Tag :: BGP

In a Service Provider (SP) network, a Provider Edge (PE) device learns virtual private network (VPN) paths from remote PEs and uses the Route Target (RT) extended communities carried by those paths to determine which customer Virtual Routing and Forwarding (VRF) the paths should be imported into (from where they can be subsequently advertised to Customer Edge (CE) devices).

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion. This document serves as a reference guide for: Routing protocol attributes , Operators for comparing and modifying attributes

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion. This document serves as a reference guide for Bgp agent points of application:

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion. This document serves as a reference guide for Isis agent points of application Configuration of RCF.

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.

Routing control functions (RCF) is a language that can be used to express route filtering and attribute modification logic in a powerful and programmatic fashion.

Segment Routing Traffic Engineering Policy (SR-TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend to steer traffic along any path without maintaining per flow state in every node. A headend steers traffic into an “SR Policy”. EOS 4.21.0F added support for SR Policy for the MPLS dataplane (SR-MPLS) for Type-1 SR Policy segments in single agent routing model. EOS 4.22.1F adds support for SR-TE in multi-agent routing model.

Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend

This feature enables the BGP additional-path send configuration only for routes whose prefixes match a prefix list. The goal is to advertise multiple paths for a specific set of routes.

A new configuration command label local-termination explicit-null under BGP LU address family allows BGP LU speakers to send explicit-null labels for prefixes for which the router is a terminating LSP node. The prefix is expected to be originating locally (via network command).

In EOS, BGP creates different update groups based on the outbound configuration. Different route maps or Routing

This command stores and displays a list of failed BGP connection attempts for each peer. This may be particularly

Support for negotiating and receiving IPv6 unicast and IPv6 labeled unicast (6PE) updates from a BGP peer.

Currently, EOS supports the receiving and transmitting of BGP Flowspec rules. Rules received can be installed locally as ACLs and/or transmitted to other BGP peers/route reflectors. EOS relies on external controllers to inject these flowspec rules. The feature will allow flowspec rules to be defined via CLI in a similar fashion as traffic-policies is currently done. These policies would then be redistributed into BGP. Once redistributed, the rules can be advertised to other BGP peers and optionally installed locally on the configured system.

The aggregate address minimum contributors feature adds the capability to specify a minimum number of contributor routes that must be present and advertisable in order for the BGP speaker to generate the route for the aggregate address.

BGP address aggregation was previously only supported for IPv4 and IPv6 unicast address families. Equivalent BGP

This document describes the Bgp Peer Flap Damping feature which allows session damping for peers with bfd enabled.

This document describes the route Flap Damping feature in multi-agent BGP.

BGP Monitoring Protocol (BMP) allows a monitoring station to connect to a router and collect all of the BGP announcements received from the router’s BGP peers. The announcements are sent to the station in the form of BMP Route Monitoring messages generated from path information in the router’s BGP Adj-Rib-In tables.

EOS supports configuring and associating communities on static routes. These are carried into BGP on redistribution. 

EOS 4.23.1F introduces the ability to configure the color extended community in route map set clauses and in an

In EOS-4.31.2F ipv6 link-local next-hops can now be configured in BGP through RCF (Routing Control Functions). On the advertising BGP agent an ipv6 link-local next-hop is configured on the outbound policy function. The receiving BGP agent reads this link-local next-hop and automatically assigns the interface from which the BGP path was sent.

This feature extends link bandwidth extended community deletion mechanism, which previously always required

This feature introduces a new CLI command (agent Bgp snapshot mrt received routes [ VRF ] FILE) which generates an MRT file containing the peers, prefixes and path attributes received by a switch running multi-agent routing m

BGP Monitoring Protocol (BMP) allows a monitoring station to connect to a router and collect all of the BGP announcements received from the router’s BGP peers. The announcements are sent to the station in the form of BMP Route Monitoring messages generated from path information in the router’s BGP internal tables. A BMP speaker may choose to send either Adj-Rib-In routes, or Loc-Rib routes (as defined by RFC9069), or both.

The route map feature in BGP allows filtering and manipulating BGP path information. It combines set statements with

Unequal cost multi path (UCMP) for BGP is a mechanism for forwarding ECMP route traffic using weights, with which the

This feature allows customers to configure BFD intervals on a per BGP neighbor basis. We also have existing support for the configuration of BFD intervals on a per interface basis and the configuration of BFD intervals globally on the entire device.

In the ribd routing protocol model, the “maximum paths … ecmp …” command allows restricting the number of BGP

BGP routing information often contains more than one path to the same destination network. The BGP best-path selection algorithm determines which of these paths should be considered as the best path to that network

Configuring the IGP cost for tunnels is a feature that allows influencing the BGP best path selection for routes

Unequal Cost Multi Path (UCMP) is a mechanism for forwarding traffic for an ECMP route by using a ratio of weights

Default routing protocols model will be set to multi-agent in 4.30.1. Note that the default value is only used if a value is not specified in startup-config.

The feature will provide the ability to error disable local interfaces in a BGP VPWS pseudowire when the remote interface is shutdown or whenever we do not receive a response from BGP.

VRF redirection often requires matching packets’ source addresses against one or more sets of IP prefixes.  This can become difficult to manage when the prefix sets need to be consistently maintained on several devices and either change too frequently or are very large.  When the prefixes for the prefix sets are learned by BGP, this feature provides an alternative to maintaining unwieldy sets of statically configured IP prefixes.

This feature is used to add VXLAN support for local-proxy-arp, Previously, when both “ip local-proxy-arp” and VXLAN is configured for a VLAN interface, and the router received an ARP request with an IP address within the same subnet as the router, the router replied with the interface physical (or virtual-router if VARP is configured) mac address for requests that are received on a local (front-panel) port. This feature extends the behavior to include the VXLAN tunneled ARP requests.

Wildcard-AS route target import for MAC VRFs enables simplified route target configuration in EVPN VXLAN deployments. When importing routes into MAC VRFs (VLAN-based or VLAN-aware-bundle), the Autonomous System (AS) portion of the route target can be replaced with a wildcard, so that only the Local Administrator value is compared during route target matching.