kevin at gannons
Oct 31, 2008, 9:14 AM
Post #1 of 2
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CSC unable to ping PE address
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I have a basic CSC topology and am having inconsistent problems on
both 12.2(25)S9 and
also on S15
Below is a snip of the configs from both boxes. The issue is on the CE
if I try to ping
the PE 150.1.12.2 it does not work. You can see the CE is tagging a label of
20 on the packet but it is not been seen in the CE forwarding table. Also on the
PE has no label twenty installed
If I clear the ldp neighbor while the neighbor is down I can ping from
CE to neighbor
so it is not a basic L2 issue.
Any ideas ?
=============================CE=============================
interface Serial2/2
ip address 150.1.12.1 255.255.255.0
mpls ip
serial restart-delay 0
no clns route-cache
end
Rack1R1#
1d21h: ldp: Scan listening TCBs
Rack1R1#show ip route 150.1.12.2
Routing entry for 150.1.12.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Routing Descriptor Blocks:
* directly connected, via Serial2/2
Route metric is 0, traffic share count is 1
Rack1R1#show ip cef 150.1.12.2
150.1.12.0/24
attached to Serial2/2 label 20
Rack1R1#
Rack1R1#show mpls for
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
16 Pop Label 150.1.3.3/32 208868 Se2/1 point2point
18 23 150.1.56.0/24 0 Se2/2 point2point
19 24 150.1.45.0/24 0 Se2/2 point2point
20 25 150.1.6.6/32 67 Se2/2 point2point
21 26 150.1.5.5/32 0 Se2/2 point2point
22 22 150.1.222.222/32 0 Se2/2 point2point
Rack1R1#
=================CSC PE====================================
Current configuration : 141 bytes
!
interface Serial2/2
ip vrf forwarding csc
ip address 150.1.12.2 255.255.255.0
mpls ip
serial restart-delay 0
no clns route-cache
end
Rack1R2#show mpls for vrf csc
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
18 No Label 150.1.1.1/32[V] 0 Se2/2 point2point
19 No Label 150.1.3.3/32[V] 331 Se2/2 point2point
20 Pop Label 150.1.12.0/24[V] 687164 Se2/2 point2point
21 No Label 150.1.13.0/24[V] 0 Se2/2 point2point
22 Aggregate 150.1.222.222/32[V] \
0 csc
23 25 150.1.56.0/24[V] 0 Fa0/0 150.1.24.4
24 24 150.1.45.0/24[V] 0 Fa0/0 150.1.24.4
25 23 150.1.6.6/32[V] 235922 Fa0/0 150.1.24.4
26 22 150.1.5.5/32[V] 0 Fa0/0 150.1.24.4
Rack1R2#
Rack1R2#sho ip cef vrf csc 150.1.12.1
150.1.12.0/24
attached to Serial2/2
Rack1R2#sho ip cef vrf csc 150.1.12.2
150.1.12.2/32
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