Re: [ippm] Opsdir last call review of draft-ietf-ippm-ioam-direct-export-08
Linda Dunbar <linda.dunbar@futurewei.com> Tue, 14 June 2022 16:32 UTC
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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: Tal Mizrahi <tal.mizrahi.phd@gmail.com>
CC: "ops-dir@ietf.org" <ops-dir@ietf.org>, "draft-ietf-ippm-ioam-direct-export.all@ietf.org" <draft-ietf-ippm-ioam-direct-export.all@ietf.org>, IETF IPPM WG <ippm@ietf.org>, Last Call <last-call@ietf.org>, Martin Duke <martin.h.duke@gmail.com>
Thread-Topic: Opsdir last call review of draft-ietf-ippm-ioam-direct-export-08
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Date: Tue, 14 Jun 2022 16:32:27 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ippm/abc7rgeGvGmbNs_BMxzpopyKzj8>
Subject: Re: [ippm] Opsdir last call review of draft-ietf-ippm-ioam-direct-export-08
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Tal, Thank you very much for addressing my comments. Your update is very helpful. I am clearing the NITs. I think the document is READY for publication. Linda -----Original Message----- From: Tal Mizrahi <tal.mizrahi.phd@gmail.com> Sent: Tuesday, June 14, 2022 1:49 AM To: Linda Dunbar <linda.dunbar@futurewei.com> Cc: ops-dir@ietf.org; draft-ietf-ippm-ioam-direct-export.all@ietf.org; IETF IPPM WG <ippm@ietf.org>; Last Call <last-call@ietf.org>; Martin Duke <martin.h.duke@gmail.com> Subject: Re: Opsdir last call review of draft-ietf-ippm-ioam-direct-export-08 Hi Linda, Thanks for the comments. Please see the response below. Cheers, Tal. On Tue, Jun 14, 2022 at 6:12 AM Linda Dunbar via Datatracker <noreply@ietf.org> wrote: > > Reviewer: Linda Dunbar > Review result: Has Nits > > I have reviewed this document as part of the Ops area directorate's > ongoing effort to review all IETF documents being processed by the > IESG. These comments were written primarily for the benefit of the Ops area directors. > Document editors and WG chairs should treat these comments just like > any other last call comments. > > This document specifies an IOAM encoding (Direct Export Option) to > trigger IOAM data to be directly exported or locally aggregated > without being pushed into in-flight data packets. > > I think the document is READY with some nits: > >From the operation point of view, can the "entity" that the IOAM is > >directed by > DEX Option send an explicit request to all the nodes for the IOAM to > be exported to them? instead of asking the DEX encapsulating node to > encode the DEX in some data packet? If not, why? If yes, can you add a > comparison of those two approaches? Something similar can be done by having the encapsulating node send a probe packet, as mentioned in the draft: "probe packets that are generated by the IOAM encapsulating node". I suggest to add a slightly clearer explanation, as follows: OLD: An IOAM encapsulating node configured to incorporate the DEX option encapsulates (possibly a subset of) the packets it forwards with the DEX option, and MAY export and/or collect the requested IOAM data immediately. Only IOAM encapsulating nodes are allowed to add the DEX option type to a packet. NEW: An IOAM encapsulating node configured to incorporate the DEX option encapsulates (possibly a subset of) the packets it forwards with the DEX option, and MAY export and/or collect the requested IOAM data immediately. Only IOAM encapsulating nodes are allowed to add the DEX option type to a packet. An IOAM encapsulating node can generate probe packets that incorporate the DEX option. These probe packets can be generated periodically or on-demand (for example triggered by the management plane). The specification of such probe packets is outside the scope of this document. > > Thank you very much > Linda Dunbar > > >
- [ippm] Opsdir last call review of draft-ietf-ippm… Linda Dunbar via Datatracker
- Re: [ippm] Opsdir last call review of draft-ietf-… Tal Mizrahi
- Re: [ippm] Opsdir last call review of draft-ietf-… Linda Dunbar