Configuring Local Ldp Session Parameters; Configuring Remote Ldp Session Parameters - HP 12500 Series Configuration Manual

NOTE:
Disabling LDP on an interface terminates all LDP sessions on the interface. As a result, all LSPs using the
•
sessions will be deleted.
Usually, configuring the LDP LSR ID is not required, as it defaults to the MPLS LSR ID. In some
•
applications that use VPN instances (for example, MPLS L3VPN), however, you must make sure that
different LDP instances have different LDP LSR IDs if the address spaces overlap. Otherwise, the TCP
connections cannot be established normally.

Configuring local LDP session parameters

LDP sessions established between local LDP peers are local LDP sessions. To establish a local LDP
session:
Determine the LDP transport addresses of the two peers and make sure that the LDP transport
•
addresses are reachable to each other. This is to establish the TCP connection.
• If many LDP sessions exist between the two LSRs or the CPU is occupied much, adjust timers to
ensure the stability of the LDP sessions.
To configure local LDP session parameters:
To do...
Enter system view
Enter interface view
Set the link Hello timer
Set the link Keepalive timer
Configure the LDP transport
address
CAUTION:
If you configure an LDP transport address by specifying an IP address, the specified IP address must be the
IP address of an interface on the switch. Otherwise, the LDP sessions cannot be established.

Configuring remote LDP session parameters

LDP sessions established between remote LDP peers are remote LDP sessions. Remote LDP sessions are
mainly used in Martini MPLS L2VPN, Martini VPLS, and MPLS LDP over MPLS TE. For more information
about remote session applications, see the chapters "Configuring MPLS L2VPN," "Configuring VPLS,"
and "Configuring MPLS TE."
To establish a remote LDP session:
Determine the LDP transport addresses of the two peers and make sure that the LDP transport
•
addresses are reachable to each other. This is to establish the TCP connection.
• If many LDP sessions exist between the two LSRs or the CPU is occupied much, adjust timers to
ensure the stability of the LDP sessions.
Use the command...
system-view
interface interface-type
interface-number
mpls ldp timer hello-hold value
mpls ldp timer keepalive-hold
value
mpls ldp transport-address
{ ip-address | interface }
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Remarks
—
—
Optional
15 seconds by default
Optional
45 seconds by default
Optional
MPLS LSR ID of the LSR by default