The MPLS WG Archive

["Vishal Sharma" <v.sharma@ieee.org>]

Atul,

It would not be very efficient to use the Notification message
of GMPLS to remove Path/Resv states in MPLS (or GMPLS).
The primary purpose of the Notification message is to get error
information to the point/node responsible for taking an action
(such as a restoration action) in response to that error/fault.

The removal of the states (even when using GMPLS)
is still handled by normal RSVP processes,
which remove state systematically (hop-by-hop) [and free up resources]
from all of the intermediate nodes on a LSP.

To do the same with a Notification message, you'd probably have to
send a series of Notification messages (since it is a targeted message)
one each to every intermediate node on the LSP, instructing them to
remove state!

-Vishal

> -----Original Message-----
> From: owner-mpls@UU.NET [mailto:owner-mpls@UU.NET]On Behalf Of Atul
> Gupta
> Sent: Wednesday, July 24, 2002 2:59 AM
> To: mpls@UU.NET
> Subject: Notification process
> 
> 
> Hi,
> In GMPLS we use Notification Message to avoid the
> large propagation delays of the error messages. Can we
> use same message in MPLS so that existing Path/Resv
> States can be removed quikly and resources are also
> preserved.
> Atul
> Samsung
> 
> =====
> Atul Gupta
> Samsung Software
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Health - Feel better, live better
> http://health.yahoo.com
>