Subject: [Srcomp] REQ-8-1-INTERWORKING-DOMAINS-00

From: <[email-masked]>
Date: Sat, 1 Aug 2020 11:09:22 +0800 (CST)

Short Name: Interworking Across SR Domain Boundaries.

Description: An E2E SR path may across multiple domains and each domain has different SID encapsulation style.

Rational: SRv6 is deployed in the network gradually, there maybe already deployed calssical 128-bits based SID SRv6 solution in some domains, and may also deployed SR-MPLS in other domains, thus if an E2E SR path across multiple domains, the new compression-based SID SRv6 solution MUST support interworking with other classical SRv6 and SR-MPLS domains in the network. If the new compression-based SID SRv6 provide multiple compression length, eg, 32, 16, etc, multiple domains each with different compression length MUST also support interworking between them. Note that the classical 128-bits SID based SID SRv6 solution can be considered to have a compression length of 128.

Metric: The solution must provide method to interwork with classical SRv6 or SR-MPLS domains, and interwork between domains with different compression length.

Regards,

PSF