3Com 9000 manual Protocol timers, Response is overdue

180CHAPTER 7: CONFIGURING VIRTUAL CHANNELS

Signaling Timers You can configure the ILMI signaling timers.

Display Protocol Timer Resolution

Update Protocol Timer Resolution

￿Display UNI Signaling Timers

Display QSAAL Signaling Timers and Protocol Configuration

For information about signaling timers, see “Signaling Timers” on page 96 in the Operations Guide.

Display Protocol	Display the current timer resolution in milliseconds for the signaling
Timer Resolution	protocol timers.
	Each signaling protocol comes with a set of timers, one for each type of
	message in the protocol. These timers determine when an expected
	response to a message is overdue. They are set to the expected response
	time when the message is sent and decrement towards zero. If they reach
	zero before the response is received the system is notified that the
	response is overdue.
	All the timers in the Q93B and QSAAL protocol are based on a common
	timer tick-length called the timer resolution. When the timer resolution is
	changed, all of the signaling timers are affected.
	The CoreBuilder 9000 ATM Enterprise Switch is shipped with a default
	timer resolution of 500 msec (0.5 secs). To change the value of an
	individual timer, change the timer resolution proportionally. For example,
	if you want to lower the “no response” timer from 50 secs to 25 secs,
	reduce the timer resolution from 500 msec to 250 msec. Then the “no
	response” timer, together with all the other timers, are reduced by one
	half. For more information, see “Timer Resolution” on page 98 in the
	Operations Guide.