The MPLS WG Archive

["Thomas D. Nadeau" <tnadeau@cisco.com>]

         Well, you MAY LSP ping all of those FECs if you wish and at
whatever rate you (i.e.: an operator) feels comfortable with. No one
is "strongly suggesting" that you do so at 1 packet per second.

         --Tom


>But the same is true for MPLS-ping. You also need to ping all those FECs.
>
>-Shahram
>
> > -----Original Message-----
> > From: George Swallow [mailto:swallow@cisco.com]
> > Sent: Wednesday, March 20, 2002 5:59 PM
> > To: Shahram Davari
> > Cc: 'Thomas D. Nadeau'; 'mpls@uu.net'; swallow@cisco.com
> > Subject: Re: Y.1711 requirements from IETF
> >
> >
> > > Where did you get this " ALL LSPs MUST" statement from? May
> > be you are
> > > reading a different Y.1711 than I have. All I can find are
> > the following
> > > statement:
> > >
> > > " ... It is strongly recommended that CV OAM packets be
> > generated on all LSPs
> > > (in order to detect all defects and potentially provide
> > protection against
> > > traffic leakage both in and out of LSPs). "
> >
> > I have one customer providing an IP VPN service who has >1500 PE
> > routers and probably well over a million LSPs.  Most of the LSPs
> > represent VPN connectivity can carry very little traffic.
> >
> > Would you "strongly recommend" that CV OAM packets be generated on all
> > their LSPs at a rate of 1 per second?  Can you point to *any*
> > currently deployed network other than those using MPLS solely for
> > traffic engineering where this would be a good idea?  If I'm carrying
> > the full internet routing table and using LDP downstream unsolicited
> > should every router generate 108,000 (the current number of routes) CV
> > OAM packets per second?
> >
> > Perhaps you should revisit this "strongly recommended"
> > recommendation.  Perhaps you should provide for generation of CV OAM
> > packets at rates other than 1  second.
> >
> > ...George
> >
> > ==================================================================
> > George Swallow       Cisco Systems                  (978) 497-8143
> >                      250 Apollo Drive
> >                      Chelmsford, Ma 01824
> >



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