Subject: [sfc] draft-quinn-sfc-nsh: path and metada

From: Sunil Vallamkonda <[email-masked]>
Date: Tue, 24 Mar 2015 15:02:16 +0000

Hi Paul,

Re: draft-quinn-sfc-nsh-07

(a)  Sec. 3.5.1 Optional Variable Length Metadata: I propose the Type field to contain flags to indicate if a particular TLV metadata can be: [DD] do not discard, [DO] do not overwrite, for downstream nodes in a chain.

(b)  The Sec. 3.3 Service Path Header - SPI: identifies service path. Similarly to include a reverse-path-id for the MDType cases would enable nodes to make decision and monitor, as necessary.

Thank you,
Sunil.