The MPLS WG Archive

[Kireeti Kompella <kireeti@juniper.net>]

Hi Curtis, Shahram:

On Fri, 13 Dec 2002, Curtis Villamizar wrote:

> > I was more thinking in terms of how to make sure the backup/detour
> > paths are working fine, while the traffic is still on the working path.
>
>
> Currently you'd have to do that from each PLR.

Agreed.  One question is, do the PLRs do this autonomously, or should
this be triggered by LSP pings for the protected LSPs (to be more
accurate, LSP traceroutes)?  For now, I'm happy to go with the former.

> We also don't provide a
> means to tell a specific PLR to exercise its detour and report back.

Having the PLR exercise (i.e., send pings along) its detours is up
to the implementation.  Right now, there is no LSP ping mechanism for
reporting back.  Should there be?  (If so, I would rather leave it to
a follow-up doc.)

> Let's wait and hear from Kireeti or other authors whether they think
> anything should be added or whether the intent is to require testing
> initiated at each PLR.

You've heard from me (insofar as you can hear email) :-)

Kireeti.