GTTP and LSP PING

[Ronald Bonica <ronald.p.bonica@mci.com>]

Folks,

At IETF 59, an issue regarding the relationship of GTTP to LSP PING was
raised and redirected toward the list. I am posting this message in order to
initiate discussion.

One might argue that GTTP should invoke LSP PING when tracing though an MPLS
LSP. (In fact, previous versions of the GTTP draft stated that GTTP would
invoke LSP PING.) I'm not sure that this is a good idea.

GTTP has a requirement to trace through multiple levels of heterogenous
tunnels. For example, GTTP might be required to discover IP over MPLS over
IP. If GTTP were to invoke LSP PING to discover LSP details, I fear that it
would miss the IP tunnel at the bottom of the stack.

This assumption could be wrong. Comments?

----------------
Ronald P. Bonica
----------------
Sometimes the easiest way to 
start a dialog is to start talking.