Troubleshooting guide

8-32
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 8 Troubleshooting Tag and MPLS Switching Connections
Troubleshooting MPLS VPN
Step 3 Enter the show ip cef vrf command with the VRF name and summary keyword to display a summary
of the CEF table associated with a VRF.
8540-ATM-PE2# show ip cef vrf 1 summary
IP CEF with switching (Table Version 18), flags=0x0
12 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 4
35 leaves, 45 nodes, 48704 bytes, 84 inserts, 49 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id 61FD1177
2 CEF resets, 0 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
0 in-place/0 aborted modifications
refcounts: 4930 leaf, 4922 node
Adjacency Table has 10 adjacencies
8540-ATM-PE2#
Step 4 Enter the show ip cef vrf command with the VRF name and detail keyword to display greater detail of
the CEF table associated with a VRF.
8540-ATM-PE2# show ip cef vrf 1 detail
IP CEF with switching (Table Version 18), flags=0x0
12 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 4
35 leaves, 45 nodes, 48704 bytes, 84 inserts, 49 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id 61FD1177
2 CEF resets, 0 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
0 in-place/0 aborted modifications
refcounts: 4930 leaf, 4922 node
Adjacency Table has 10 adjacencies
0.0.0.0/32, version 0, receive
11.0.0.0/8, version 8, cached adjacency to ATM1/0/1
0 packets, 0 bytes
tag information set
local tag: VPN-route-head
fast tag rewrite with AT1/0/1, point2point, tags imposed: {51(vcd=51) 19}
via 102.0.0.2, 0 dependencies, recursive
next hop 3.0.0.1, ATM1/0/1 via 102.0.0.2/32
valid cached adjacency
tag rewrite with AT1/0/1, point2point, tags imposed: {51(vcd=51) 19}
14.0.0.0/8, version 14, attached, connected
0 packets, 0 bytes
tag information set
local tag: 18
via GigabitEthernet2/0/1, 0 dependencies
valid glean adjacency
tag rewrite with , , tags imposed: {}
14.0.0.0/32, version 12, receive
14.0.0.1/32, version 11, receive
14.0.0.2/32, version 15, connected, cached adjacency 14.0.0.2
0 packets, 0 bytes
via 14.0.0.2, GigabitEthernet2/0/1, 2 dependencies
next hop 14.0.0.2, GigabitEthernet2/0/1
valid cached adjacency
14.255.255.255/32, version 13, receive
101.0.0.0/8, version 9, cached adjacency to ATM1/0/1
0 packets, 0 bytes
tag information set
local tag: VPN-route-head
fast tag rewrite with AT1/0/1, point2point, tags imposed: {51(vcd=51) 20}
via 102.0.0.2, 0 dependencies, recursive
next hop 3.0.0.1, ATM1/0/1 via 102.0.0.2/32