Hi Manav,
I think that the quote from RFC 5881 applies only to single-hop (and LAG too)
IPV4/IPv6 BFD, not to multi-hop or BFD over MPLS LSP. I’m very much interested
to learn about use case you have for multiple single hop BFD sessions.
Regards,
Greg
From: Manav Bhatia [mailto:[email protected]]
Sent: Tuesday, November 03, 2015 12:29 PM
To: Gregory Mirsky
Cc: [email protected]
Subject: Re: Multiple BFD sessions between the same pair of end-points
And pray what is the context? I presume its got something to do with the BFD WG
meeting. Would appreciate some details.
I have a counter example of when one may need multiple BFD sessions between the
same end-points, but i would like to hear the context before i muddy the waters.
Cheers, Manav
On Tue, Nov 3, 2015 at 7:56 AM, Gregory Mirsky
<[email protected]<mailto:[email protected]>> wrote:
Dear All,
I think that this paragraph from Section 2 of RFC 5881 prohibits multiple
single-hop BFD sessions between the same pair of end points:
Each BFD session between a pair of systems MUST traverse a separate
network-layer path in both directions. This is necessary for
demultiplexing to work properly, and also because (by definition)
multiple sessions would otherwise be protecting the same path.
Regards,
Greg
