Subject: [CCAMP] Clarification regarding 'connectivity matrix'

From: Zhenghaomian <[email-masked]>
Date: Wed, 18 Sep 2019 20:01:09 +0000

Hi, Authors,

I have been aware of a new work emerged without showing in the list archive, as https://tools.ietf.org/id/draft-vijay-ccamp-ospf-otn-timeslot-00.txt, which provide an extension on OSPF regarding the TLV encoding for tributary slot and connectivity matrix.

I am writing to request clarification on the term 'connectivity matrix', from the existing work such as TE YANG model (refer to RFC 7580 or figure 4 in https://tools.ietf.org/pdf/draft-ietf-teas-te-topo-and-tunnel-modeling-04.pdf), the term is used to describe the connection relationship within a node, i.e., between the node ingress and node egress, which has nothing to do with the link; while for this draft, the proposal encoded the link pair information, which should be inter-node relationship instead of node attributes. It seems we have ambiguity on interpreting the term, and we should align with the meaning before deciding whether to extend such TLV or not. So it would be appreciated if you can help on clarification, thanks.

Haomian Zheng
PhD, Research Engineer & Standard Delegate
Transport & Access Networking
Huawei Technologies Co., Ltd.
Tel : +86 13066975206
Email : [email-masked]

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