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 failing to establish a session to 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 | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter LDP view or enter LDP-VPN instance view. |
| N/A |
3. Set the initial delay time and maximum delay time. | backoff initial initial-time maximum maximum-time | By default, the initial delay time is 15 seconds, and the maximum delay time is 120 seconds. |