Alcatel Omni Switch/Router, User Manual

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Mobile Groups
Page 19-5
Mobile Groups
Switch ports can be dynamically assigned to mobile groups through AutoTracker policies.
Support for dynamic port assignment is one of the main differences between mobile groups
and non-mobile groups. AutoTracker rules are assigned
directly to a mobile group. In
contrast, AutoTracker rules are assigned to the VLANs within a non-mobile group. No
AutoTracker VLANs are contained within a mobile Group, and each mobile group constitutes
a single spanning tree.
A switch port can belong to multiple mobile groups, whereas a switch port can belong to
only one non-mobile group. However, a port can
not belong to a mobile and a non-mobile
group at the same time.
Ports can be assigned to mobile groups either statically or dynamically. A port is statically
assigned to a mobile group when one of the following occurs:
• Port by default assigned to default group 1
• Port assigned to a group through
crgp
or
addvp
commands
Although switch ports can belong to multiple mobile groups, it is not possible to assign a port
to two different groups using the
addvp
command. However, a switch port could be assigned
to one mobile group via the
addvp
command and then gain membership to another mobile
group by matching the policy criteria for that group.
A switch port is dynamically assigned to a mobile group after one of its attached devices
matches an AutoTracker policy for that mobile group. An overview of how ports and devices
are dynamically assigned to mobile Groups can be found in
How Ports Are Assigned to Groups
on page 19-2.
Authenticated Groups
Mobile groups provide the added flexibility of user-authentication policies. Using Authentica-
tion Management Console (
AMC
) software, you can configure mobile groups to use log-in
procedures as a means of assigning group membership. Mobile groups that use authentica-
tion are a special group type called an Authenticated Group. Authenticated Groups are
described in more detail in the
Switch Network Services User Manual .
Configuring Mobile Groups
You configure mobile Groups through the
crgp
command. During the
crgp
procedure you
will receive a prompt asking if you want to create a mobile Group
Enable Group Mobility on this Group ? [y/n] (n):
You must answer
Yes
to this prompt to set up a mobile group. After this question, you will be
asked to configure virtual ports and AutoTracker policies for the Group. Documentation for
the full
crgp
procedure can be found in Creating a New Group on page 19-18.