
switch(config-if-Et1/1)#

The tunnel command enters Traffic Engineering RSVP Tunnel configuration mode for the named tunnel. If the named tunnel does not exist, the command creates it.

Entering the p2mp keyword after the name of the tunnel places the tunnel into peer-to-multipeer (p2mp) mode.

Command Mode

Traffic Engineering RSVP Configuration

Command Syntax

tunnel name [p2mp]

no tunnel name [p2mp]

default tunnel name [p2mp]

Parameters

p2mp - Places the tunnel into peer-to-multipeer (p2mp) mode.

Example

switch(config-te-rsvp)# tunnel MyTunnel
switch(config-te-rsvp-tunnel-MyTunnel)#

LDP over RSVP is configured by enabling the tunneling ldp command. When enabled, the tunneling ldp command causes the RSVP tunnel to become eligible for LDP over RSVP.

To disable LDP over RSVP on the tunnel use the default tunneling command.

Command Mode

Traffic Engineering RSVP Tunnel Configuration

Command Syntax

tunneling ldp

Parameters

Example

switch(config-te-rsvp-tunnel-MyTunnel)# tunneling ldp

The tunneling ldp ucmp command configures UCMP with LDP over RSVP.

Command Mode

RSVP tunnel configuration mode

Command Syntax

tunneling ldp ucmp

Parameter

bandwidth 20 gbps - The bandwidth configured on the RSVP tunnel determines the weight associated with this tunnel when traffic to the tunnel endpoint is UCMP load balanced.

bandwidth signalling disabled - The bandwidth configured on RSVP tunnels is both signalled and used as the UCMP weight. Use this command, to specify bandwidths on RSVP tunnels to be used only as the UCMP weight without signalling the bandwidths in RSVP.

Examples

• The following example configures a targeted adjacency with a non-adjacent router.

  switch(config-te-rsvp-tunnel-tunnelABC)# tunneling ldp ucmp

• The following example configures the RSVP tunnel bandwidth.

  switch(config-te-rsvp-tunnel-tunnelABC)#bandwidth 20 gbps

• The following example disables signalling.

  switch(config-te-rsvp-tunnel-tunnelABC)#bandwidth signalling disabled