Subject: [spring] YANG data model for BGP Segment Routing Extensions

From: Mukul Srivastava <[email-masked]>
Date: Tue, 23 Jul 2019 18:32:09 +0000

Dear authors

After going through the draft, I have following comments regarding yang modeling for BGP EPE SIDs.

Comments:

  *   BGP Peer Set SID configuration. – Currently configuration of BGP Peer Set SID is not present in the draft. The “BGP Peer Set SID configuration”  should be configured at the global BGP level and have a leaf for SET name (as string) and a SID  label. Please note that it is not specific to any BGP group or peer. This is a global BGP level configuration.

  *   “epe-config” has been added as BGP neighbor and BGP group yang extension. I think this should only be added to the neighbor extension not as group extension because EPE SID is applicable only for a given BGP Session. It has no meaning at the BGP group level.

  *   When Node SID and ADJ SID are assigned to a SET, it can be associated with “weight”.  So “grouping epe-config” should have a leaf to configure SET weight. This value (SET weight) should be assigned only when NODE or ADJ SID is part of the SET. Same comment is applicable for Similarly the “list peer-adjacency” for ADJ SID

Will appreciate your input on above comments.

Thanks
Mukul