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[Srcomp] Section 3.4 Scalability Requirements

"Darren Dukes (ddukes)" <ddukes@cisco.com> Wed, 12 May 2021 11:06 UTC

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From: "Darren Dukes (ddukes)" <ddukes@cisco.com>
To: "srcomp@ietf.org" <srcomp@ietf.org>
Thread-Topic: Section 3.4 Scalability Requirements
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Subject: [Srcomp] Section 3.4 Scalability Requirements
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Below is the discussion text that we should include in this section:

The 32-bit variants of all proposals support this scale of prefix, adjacency and services at a node.

Each proposals 16-bit variant has some ability to support the required scale.  All proposals can encode at least 2^16 prefix, adjacency and service segments.  However each proposal has various ways of supporting some larger scale per node if required.

CRH 16-bit proposes the encoding of the ultimate segment in a TPF destination option instead of the CRH.  This supports service segments with greater scale.

VSID proposes the combination of multiple vSIDs, or the use of multiple SRv6 blocks.  This supports adjacency and service segments with greater scale.

CSID 16-bit variant uses a LIB for adjacency and service segments, the LIB allows local definition of SIDs longer than 16-bits when needed.  This supports adjacency and service segments with greater scale.

UIDSR – ShaoFu?

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