HP MSR2000/3000/4000 Router Series MPLS Command Reference

23
LDP commands
accept-label
Use accept-label to configure a label acceptance policy.
Use undo accept-label to remove the label acceptance policy.
Syntax
accept-label peer peer-lsr-id prefix-list prefix-list-name
undo accept-label peer peer-lsr-id
Default
No label acceptance policy is configured. LDP accepts all label mappings from all peers.
Views
LDP view, LDP-VPN instance view
Predefined user roles
network-admin
Parameters
peer peer-lsr-id: Specifies an LDP peer by its LSR ID.
prefix-list prefix-list-name: Specifies an IP prefix list by its name, a case-sensitive string of 1 to 63
characters.
Usage guidelines
Using the label acceptance policy, LDP accepts only the FEC-label mappings whose prefixes are
permitted by the specified IP prefix list from the specified peer.
This feature enables you to control the number of label mappings received from peers.
If you change the label acceptance policy to accept the previously denied label mappings from a specific
peer, for example, by using the undo accept-label command or by changing the IP prefix list, you must
execute the reset mpls ldp command to reset the LDP session with the specified peer to apply the new
policy.
Using a label advertisement policy on an LSR or using a label acceptance policy on its upstream LSR can
achieve the same purpose. HP recommends that you use the label advertisement policy to reduce
network load.
Examples
# Configure a label acceptance policy to accept only the FEC-label mappings containing prefixes
10 .1.1. 0 / 24 a n d 10 . 2.1. 0 / 2 4 f r o m t h e L D P p e e r 1.1.1. 9.
<Sysname> system-view
[Sysname] ip prefix-list prefix-from-RTA index 1 permit 10.1.1.0 24
[Sysname] ip prefix-list prefix-from-RTA index 2 permit 10.2.1.0 24
[Sysname] mpls ldp
[Sysname-ldp] accept-label peer 1.1.1.9 prefix-list prefix-from-RTA