Dear All,
On a Cisco 7206-VXR router acting as a PE router aggregating MPLS links, I
am using tag-switching because of the IOS support in 12.1(7) enterpise set
is only for Tag-switching, & will be shortly migrating to native MPLS.
On the same router, I have also defined a GRE-IP tunnel to one of my
partner sites. I have created a static entry to my partner site, for
traffic destined to my partner's network to use the GRE-IP tunnel.
The static route defined - ip route 172.16.0.0 255.255.0.0 192.168.158.1
(GRE-IP Tunnel)
I am trying to limit the generation of tags for destination prefixes by
starting off with disabling all prefixes from having a tag being
generated, wherein I use the following commands -
C7206-VXR(config)# tag-switching advertise-tags for 1
C7206-VXR(config)# access-list 1 deny any log
But I still find tags generated for the prefix available through the
GRE-IP tunnel.
C7206-VXR# sh tag-switching forwarding-table
Local Outgoing Prefix Bytes tag Outgoing Next
Hop
tag tag or VC or Tunnel Id switched interface
26 Untagged 172.27.0.0/16 0 Tu0 point2point
Also the command "sh tag-switching tdp bindings" lists all the prefixes
known to the router with a tag: imp-null, & the 172.27.0.0/16 with tag:26.
What does this tag: imp-null, & tag:26 indicate? My understanding is that
tag:imp-null indicates no tag generated, & tag:26 indicates a valid tag
generated.Kindly corect me if I am wrong.
How can I disable this prefix from having a label generated.
Kindly enlighten me pls.
With warm regards,
Vinod.
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:34 EDT