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# On Router D, create an IP prefix list
peer-a
that permits 1.1.1.9/32. Router D uses this list to
filter peers.
[RouterD] ip prefix-list peer-a index 10 permit 1.1.1.9 32
# On Router D, create an IP prefix list
prefix-to-c
that denies subnet 11.1.1.0/24. Router D uses
this list to filter FEC-label mappings to be advertised to Router C.
[RouterD] ip prefix-list prefix-to-c index 10 deny 11.1.1.0 24
[RouterD] ip prefix-list prefix-to-c index 20 permit 0.0.0.0 0 less-equal 32
# On Router D, create an IP prefix list
peer-c
that permits subnet 3.3.3.9/32. Router D uses this
list to filter peers.
[RouterD] ip prefix-list peer-c index 10 permit 3.3.3.9 32
# On Router D, configure a label advertisement policy. This policy ensures that Router D does
not advertise label mappings for FEC 21.1.1.0/24 to Router A, and does not advertise label
mappings for FEC 11.1.1.0/24 to Router C.
[RouterD] mpls ldp
[RouterD-ldp] advertise-label prefix-list prefix-to-a peer peer-a
[RouterD-ldp] advertise-label prefix-list prefix-to-c peer peer-c
[RouterD-ldp] quit
Verifying the configuration
# Display LDP LSP information on each router.
[RouterA] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup
FECs: 2 Ingress: 1 Transit: 1 Egress: 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 Ser2/1/0
1276/1276 10.1.1.2 Ser2/1/0
[RouterB] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup
FECs: 2 Ingress: 2 Transit: 2 Egress: 0
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 -/1277 10.1.1.1 Ser2/1/0
1277/1277 10.1.1.1 Ser2/1/0
21.1.1.0/24 -/1149 20.1.1.2 Ser2/1/1
1276/1149 20.1.1.2 Ser2/1/1
[RouterC] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup
FECs: 2 Ingress: 1 Transit: 1 Egress: 1
FEC In/Out Label Nexthop OutInterface
11.1.1.0/24 -/1277 20.1.1.1 Ser2/1/0
1148/1277 20.1.1.1 Ser2/1/0
21.1.1.0/24 1149/-
-/1276(L)
-/1150(L)
Summary of Contents for HPE FlexNetwork MSR Router Series
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