H3C Technologies H3C S12500-X Series Switches - Manual (Page 54)

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FECs: 2 Ingress LSPs: 1 Transit LSPs: 1 Egress LSPs: 1
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 -/1277 20.1.1.1 Vlan-int3
1148/1277 20.1.1.1 Vlan-int3
21.1.1.0/24 1149/-
-/1276(L)
-/1150(L)
[SwitchD] display mpls ldp lsp
Status Flags: * - stale, L - liberal
Statistics:
FECs: 2 Ingress LSPs: 0 Transit LSPs: 0 Egress LSPs: 2
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 1151/-
-/1277(L)
21.1.1.0/24 1150/-
The output shows that Switch A and Switch C has received FEC-label mappings only from Switch B.
Switch B has received FEC-label mappings from both Switch A and Switch C. Switch D does not receive
FEC-label mappings from Switch A or Switch C. LDP has set up an LSP only over the link Switch A—Switch
B—Switch C.
# On Switch A, test the connectivity of the LDP LSP from Switch A to Switch C.
[SwitchA] ping mpls -a 11.1.1.1 ipv4 21.1.1.0 24
MPLS Ping FEC: 21.1.1.0/24 : 100 data bytes
100 bytes from 20.1.1.2: Sequence=1 time=1 ms
100 bytes from 20.1.1.2: Sequence=2 time=1 ms
100 bytes from 20.1.1.2: Sequence=3 time=8 ms
100 bytes from 20.1.1.2: Sequence=4 time=2 ms
100 bytes from 20.1.1.2: Sequence=5 time=1 ms
--- FEC: 21.1.1.0/24 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max = 1/2/8 ms
# On Switch C, test the connectivity of the LDP LSP from Switch C to Switch A.
[SwitchC] ping mpls -a 21.1.1.1 ipv4 11.1.1.0 24
MPLS Ping FEC: 11.1.1.0/24 : 100 data bytes
100 bytes from 10.1.1.1: Sequence=1 time=1 ms
100 bytes from 10.1.1.1: Sequence=2 time=1 ms
100 bytes from 10.1.1.1: Sequence=3 time=1 ms
100 bytes from 10.1.1.1: Sequence=4 time=1 ms
100 bytes from 10.1.1.1: Sequence=5 time=1 ms
--- FEC: 11.1.1.0/24 ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max = 1/1/1 ms