Re: [mpls] Review and Consensus call on text from the MPLS Open DT on in-stack indicators
Rakesh Gandhi <rgandhi.ietf@gmail.com> Fri, 06 August 2021 14:01 UTC
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From: Rakesh Gandhi <rgandhi.ietf@gmail.com>
Date: Fri, 06 Aug 2021 10:00:40 -0400
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To: Loa Andersson <loa@pi.nu>
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Subject: Re: [mpls] Review and Consensus call on text from the MPLS Open DT on in-stack indicators
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Hi WG, One comment on the following text with <RG>: - We have a standardized associated channel, the GAL/GACH. We are not going to change the associated channel in anyway that breaks existing implementations. The ACH is found immediately after the label carrying the Bottom of Stack (BoS) bit. Currently, there is no defined method to carry multiple ACHs in the same MPLS packet. *GAL/GACH will only be an OAM or instrumentation tool and will not be used to carry meta-data with user-traffic. * <RG> The last sentence needs some clarification. The packet with GAL is punted out of the fast path in forwarding, so user-traffic does not carry it, so it makes sense. However, packets could carry GACH without GAL. The user-traffic could also carry a GACH without GAL if use-case makes sense. I am not sure we are ready to add this restriction just yet. Thanks, Rakesh On Thu, Aug 5, 2021 at 10:52 AM Loa Andersson <loa@pi.nu> wrote: > Working Group, MPLS Open DT, > > The week before IETF 111 the Open DT met and agreed upon a text on > "indicators". The terminology we use is that somewhere in the label > stack there is an indicator tell the processing node that a specific > packet needs a certain set of Forwarding Actions, for example some iOAM > action might be required. To support the forwarding action there is > often ancillary data with the packet. > > The text the DT produced is about the indicators, a companion text on > ancillary data will follow. > > The text was discussed in the Joint meeting and reported to the MPLS > working group at IETF 111. The Open DT itself can only propose, the text > is therefore now sent out to the working group for review and consensus > call. > > The proposed text is found at: > https://trac.ietf.org/trac/mpls/wiki/2021-07-22-agenda > > Please review the proposed text and comment on the MPLS wg mailing list > (mpls@ietf.org). > > We plan to keep the consensus call open until 2021-08-20. > > /Loa > Open DT Co-ordinator / MPLS wg co-chair > > > -- > > Loa Andersson email: loa@pi.nu > Senior MPLS Expert loa.pi.nu@gmail.com > Bronze Dragon Consulting phone: +46 739 81 21 64 > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls >
- [mpls] Review and Consensus call on text from the… Loa Andersson
- Re: [mpls] Review and Consensus call on text from… Toerless Eckert
- Re: [mpls] Review and Consensus call on text from… Kireeti Kompella
- Re: [mpls] Review and Consensus call on text from… Haoyu Song
- Re: [mpls] Review and Consensus call on text from… Toerless Eckert
- Re: [mpls] Review and Consensus call on text from… Haoyu Song
- Re: [mpls] Review and Consensus call on text from… Toerless Eckert
- Re: [mpls] Review and Consensus call on text from… Haoyu Song
- Re: [mpls] Review and Consensus call on text from… Toerless Eckert
- Re: [mpls] Review and Consensus call on text from… Loa Andersson
- Re: [mpls] Review and Consensus call on text from… bruno.decraene
- Re: [mpls] Review and Consensus call on text from… Rakesh Gandhi
- Re: [mpls] Review and Consensus call on text from… tom petch
- Re: [mpls] Review and Consensus call on text from… gregory.mirsky
- Re: [mpls] Review and Consensus call on text from… gregory.mirsky
- Re: [mpls] Review and Consensus call on text from… Toerless Eckert
- Re: [mpls] Review and Consensus call on text from… Stewart Bryant