Configuring LDP session parameters
This task configures the following LDP session parameters:
Keepalive hold time and Keepalive interval.
LDP transport address—IP address for establishing TCP connections.
LDP uses Basic Discovery and Extended Discovery mechanisms to discovery LDP peers and establish LDP sessions with them.
When you configure LDP session parameters, follow these guidelines:
The configured LDP transport address must be the IP address of an up interface on the device. Otherwise, no LDP session can be established.
Make sure the LDP transport addresses of the local and peer LSRs can reach each other. Otherwise, no TCP connection can be established.
Configuring LDP sessions parameters for Basic Discovery mechanism
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Set the Keepalive hold time. | mpls ldp timer keepalive-hold timeout | By default, the Keepalive hold time is 45 seconds. |
4. Set the Keepalive interval. | mpls ldp timer keepalive-interval interval | By default, the Keepalive interval is 15 seconds. |
5. Configure the LDP transport address. | mpls ldp transport-address { ipv4-address | interface } | By default, the LDP transport address is the local LSR ID if the interface where you want to establish an LDP session belongs to the public network. If the interface belongs to a VPN, the LDP transport address is the primary IP address of the interface. If the interface where you want to establish an LDP session is bound to a VPN instance, the interface with the IP address specified with this command must be bound to the same VPN instance. |
Configuring LDP sessions parameters for Extended Discovery mechanism
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter LDP view. | mpls ldp | N/A |
3. Specify an IPv4 LDP peer and enter LDP peer view. The device will send unsolicited IPv4 Targeted Hellos to the peer and can respond to IPv4 Targeted Hellos received from the targeted peer. | targeted-peer ipv4-address | By default, the device does not send IPv4 Targeted Hellos to any peers, or respond to IPv4 Targeted Hellos received from any peers. |
4. Set the Keepalive hold time. | mpls ldp timer keepalive-hold timeout | By default, the Keepalive hold time is 45 seconds. |
5. Set the Keepalive interval. | mpls ldp timer keepalive-interval interval | By default, the Keepalive interval is 15 seconds. |
6. Configure the LDP transport address. | mpls ldp transport-address ipv4-address | By default, the LDP transport address is the LSR ID of the local device. |