Label Advertisement Control Configuration Example - HP HPE FlexNetwork MSR Router Series Configuration Manual

Status Flags: * - stale, L - liberal, B - backup
FECs: 2
FEC
11.1.1.0/24
21.1.1.0/24
The output shows that the next hop of the LSP for FEC 21.1.1.0/24 is Router B (10.1.1.2). The LSP
has been established over the link Router A—Router B—Router C, not over the link Router
A—Router D—Router C.
# Test the connectivity of the LDP LSP from Router A to Router C.
[RouterA] 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
# Test the connectivity of the LDP LSP from Router C to Router A.
[RouterC] 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

Label advertisement control configuration example

Network requirements
Two links, Router A—Router B—Router C and Router A—Router D—Router C, exist between
subnets 11.1.1.0/24 and 21.1.1.0/24.
Configure LDP to establish LSPs only for routes to subnets 11.1.1.0/24 and 21.1.1.0/24.
Configure LDP to establish LSPs only on the link Router A—Router B—Router C to forward traffic
between subnets 11.1.1.0/24 and 21.1.1.0/24.
Ingress: 1
In/Out Label
1277/-
-/1148(L)
-/1276
1276/1276
Transit 1 Egress: 1
Nexthop OutInterface
10.1.1.2 Ser2/1/0
10.1.1.2 Ser2/1/0
47