RE: Difference between Aggregate and Implicit Null

It depends where you see the Label Information in the Label Switch Path.

An Egress LSR will send the Implicit Null (Label=3) to the Upstream LSR (PHP
Router) for any of its directly connected or summarized routes.

So in the Upstream LSR you will see "Pop Tag" and in the Egress LSR you will
see "Aggregate" for the same prefixes.

Regards,

Antonio Soares, CCIE #18473 (R&S/SP)
amsoares_at_netcabo.pt
http://www.ccie18473.net

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Routing Freak
Sent: sexta-feira, 11 de Margo de 2011 10:37
To: Cisco certification
Subject: Difference between Aggregate and Implicit Null

Can anyone tell me clearly the difference between Aggregate and Implicit
null label??

Blogs and organic groups at http://www.ccie.net
Received on Fri Mar 11 2011 - 14:04:02 ART