Hi Susan,

Thanks for the review and comments. Have uploaded rev19 to address comments
received from you and other reviewers.

Please see inline for details.

On Sat, Nov 16, 2024 at 8:17 AM Susan Hares via Datatracker <
[email protected]> wrote:

> Reviewer: Susan Hares
> Review result: Not Ready
>
> OPS-DIR review:
>
> Status: Not ready - due to 6 authors.
>
> Summary: Excellent technical text with clear descriptions.
> The sequence number mechanism is a nifty algorithm.
>
> Issue: 6 authors.
> There are no technical issues and all operational issues have been
> carefully considered.
>
> Technical NITS:
> 1) Count to infinity
>
> Would an implementer or Wen Lin (a reviewer)
> familiar with the RFC7432 and this code change,
> check for the possibility of a "count to infinity
> using this assignment of sequence numbers?
>
> This is a NIT because I could not think of a network
> deployment and change where this might be possible, but the
> authors or Wen Lin might want to consider it.
> (By the way, the text is so good that I can
> spot this as a potential issue).
>

[NM]: I did discuss this with other co-authors. We concluded that with the
existing mechanism for duplicate address detection in place, this can only
happen when the actual number of legitimate moves for a host exhausts the
32 bit / 4 billion sequence number space. For a host that moves every
minute, this amounts to ~7K years. In other words, not likely to run into.
If at all, we still decide to specify a handling for sequence number
wrapping in future, we should be able to add this to 7432bis draft.


>
> 2. Minor editorial NITs:
>
> Please note that the editorial work on this text is excellent.
> These NITs are very minor tweaks.
>
> Section 2:
> text-1: @EVPN-IRB: /
>    *  EVPN-IRB: A BGP-EVPN distributed control plane based integrated
>       routing and bridging fabric overlay discussed in [RFC9135]/
>
> What's wrong - This sentence needs a period at the end of the sentence.
>

[NM]. corrected in rev19


>
> text-2: @  EVPN PE: /  An EVPN PE is
>       typically also an IP or MPLS tunnel end-point for overlay VPN flow/
>
> What's wrong - This sentence needs a period at the end of the sentence.
>

[NM]. corrected in rev19


>
> Section 6.6: @last paragraph, explicit is incorrectly spelled (explcit)
>
> Section 7: 1 and 2nd paragraph
>
> text:/ *  An overlay IP subnet may still be stretched across the underlay
>       fabric; however, intra-subnet traffic across the stretched overlay
>       is never bridged./
>
> This is a borderline misuse of ";" as the sentences are not really
> parallel clauses.
>

[NM]. corrected in rev19


>
> text-2: / In the absence of host MAC routes, the sequence number mobility
> Extended
>    Community specified in [RFC7432], section 7.7, MAY be associated with
>    a /32 or /128 host IP prefix advertised via EVPN Route Type 5./
>
> What's wrong - use of commas obscures the text.
>
> text-2: / In the absence of host MAC routes, the sequence number mobility
> Extended
>    Community specified in [RFC7432] in section 7.7 MAY be associated with
>    a /32 or /128 host IP prefix advertised via EVPN Route Type 5.
>

[NM]. corrected in rev19

Thanks,
Neeraj
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