Command Reference Guide

244 ● select-mode 3Com Router 5000 Family and Router 6000 Family
Command Reference
select-mode
Purpose Use the select-mode command to configure the E1 trunk selection mode.
Use the undo select-mode command to restore the default.
Syntax select-mode [ max | maxpoll | min | minpoll ]
undo select-mode
Parameters max
Indicate the maximum selection.
maxpoll
Indicate the maximum polling selection.
min
Indicate the minimum selection.
minpoll
Indicate the minimum polling selection.
Default By default, the trunk selection mode is min.
Example Configure the trunk selection mode as max for the No.5 Timeslot set in No.0 E1
subscriber-line.
[Router-cas1/0/0:5] select-mode max
View This command can be used in the following views:
■ R2 CAS view
Description This command applies to E1 voice only.
The proper selection policy can not only enables each timeslot in E1 trunk to have the
balanced opportunity to be used but also helps to enhance the speed of selecting idle
timeslot, so as to improve the telephone connection speed.
The parameter max indicates the maximum selection, selecting the timeslot of the
maximum serial number from the currently available timeslots.
The parameter maxpoll indicates the maximum polling selection. When used for the
first time, select the timeslot of the maximum serial number from the currently
available timeslots, and next time select in descending order the available timeslot
whose serial number is less than it. For example, No.31 and No.29 timeslots are
unavailable in 32 timeslots, so select firstly No.30 timeslot, and select No.28 timeslot
secondly.
The parameter min indicates the minimum selection, selecting the timeslot of the
minimum serial number from the currently available timeslots.