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RTG-DIR Issue 25: 4.2.2 Eligibility for Local Use of an SR Policy NLRI #27

Closed suehares closed 1 month ago

suehares commented 4 months ago

RTG-DIR Issue 25: 4.2.2 Eligibility for Local Use of an SR Policy NLRI

Text:/ 4.2.2. Eligibility for Local Use of an SR Policy NLRI

If one or more route targets are present and none matches the local BGP Identifier, then, while the SR Policy NLRI is valid, it is not usable on the receiver node./

Jeffrey: Does the route target have to match the local BGP identifier? Ketan (KT): Yes

Jeffrey: As long as the receiver is configured with a local RT that matches one of the advertised RTs, it should be fine, right? That is how VPN RT works and I suppose the same can be used here.

Ketan (KT): The semantics are different here.

Jeffrey: When should the BGP update stops being propagated if RT is used? Never? or should a matching RT be removed by each matching receiver and then the propagation stops when there is no RT left?

Ketan: Yes, it can do that using local configuration. See the next paragraph.

suehares commented 3 months ago

Added to Shepherd's comments on Routing Directorate Review (SR04-02)

suehares commented 2 months ago

If one or more route targets are present and none matches the local BGP Identifier, then, while the SR Policy NLRI is valid, it is not usable on the receiver node.

What does usable mean? Does it mean the route is able to be a candidate for Best path selection? Does it mean it is active in BGP RIB and gets reject in SRPM?

suehares commented 1 month ago

closed merged into https://github.com/ietf-wg-idr/draft-ietf-idr-sr-policy-safi/issues/32