You are right in that there is no assumption that all SRv6 locators in a domain
are allocated from the same block. Therefore knowing the blocks used in the
domain is useful.
The IGP drafts covers the advertisement of the B and N parts of the locally
configured locator on the node
To solve this problem, before starting 16.3, it is possible that all ABR
routers (virtual endpoints) should update the cost of routes for ABRS (if
these routes exist in the backbone area) from all virtual neighbors in the
transit area, regardless of whether these costs have been improved
We have submitted a draft that describes the Arista algorithm for computing
This draft is informational and we are not proposing that this transition to
the standards track.
If the working group chooses to do further work based on this, we have no
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Link State Routing WG of the IETF.
Title : IS-IS Extension to Support Segment Routing over IPv6
Authors : Peter Psenak