Server initialization, recovery, and resets
Link Recovery
144
Maintenance Procedures
December 2003
These three (3) administrable parameters are explained in
Table 53, Administrable H.323 Link Bounce
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 19: Idle Traffic Interval
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 20: Keep-Alive signals acknowledged by Gateway
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
Figure 21, Keep-Alive signals not
on page 145) begins. After the administered number of Keep-Alive signals is
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
Figure notes
KA is the Keep-Alive signal; ACK is the Gateway’s acknowledgement
1
Gateway
3
Idle Traffic Interval
2
IP endpoint
Figure notes
1
Gateway
3
Keep-Alive Interval
2
IP endpoint
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...
