R21xx-HP FlexFabric 11900 MPLS Configuration Guide

85
6. Verify the configuration:
# Execute the display mpls ldp lsp command on each switch to view the LDP LSP information.
[SwitchA] display mpls ldp lsp
Status Flags: * - stale, L - liberal
Statistics:
FECs: 2 Ingress LSPs: 1 Transit LSPs: 1 Egress LSPs: 1
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 1277/-
-/1151(L)
-/1277(L)
21.1.1.0/24 -/1276 10.1.1.2 Vlan-int2
1276/1276 10.1.1.2 Vlan-int2
[SwitchB] display mpls ldp lsp
Status Flags: * - stale, L - liberal
Statistics:
FECs: 2 Ingress LSPs: 2 Transit LSPs: 2 Egress LSPs: 0
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 -/1277 10.1.1.1 Vlan-int2
1277/1277 10.1.1.1 Vlan-int2
21.1.1.0/24 -/1149 20.1.1.2 Vlan-int3
1276/1149 20.1.1.2 Vlan-int3
[SwitchC] display mpls ldp lsp
Status Flags: * - stale, L - liberal
Statistics:
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.