Viewing PTP Settings and Status

To display general Precision Time Protocol (PTP) information, use the show ptp command.

switch# show ptp
PTP Mode: gptp - Generalized PTP Clock
Clock Identity: 2001:0DB8:73:ff:ff:26:fd:90
Grandmaster Clock Identity: 2001:0DB8:96:ff:fe:6c:ed:02
Number of slave ports: 1
Number of master ports: 6
Slave port: Ethernet33
Mean Path Delay (nanoseconds): 718
Steps Removed: 1
Neighbor Rate Ratio: 1.00000007883
Rate Ratio: 1.00000007883
Interface  State    ASTime  Since LastNeighbor Mean        Path        Residence 
Capable    Changed  Rate    Ratio              Delay (ns)  Time (ms) 
---------  -------- ------- ------------------ ----------- ----------- --------- 
Et1        Disabled No      Never              1.0         00
Et2        Disabled No      Never              1.0         00
Et3        Disabled No      Never              1.0         00
Et4        Disabled No      Never              1.0         00
Et5        Disabled No      Never              1.0         00
Et6        Disabled No      Never              1.0         00
Et7        Master   Yes                        0:21:08     1.000000094200

To display PTP clock properties, use the Displaying PTP Clock Properties command.

switch# show local-clock time-properties
Current UTC offset valid: False
Current UTC offset: 0
Leap 59: False
Leap 61: False
Time Traceable: False
Frequency Traceable: False
PTP Timescale: False
Time Source: 0x0
switch#

To display information about foreign masters (PTP sources not designated as the switchs master from which the switch has received sync packets), use the show ptp foreign-master-record command.

switch# show ptp foreign-master-record
No Foreign Master Records
switch#

To display PTP information for specified interfaces, use the show ptp interface command.

switch# show ptp interface
Interface Ethernet1
PTP: Disabled
Port state: Disabled
Sync interval: 1.0 seconds
Announce interval: 2.0 seconds
Announce interval timeout multiplier: 3
Delay mechanism: end to end
Delay request message interval: 32.0 seconds
Transport mode: ipv4

Interface Ethernet5
PTP: Disabled
Port state: Disabled
Sync interval: 8.0 seconds
Announce interval: 2.0 seconds
Announce interval timeout multiplier: 5
Delay mechanism: peer to peer
Peer delay request message interval: 8.0 seconds
Peer Mean Path Delay: 0
Transport mode: ipv4

switch#

To display PTP interface counters for specified interfaces, use the show ptp interface counters command.

switch# show ptp interface ethernet 5 counters 
Interface Ethernet5
Announce messages sent: 0
Announce messages received: 0
Sync messages sent: 0
Sync messages received: 0
Follow up messages sent: 0
Follow up messages received: 0
Delay request messages sent: 0
Delay request messages received: 0
Delay response messages sent: 0
Delay response messages received: 0
Peer delay request messages sent: 0
Peer delay request messages received: 0
Peer delay response messages sent: 0
Peer delay response messages received: 0
Peer delay response follow up messages sent: 0
Peer delay response follow up messages received: 0
switch# 

To display the local PTP clock and offset, use the show ptp local-clock command.

switch# show ptp local-clock
PTP Mode: Boundary Clock
Clock Identity: 0x00:1c:73:ff:ff:1e:83:24
Clock Domain: 1
Number of PTP ports: 24
Priority1: 128
Priority2: 128
Clock Quality:
   Class: 248
   Accuracy: 0x30
   OffsetScaledLogVariance: 0xffff
Offset From Master: 0
Mean Path Delay: 0
Steps Removed: 0
switch#

To display the PTP clocks master and grandmaster identity and configuration, use the show ptp masters command.

switch# show ptp masters
Parent Clock:
Parent Clock Identity: 0x00:1c:73:ff:ff:00:72:40
Parent Port Number: 0
Parent IP Address: N/A
Observed Parent Offset (log variance): N/A
Observed Parent Clock Phase Change Rate: N/A

Grandmaster Clock:
Grandmaster Clock Identity: 0x00:1c:73:ff:ff:00:72:40
Grandmaster Clock Quality:
   Class: 248
   Accuracy: 0x30
   OffsetScaledLogVariance: 0xffff
   Priority1: 128
   Priority2: 128
switch#

To display the list of up to 100 recorded entries of offset from master, mean path delay and skew values, the current PTP mode, whether or not the feature is enabled, the number of entries displayed, and the configured thresholds for each metric, use the show ptp monitor command. Entries are sorted by the system time at which the value was calculated, starting with the most recent data at the top.

switch# show ptp monitor 
PTP Mode: Boundary Clock 
Ptp monitoring: enabled 
Number of entries: 5 
Offset from master threshold: 1500 
Mean path delay threshold: not configured 
Skew threshold: 0.5 
Interface  Time                          Offset from   Mean Path    Skew 
                                         Master (ns)   Delay (ns) 
---------- ----------------------------- ------------ ------------- ----------- 
Et8        21:23:12.901 UTC Feb 22 2018  71            5849         1.003159918 
Et1        21:23:12.901 UTC Feb 22 2018  113           3672         1.004990621 
Et2        21:23:12.901 UTC Feb 22 2018  706           7799         1.002744199 
Et1        21:23:12.901 UTC Feb 22 2018  803           5861         1.003432049 
Et1        21:23:12.901 UTC Feb 22 2018  610           3415         0.998974658

To display PTP IP source information, use the show ptp source ip command.

switch# show ptp source ip
PTP source IP: 10.0.2.1
switch#