Configuring Ldp Backoff; Configuring Ldp Md5 Authentication - HP 6127xlg Configuration Manual

Step
3. Specify an LDP peer and enter
LDP peer view. The device will
send unsolicited Targeted
Hellos to the peer and can
respond to Targeted Hellos sent
from the targeted peer.
4. Configure the Keepalive hold
time.
5. Configure the Keepalive
interval.
6. Configure the LDP transport
address.

Configuring LDP backoff

If LDP session parameters (for example, the label advertisement mode) are incompatible, two LDP peers
cannot establish a session, and they will keep negotiating with each other.
The LDP backoff mechanism can mitigate this problem by using an initial delay timer and a maximum
delay timer. After LDP fails to establish a session with a peer LSR for the first time, LDP does not start an
attempt until the initial delay timer expires. If the session setup fails again, LDP waits for two times the
initial delay before the next attempt, and so forth until the maximum delay time is reached. After that, the
maximum delay time will always take effect.
To configure LDP backoff:
Step
1. Enter system view.
2. Enter LDP view or enter
LDP-VPN instance view.
3. Configure the initial delay
time and maximum delay
time.

Configuring LDP MD5 authentication

To improve security for LDP sessions, you can configure MD5 authentication for the underlying TCP
connections to check the integrity of LDP messages.
For two LDP peers to establish an LDP session successfully, make sure the LDP MD5 authentication
configurations on the LDP peers are consistent.
Command
targeted-peer peer-lsr-id
mpls ldp timer keepalive-hold
timeout
mpls ldp timer keepalive-interval
interval
mpls ldp transport-address
ip-address
Command
system-view
•
Enter LDP view:
mpls ldp
•
Enter LDP-VPN instance view:
a. mpls ldp
b. vpn-instance
vpn-instance-name
backoff initial initial-time maximum
maximum-time
27
Remarks
By default, the device does not
send Targeted Hellos to or
receive Targeted Hellos from
any peer.
By default, the Keepalive hold
time is 45 seconds.
By default, the Keepalive interval
is 15 seconds.
By default, the LDP transport
address is the LSR ID of the local
device.
Remarks
N/A
N/A
By default, the initial delay time is
15 seconds and the maximum
delay time is 120 seconds.