Re: Two new drafts on (micro-)BFD over MC-LAG interfaces
Jeffrey Haas <jhaas@pfrc.org> Mon, 11 April 2016 17:19 UTC
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Date: Mon, 11 Apr 2016 13:23:32 -0400
From: Jeffrey Haas <jhaas@pfrc.org>
To: Greg Mirsky <gregimirsky@gmail.com>
Subject: Re: Two new drafts on (micro-)BFD over MC-LAG interfaces
Message-ID: <20160411172332.GA22064@pfrc.org>
References: <7347100B5761DC41A166AC17F22DF11221A3CCED@eusaamb103.ericsson.se> <F73A3CB31E8BE34FA1BBE3C8F0CB2AE28C1F040F@SZXEMA510-MBX.china.huawei.com> <CAG1kdojp7Km16YDiwjvPKwRNjbvBWOkqpccRsEDCn8Q8BuV0Qg@mail.gmail.com> <7347100B5761DC41A166AC17F22DF11221A40584@eusaamb103.ericsson.se> <CAG1kdoibVBWsga3K88MGbZAFSbD_2q0efea_8aEKd_hN+CV53w@mail.gmail.com> <7347100B5761DC41A166AC17F22DF11221A40773@eusaamb103.ericsson.se> <D32D53C8.13B077%rrahman@cisco.com> <CA+RyBmW3nDxMphGaJ2eThZ3fs4zvD5D-9kiJBVSTzPoApkWqgA@mail.gmail.com>
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Cc: "draft-tanmir-rtgwg-bfd-mc-lag-ip@tools.ietf.org" <draft-tanmir-rtgwg-bfd-mc-lag-ip@tools.ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, "Alia Atlas (akatlas@gmail.com)" <akatlas@gmail.com>, "Reshad Rahman (rrahman)" <rrahman@cisco.com>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>, "rtg-bfd-chairs@ietf.org" <rtg-bfd-chairs@ietf.org>
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Greg, This is more of a general comment on discussions from the development from RFC 7130 than any specific comment on your draft. On Fri, Apr 08, 2016 at 11:43:18AM -0700, Greg Mirsky wrote: > yes, link local multicast may be used in MC-LAG scenario. The draft states > that it MAY be used while the broadcast has SHOULD normative. But we are > all open to the discussion. During our discussions across multiple vendors, including some hardware vendors, it was determined that attempts to exercise the layer 3 mechanisms would vary significantly across implementations depending on how packets were encapsulated. Multicast in particular provided some problematic issues for us beyond the initial bootstrapping phase of LAG for BFD wherein we might not have ARP completed. My recommendation is to proceed with your drafts with similar caution. Try to stay as true to pure IP as possible to best insure the L3 data paths are exercised across implementations from various vendors. -- Jeff (speaking as an individual contributor)
- Two new drafts on (micro-)BFD over MC-LAG interfa… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Jeffrey Haas
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Ashesh Mishra
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Jeff Tantsura
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Ashesh Mishra
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Reshad Rahman (rrahman)
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Jeffrey Haas
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Shah, Himanshu
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Mach Chen
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Manav Bhatia
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Mach Chen
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Manav Bhatia
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Reshad Rahman (rrahman)
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Reshad Rahman (rrahman)
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Manav Bhatia
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Greg Mirsky
- Re: [mpls] Two new drafts on (micro-)BFD over MC-… Greg Mirsky
- Re: [mpls] Two new drafts on (micro-)BFD over MC-… Manav Bhatia
- Re: [mpls] Two new drafts on (micro-)BFD over MC-… Manav Bhatia
- RE: [mpls] Two new drafts on (micro-)BFD over MC-… Gregory Mirsky
- RE: [mpls] Two new drafts on (micro-)BFD over MC-… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Jeffrey Haas
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky
- Re: Two new drafts on (micro-)BFD over MC-LAG int… Glen Kent
- RE: Two new drafts on (micro-)BFD over MC-LAG int… Gregory Mirsky