You can specify how long other processes wait for ANCP to restart. If ANCP goes down and does not restore its sessions with the peer DSLAMs within the specified interval, the CoS updates implemented as a result of ANCP are reverted to the configured values. Consequently, traffic to the subscribers is not effectively shaped, resulting in traffic drops in the DSLAMs. When ANCP subsequently comes back and restores it sessions, updates are sent to shape subscriber traffic.
If instead the connection to a peer DSLAMs is lost and not restored
within the specified interval while ANCP is still running, the CoS
updates implemented as a result of ANCP are maintained. The shaping
rate changes only if the connection comes back up and ANCP subsequently
sends updates to shape subscriber traffic on the peer.
To configure the interval between ANCP adjacency messages: