
Configuring ATM Services
9-4 114056 Rev. A
Setting Signaling Timers
You can set several different signaling timers. Table 9-1 show the timer defaults,
ranges, and descriptions.
Table 9-1. Signaling Timer Descriptions
Name Default Range Description
T303 4 1 through 24 Defines the Setup Sent timer value (in seconds). This timer
begins when the circuit initiates a call/connection request by
sending a SETUP message over the signaling VC.
The Setup Sent timer stops when the circuit receives either a
CONNECT message (indicating connection), CALL
PROCEEDING message (indicating that the network received
the SETUP message), or RELEASE COMPLETE message
(indicating the rejection of the SETUP message) from the
network.
If the circuit does not receive one of these messages within
the allotted time, it transmits the SETUP message a second
time. If the circuit still does not receive a response, it clears
the connection.
T308 30 1 through 180 Defines the Release Sent timer value (in seconds). This timer
begins when the circuit sends a RELEASE message to initiate
clearing of an SVC. Sending this RELEASE message places
the network in the Release Request state.
The Release Sent timer stops when the circuit receives either
a RELEASE message (that is, both the circuit and the network
sent RELEASE messages at the same time) or a RELEASE
COMPLETE message from the network.
If the timer expires before the circuit receives one of these
messages, the circuit transmits the RELEASE message a
second time. If the circuit still does not receive a response, the
circuit releases the call reference and begins a restart
procedure.
(continued)
Kommentare zu diesen Handbüchern