The MPLS WG Archive

[David Charlap <david.charlap@marconi.com>]

manoj juneja wrote:
>          I have a doubt regarding sender template object in RSVP-TE. Can 
> I fill the sender address in sender template object same as PHOP address 
> (in RSVP_HOP object) at the ingress node in the outgoing path message ?

The sender address in the SENDER_TEMPLATE can be any valid address on 
the ingress node.

My personal preference (and this is _NOT_ a requirement) is to use the 
address of the interface that the LSP accepts incoming traffic on.  In 
other words, if the LSP only receives unlabeled traffic from one 
interface, use that address; if the LSP can receive unlabeled traffic 
from any interface, then use the router address.

The reason for this preference is that it makes it a bit easier to see 
exactly where the traffic in the LSPs is coming from when you're viewing 
the table of connections.

> As per my understanding, the PHOP object will change at every hop in the 
> path message but the sender template remanins the same.

Correct.

> At the ingress node, should the sender address in sender template object 
> be filled with the IP address of the outgoing interface over which the 
> path message is to be sent out ?

That is one legal value you can use.  Any other address that is valid 
for the ingress router is also OK.

-- David