Reviewer: Dale Worley
Review result: Ready with Nits
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Document: draft-ietf-teas-gmpls-resource-sharing-proc-07
Reviewer: Dale R. Worley
Review Date: 23 Jan 2017
IETF LC End Date: 17 Jan 2017
IESG Telechat date: 2 Feb 2017
Summary:
This draft is basically ready for publication, but has nits
that should be fixed before publication.
There remain a few editorial items:
2. Conventions Used in This Document
The reader is assumed to be familiar with the terminology in
[RFC3209], [RFC3473], [RFC4872], [RFC4873] and [RFC4427].
That is a significant help to the reader, but it's also rather
intimidating! Is there a way to point out that 4427 is specific to
recovery?
3.1.1. 1+R Restoration
Unlike a protecting LSP which is set up before the failure, a
restoration LSP is set up per need basis, after the failure.
Probably better to change "per need basis" to "when needed".
3.2. Resource Sharing By Restoration LSP
"By" generally should not be capitalized in titles, as it is a
preposition.
+-----+ +-----+
| F +------+ G +--------+
+--+--+ +-----+ |
| |
| |
+-----+ +-----+ +--+--+ +-----+ +--+--+
| A +----+ B +-----+ C +--X---+ D +-----+ E |
+-----+ +-----+ +-----+ +-----+ +-----+
Figure 3: Resource Sharing in 1+R Recovery Scheme
[...] Nodes A and B
reconfigure the resources to set up the restoration LSP by sending
cross-connection command to the data plane.
In the recovery scheme employing revertive behavior, after the
failure is repaired, the resources on nodes A and B need to be
reconfigured to set up the working LSP. The traffic is then
reverted
back to the original working LSP.
It's not clear to me why nodes A and B are reconfigured and/or do the
reconfiguring. Any "global" reconfiguring would be driven by the
head-end A alone, I think. Any "local" reconfiguring would be done
by
C and possibly E. Though perhaps there is reconfiguring that must be
done along the entire path, but that would be attributed to A, B, C,
F, G, and E together. I suspect there is a trivial editorial error
here...
[END]