Server initialization, recovery, and resets
Link Recovery
146
Maintenance Procedures
December 2003
Link recovery sequence
Table 54, H.323 Link Recovery sequence,
on page 146 lists the sequence of events during recovery and
includes an explanation of what it happening. This sequence correlates with
NOTE:
The sequence assumes that the Idle Traffic Interval and the Keep-Alive Interval are
already administered at acceptable levels for the network configuration.
Primary Search Time (GST)
(Endpoint)
While on-hook, this is the maximum time period that the IP
endpoint expends attempting to register with its current
Communication Manager server (Gateway). The need for this
timer arises in situations where the current Communication
Manager server may have a large number of C-LAN circuit
packs. This timer allows the customer to specify the maximum
time that an IP endpoint spends on trying to connect to the C-
LANs associated with the current Gateway before going to an
LSP as defined in the
While off-hook, the endpoint continues trying to re-establish
connection with the current server (Gateway) until the call ends.
Table 54: H.323 Link Recovery sequence
Process
sequence
Description
1
Link failure detected (any of the following):
•
Gateway detects a TCP socket failure
•
TCP socket closure
•
Catastrophic network error on the link
•
Lack of a TCP Keep-Alive signal from the endpoint (Keep-Alive Count
exceeded). See
signals not acknowledged by Gateway,
on page 145 for more information.
(1 of 2)
Table 53: Administrable H.323 Link Bounce Recovery parameters
Parameter
(device)
Definition
(2 of 2)
Summary of Contents for CMC1
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