Avaya MCC1 Maintenance Procedures page 145

Figure 21: Keep-Alive signals not acknowledged by Gateway
Figure notes
1 Gateway
2 IP endpoint
3 No Gateway acknowledgement
or H.323 link to IP endpoint
Table 53, Administrable H.323 Link Bounce Recovery parameters,
parameters that interact within the H.323 Link Bounce Recovery feature. See
implement these parameters.
Table 53: Administrable H.323 Link Bounce Recovery parameters
Parameter
(device)
Idle Traffic Interval
(Endpoint)
Keep Alive Interval
(Endpoint)
Keep-Alive Count
(Endpoint)
H.323 Link Loss Delay Timer
(Gateway)
Maintenance Procedures
December 2003
Server initialization, recovery, and resets
4 Keep-Alive Count = 2
5 Endpoint attempts to re-register with
Gateway
Definition
The maximum traffic idle time after which a TCP Keep-Alive
(KA) signal is sent from the endpoint.
The time interval between TCP Keep-Alive re-transmissions.
When no ACK is received for all retry attempts, the local TCP
stack ends the TCP session and the associated socket is closed.
The number of times the Keep-Alive message is transmitted if no
ACK is received from the peer.
This timer specifies how long the Communications Manager
server (Gateway) preserves registration and any stable calls that
may exist on the endpoint after it has lost the call signaling
channel to the endpoint. If the endpoint does not re-establish
connection within this period, Communication Manager tears
down the registration and calls (if any) of the endpoint.
NOTE:
This timer does not apply to Soft-endpoint
telecommuter calls.
Link Recovery
on page 145 lists the administrable
Administration for how to
(1 of 2)
145