• Author : Nandan Saha


BGP Link State (BGP-LS) Producer for IS-IS LSDB

Description The BGP-LS extension (RFC7752/to be obsoleted by draft-ietf-idr-rfc7752bis) allows IGP (OSPF/IS-IS) link state database information to be injected into BGP. This is typically used in deployments where some external component, (like a controller or Path Computation Engine) can do centralized path computations by learning the entire IGP topology through BGP-LS. The controller can then communicate the computed paths based on the BGP-LS updates to the head end device in the network. The mechanism used by the controller to communicate the computed TE paths is outside the scope of this document. Using BGP-LS instead of an IGP peering with the...
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Segment Routing Traffic Engineering Policy (SR-TE) multi-agent routing model TOI

Description 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. For a detailed description of the functional behavior please refer to the “Description” section of EOS 4.21.0F TOI for SR-TE in single agent routing model. Platform...
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IS-IS hostname

The IS-IS hostname feature allows the use of a human readable string to represent the symbolic name of an IS-IS router, and exchange a mapping between IS-IS system IDs and IS-IS hostnames. It also changes the output of IS-IS show commands, to show the IS-IS hostname in place of system IDs if the corresponding IS-IS hostname is known. However syslogs still use IS-IS system IDs and not the IS-IS hostname. RFC5301 describes the mechanism involved in exchanging the IS-IS hostnames using IS-IS Link State PDUs. Configuration By default if there’s a hostname configured on the switch, it is used as the IS-IS...
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