Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis
Eric C Rosen <erosen@juniper.net> Thu, 24 March 2016 18:14 UTC
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Cc: "idr@ietf.org" <idr@ietf.org>, BESS <bess@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Subject: Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis
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On 3/24/2016 11:17 AM, bruno.decraene@orange.com wrote: > I don't see why the IETF would want to create a bis which is not compatible with the original RFC, It's typical in a bis draft to remove features that haven't been used. > especially since this incompatibility may be very disruptive in existing networks. My belief is that existing deployments don't use or support the multiple labels feature, and that any attempt to use it as specified in RFC3107 will itself be disruptive to existing networks, because it will have interoperability issues and unpredictable results. Adding the "multiple labels" capability is a way to make the feature deployable without causing disruption. > "As far as I know" all the implementations claim to be compliant with RFC 3107, i.e. are expected to be able to receive multiple labels. I'm quite sure you have deployed implementations, from several prominent vendors, that will not properly handle this case. If you do have a deployed implementation that can receive multiple labels, what would you expect it to do with those labels? RFC 3107 doesn't say anything about what to do in this case, it just provides an encoding. Have you ever tried to use the "multiple labels" feature?
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Eric C Rosen
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Eric C Rosen
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Robert Raszuk
- Re: [mpls] [Idr] [bess] draft-rosen-mpls-rfc3107b… Acee Lindem (acee)
- Re: [mpls] [Idr] [bess] draft-rosen-mpls-rfc3107b… Robert Raszuk
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Eric C Rosen
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Robert Raszuk
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Eric C Rosen
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis Eric C Rosen
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- [mpls] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [bess] draft-rosen-mpls-rfc3107bis bruno.decraene
- Re: [mpls] [Idr] draft-rosen-mpls-rfc3107bis Jeffrey Haas