Label Advertisement Control Configuration Example - HP 10500 Series Configuration Manual

[SwitchC-ldp] quit
Verify the configuration:
6.
# Execute the display mpls ldp lsp command on each switch to view the LDP LSP information. For
example, on Switch A:
[SwitchA] display mpls ldp lsp
Status Flags: * - stale, L - liberal
Statistics:
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 Switch B (10.1.1.2). The LSP
has been set up over the link Switch A—Switch B—Switch C, not over the link Switch A—Switch
D—Switch C.

Label advertisement control configuration example

Network requirements
Two links, Switch A—Switch B—Switch C and Switch A—Switch D—Switch C, exist between subnets
1 1.1.1.0/24 and 21.1.1.0/24.
Configure label advertisement control, so LDP sets up LSPs only on the link Switch A—Switch B—Switch
C to forward traffic between subnets 1 1.1.1.0/24 and 21.1.1.0/24.
Figure 24 Network diagram
Configuration considerations
Configure a routing protocol on each switch to make sure that the switches can reach each other.
1.
This example uses OSPF.
Ingress LSPs: 1
In/Out Label
1277/-
-/1148(L)
-/1149(L)
-/1276
1276/1276
80
Transit LSPs: 1
Nexthop OutInterface
10.1.1.2 Vlan-int2
10.1.1.2 Vlan-int2
Egress LSPs: 1