R211x-HP Flexfabric 11900 MPLS Command Reference

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Using mpls ldp transport-address in LDP peer view, you specify the transport address carried in the
Targeted Hellos sent to the LDP peer.
HP recommends using the default transport address.
If two LSRs have multiple links in between and you want to establish an LDP session on each link, make
sure that all the links use the same transport address.
Examples
# Specify the LDP transport address carried in Targeted Hellos sent to peer 3.3.3.3 as 2.2.2.2.
<Sysname> System-view
[Sysname] mpls ldp
[Sysname-ldp] targeted-peer 3.3.3.3
[Sysname-ldp-peer-3.3.3.3] mpls ldp transport-address 2.2.2.2
# On interface VLAN-interface 2, specify the transport address carried in Link Hellos as the IP address of
the interface.
<Sysname> System-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] mpls ldp transport-address interface
Related commands
display mpls ldp discovery
pv-limit
Use pv-limit to specify the path vector limit.
Use undo pv-limit to restore the default.
Syntax
pv-limit pv-number
undo pv-limit
Default
The path vector limit is 32.
Views
LDP view, LDP-VPN instance view
Predefined user roles
network-admin
mdc-admin
Parameters
pv-number: Specifies the path vector limit in the range of 1 to 32.
Usage guidelines
LDP adds LSR ID information in a label request or label mapping message. Each LSR checks whether its
LSR ID is contained in the message. If not, the LSR adds its own LSR ID into the message. If yes, the LSR
considers that a loop occurs and terminates LSP establishment. In addition, when the number of LSR IDs
in the message reaches the path vector limit, LDP also considers that a loop occurs and terminates LSP
establishment.