Re: [trill] draft-ietf-trill-transport-over-mpls - WG LC (11/11 to 11/25)
Hi, I support the draft in this process, please see inline: This begins a 2 week WG LC for draft-ietf-trill-transport-over-MPLS (11/11/2017 to 11/25/2017). Please consider if this draft is ready for publication. In this consideration please consider: 1) Does TRILL need to run over MPLS? Some data centers are interconnected over MPLS. Does this capability aid in deployment of TRILL? [RP]: Yes to both questions. 2) Is this specification ready for publication? [RP]: I have no objection to it being published, but have some review comments below. From an high-level/overview perspective, it seems reasonably clear/complete in terms of providing a problem statement and specifying the technologies needed to resolve the problem statement. 3) Do you know of any problems with this specification? [RP]: a . I think the draft may need to be more clear on how it maps an incoming (control and/or data-plane) packet to a specific tenant in either approach. Are pseudo-wires/MPLS circuits shared between tenants? Specifically if two or more tenants have the same switch-id on the Rbridge side, how does the solution differentiate between them based on the incoming packet? b. How does multi-topology Trill fit into this draft? c. Typos in figures 2, 4. Under "Rbat2" on the left-side of each figure, the label should probably be "Tenant 2 Site 1" (as opposed to "Tenant 2 Site 2")? thanks, Ramkumar Susan Hares (co-chair, document shepherd) ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill
Re: [trill] draft-ietf-trill-transport-over-mpls - WG LC (11/11 to 11/25)
Andy: Thank you for letting me know about this problem. I will work with the authors to address it. sue From: trill [mailto:trill-boun...@ietf.org] On Behalf Of Andrew G. Malis Sent: Tuesday, November 21, 2017 2:21 PM To: Susan Hares Cc: Donald Eastlake; Alia Atlas; Jon Hudson; trill@ietf.org Subject: Re: [trill] draft-ietf-trill-transport-over-mpls - WG LC (11/11 to 11/25) Sue, I found that this draft has several places where interoperability between implementations could be difficult because there are several implementation choices that can be made, and the draft doesn’t make any particular recommendations or require any of the choices to be implemented. 1. There are two models defined, the VPLS and VPTS models, and the draft doesn’t recommend which to use for each of the two problem statements. If it were me, I would recommend the VPTS model as the default, as it is an emulated TRILL service. 2. When using the VPTS model, section 4.3 says that either the PPP or Ethernet encapsulation from RFC 7173 can be used, and makes no recommendation between them. However, RFC 7173 defines the PPP encapsulation as the chosen default, and that encapsulation should be used here as well. I recommend that these be addressed before the draft is sent to the IESG. Thanks, Andy On Sat, Nov 11, 2017 at 7:21 PM, Susan Hares wrote: This begins a 2 week WG LC for draft-ietf-trill-transport-over-MPLS (11/11/2017 to 11/25/2017). Please consider if this draft is ready for publication. In this consideration please consider: 1) Does TRILL need to run over MPLS? Some data centers are interconnected over MPLS. Does this capability aid in deployment of TRILL? 2) Is this specification ready for publication? 3) Do you know of any problems with this specification? Susan Hares (co-chair, document shepherd) ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill
Re: [trill] draft-ietf-trill-transport-over-mpls - WG LC (11/11 to 11/25)
Sue, I found that this draft has several places where interoperability between implementations could be difficult because there are several implementation choices that can be made, and the draft doesn’t make any particular recommendations or require any of the choices to be implemented. 1. There are two models defined, the VPLS and VPTS models, and the draft doesn’t recommend which to use for each of the two problem statements. If it were me, I would recommend the VPTS model as the default, as it is an emulated TRILL service. 2. When using the VPTS model, section 4.3 says that either the PPP or Ethernet encapsulation from RFC 7173 can be used, and makes no recommendation between them. However, RFC 7173 defines the PPP encapsulation as the chosen default, and that encapsulation should be used here as well. I recommend that these be addressed before the draft is sent to the IESG. Thanks, Andy On Sat, Nov 11, 2017 at 7:21 PM, Susan Hares wrote: > This begins a 2 week WG LC for draft-ietf-trill-transport-over-MPLS > (11/11/2017 to 11/25/2017). Please consider if this draft is ready for > publication. In this consideration please consider: > > > > 1) Does TRILL need to run over MPLS? Some data centers are > interconnected over MPLS. Does this capability aid in deployment of TRILL? > > 2) Is this specification ready for publication? > > 3) Do you know of any problems with this specification? > > > > > > Susan Hares > > (co-chair, document shepherd) > > ___ > trill mailing list > trill@ietf.org > https://www.ietf.org/mailman/listinfo/trill > > ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill
Re: [trill] draft-ietf-trill-transport-over-mpls - WG LC (11/11 to 11/25)
Support as a Co-Author. I think this draft is ready for publication. Datacenter Interconnection is critical part of any Data center design, this draft provides a solution where trill DCI works over MPLS network. Regards, Umair On Nov 12, 2017 5:51 AM, "Susan Hares" wrote: This begins a 2 week WG LC for draft-ietf-trill-transport-over-MPLS (11/11/2017 to 11/25/2017). Please consider if this draft is ready for publication. In this consideration please consider: 1) Does TRILL need to run over MPLS? Some data centers are interconnected over MPLS. Does this capability aid in deployment of TRILL? 2) Is this specification ready for publication? 3) Do you know of any problems with this specification? Susan Hares (co-chair, document shepherd) ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill ___ trill mailing list trill@ietf.org https://www.ietf.org/mailman/listinfo/trill
