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LDP Configuration on Cisco

  • From: Vishal M <vishal_study@yahoo.com>
  • Date: Fri, 13 Dec 2002 00:30:33 -0800 (PST)
  • Resent-Date: Fri, 13 Dec 2002 05:07:02 -0500
  • To: mpls-ops@mplsrc.com


Hi,

I have a question on LDP DU configuration for Cisco
GSR (running IOS 12.0 (14)ST).

     ------ eth0---Cisco-----gigEth-----RTR_A

1. Cisco learns some BGP prefixes via intf eth0.
2. LDP is enabled between Cisco and RTR_A on intf
gigEth.
3. I notice that Cisco just advertises LDP bindings
for static/loopback/connected routes to RTR_A. It
doesn't advertise any LDP mapping for BGP routes.
4. There is no ACL prohibiting advertisement of BGP
prefixes (via mpls ldp advertise-acls cmd). i.e. ACL
is permitting all to all peers.

Question:
1. Is something missing in the configuration that is
causing Cisco to *not* advertise LDP mappings for BGP
prefixes to RTR_A ?

Could someone please give some pointers.

thanks for your time,

Regards,
Vishal.





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