Alcatel Carrier Internetworking Solutions Switch/Router 사용자 설명서

Page 19-12

There are several switch-wide group mobility variables that you can configure through the 

 command. These variables control the status of group mobility on all groups in a 

switch as well as the use of the default group. These variables are illustrated through 
diagrams on pages 19-9 to 19-11.

Follow these steps to use the 

 command:

1. Enter 

. You do not need to specify a group number as this command applies to all 

mobile groups in this switch.

2. The following prompt displays:

This prompt controls the status of group mobility in this switch. If you disable group 
mobility here then mobile groups will not be supported in this switch even if they are 
configured through the 

 command. 

. When group mobility is enabled, default group 1 in the switch will be 

treated as a mobile group and you will not be able to create AutoTracker VLANs within 
this group. When group mobility is disabled, default Group 1 in the switch will be treated 
as a non-mobile group in which AutoTracker VLANs could be created.

The default is to turn Group Mobility off. If you want to enable group mobility, then you 
need to indicate that choice at this prompt. The prompt will always show the current 
status of Group Mobility and then ask if you want to change that status. If you want to 
change the current status, then enter a 

 at this prompt and press 

. To keep the 

current status, simply press 

.

3. The following prompt displays:

The move_to_def variable determines what happens to a port once the devices on that 
port age out of the filtering database. By default this variable is Disabled, which means 
that a port will remain a member of a mobile group as long as its attached device satis-
fied the criteria for membership in that mobile group at one point. If devices on a port 
stop transmitting, the port will still retain all its mobile group memberships. 

If the move_to_def variable is Enabled, then a port will lose its membership in a mobile 
group if its devices age out of the filtering database for that mobile group (i.e., they stop 
transmitting traffic that satisfies the criteria for membership in the mobile group). Once a 
port loses membership in all criteria-based mobile groups, it will return to its default 
group. The effect of this variable is illustrated on page 19-11.

By default, the move_to_def variable is Disabled. If you want to enable it (ports lose 
mobile group membership when they age out), then you need to indicate that choice at 
this prompt. The prompt will always show the current status of move_to_def and then ask 
if you want to change that status. If you want to change the current status, then enter a 

 

at this prompt and press 

. To keep the current status, simply press 

.

4. The following prompt displays:

The def_group variable determines what happens to devices that do not match any 
mobile group policies. If def_group is Enabled (the default), then devices that do not 
match any mobile group policies will be part of the default group for that port. If the 
def_group variable is Disabled, then devices that do not match any mobile group policies 
will be dropped from their default group and will not be part of any mobile group.