The MPLS WG Archive

["Loa Andersson" <loa.andersson@utfors.se>]

----- Original Message -----
From: David Charlap <david.charlap@marconi.com>
Date: Monday, April 30, 2001 5:02 pm
Subject: Re: Two signalling protocols (LDP & RSVP)

> mgoel@hss.hns.com wrote:
> > 
> > Although both CR-LDP and RSVP-TE provides similar functionalities,
> > but one significant reason why we would like to run both the
> > protocols on the same interface can be that TE-RSVP supports IP
> > record route option using its record route objects.But CR-LDP
> > doesn't support IP record route option.
> 
> CR-LDP has the Path-Vector TLV, which works almost identically to the
> RSVP RECORD_ROUTE object.

The path vector comes from LDP , it is intended to be use to
detect loops. 
proper working of the path vector  requires that all the 
nodes are configured for loop detection.

Yes, the path vector and RSVP RECORD_ROUTE works "almost" the 
same, but not quite enough the same, not to require changes in 
the current specs.

Admittedly these changes are small and easy to make, but how many 
small changes ióf this nature do we need before it really becomes a
pain?

/Loa
> 
> -- David
>