HP HPE FlexNetwork MSR Router Series Configuration Manual page 61

# 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
FEC
11.1.1.0/24
21.1.1.0/24
[RouterB] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup
FECs: 2
FEC
11.1.1.0/24
21.1.1.0/24
[RouterC] display mpls ldp lsp
Status Flags: * - stale, L - liberal, B - backup
FECs: 2
FEC
11.1.1.0/24
21.1.1.0/24
Ingress: 1
In/Out Label
1277/-
-/1151(L)
-/1277(L)
-/1276
1276/1276
Ingress: 2
In/Out Label
-/1277
1277/1277
-/1149
1276/1149
Ingress: 1
In/Out Label
-/1277
1148/1277
1149/-
-/1276(L)
-/1150(L)
51
Transit: 1 Egress: 1
Nexthop OutInterface
10.1.1.2 Ser2/1/0
10.1.1.2 Ser2/1/0
Transit: 2 Egress: 0
Nexthop OutInterface
10.1.1.1 Ser2/1/0
10.1.1.1 Ser2/1/0
20.1.1.2 Ser2/1/1
20.1.1.2 Ser2/1/1
Transit: 1 Egress: 1
Nexthop OutInterface
20.1.1.1 Ser2/1/0
20.1.1.1 Ser2/1/0