Avaya MCC1 Maintenance Procedures page 144

Server initialization, recovery, and resets
Link Recovery
These three (3) administrable parameters are explained in
Recovery parameters,
The Idle Traffic Interval is the period of time between the IP endpoint's last broadcast Keep-Alive signal
and the Gateway's last acknowledgement as depicted in
Figure 19: Idle Traffic Interval
Figure notes
KA is the Keep-Alive signal; ACK is the Gateway's acknowledgement
1 Gateway
2 IP endpoint
The Keep Alive Interval is the time between Keep-Alive messages that the endpoint sends to the
Gateway as depicted in
Figure 20: Keep-Alive signals acknowledged by Gateway
Figure notes
1 Gateway
2 IP endpoint
Whenever the Gateway does not send the acknowledge message (ACK) in response to the endpoint's
TCP Keep-Alive signal (KA), the Keep-Alive Count (note 4 in
acknowledged by Gateway,
reached (2 in the example), the endpoint attempts to re-register with the Gateway (note 5 in
Keep-Alive signals not acknowledged by Gateway,
The loss of the H.323 signaling link between the Gateway and an IP endpoint is detected by the TCP-
based Keep-Alive signaling, and both the endpoint and the Gateway must be administered for the H.323
Link Bounce Recovery feature (see Administration).
144
on page 145.
3 Idle Traffic Interval
Figure 20, Keep-Alive signals acknowledged by Gateway,
3 Keep-Alive Interval
on page 145) begins. After the administered number of Keep-Alive signals is
Table 53, Administrable H.323 Link Bounce
Figure 19, Idle Traffic Interval,
Figure 21, Keep-Alive signals not
on page 145).
Maintenance Procedures
on page 144.
on page 144.
Figure 21,
December 2003