Subject: [Srcomp] REQ-8-20-SRv6-to-CompSRv6-00

From: <[email-masked]>
Date: Thu, 20 Aug 2020 15:33:20 +0800 (CST)

Short Name: Migration from Classical SRv6 to Compression based SRv6.

Description: The compression mechanism must support upgrade the existing classical SRv6 node to the compression based SRv6 node smoothly.

Rational: SRv6 is deployed in the network gradually, there maybe already deployed calssical 128-bits based SID SRv6 in some domains. When upgrading the existing classical SRv6 node to the compression based SRv6 node, it must not withdraw the existing IPv6 address planning, SRv6 Locator and SID planning, and not cause interoperability problem with legacy SRv6 devices both for control plane and data plane, to minimize the impaction on the existing service. A compressed SR path traversing both classical SRv6 nodes and compression based SRv6 nodes must be supported.

Metric: The compression mechanism must support all the feature sets of the classical SRv6, and the new feature must not cause interoperability problem with legacy SRv6 devices.  

Category: Migration