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Cell Relay Retreat>MPLS WG Archive>month:2001-Jul> msg00123



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[Fwd: I-D ACTION:draft-pan-lsp-ping-00.txt]

  • From: Yakov Rekhter <yakov@juniper.net>
  • Date: Tue, 10 Jul 2001 15:30:48 -0700
  • cc: "Dave Cooper" <dcooper@gblx.net>, "mpls-list" <mpls@UU.NET>, "mpls-ops" <mpls-ops@mplsrc.com>

Eric,

> I'm still trying to  be sure I understand just what this  mechanism is to be
> used for.  
> 
> If a given LSP is working, and  was set up with RSVP-TE, this mechanism will
> allow you to verify that it is working.
> 
> If a given LSP is not working,  this mechanism does not provide you with any
> diagnostic information. 
> 
> So you can use it for two purposes:
> 
> - to test regularly whether an LSP is working
> 
> - to  eliminate  "LSP data  plane  outage" as  the  source  of a  particular
>   problem. 
> 
> This does seem useful.
> 
> I think though that draft-bonica-icmp-mpls is also an attempt to provide the
> testing  function, along  with  some diagnostic  capability,  but without  a
> dependence on a particular control  plane.  Do you see draft-pan-lsp-ping as
> being superior in some respect?

yes.

Yakov.