MSM7xx Controllers Configuration Guide v6.4.0

By assigning a different profile name to AP groups, traffic can be split between controllers. In this
example, the APs are split into two groups:
• Group 1: The VSC binding is configured with Egress network set to Net1, putting traffic from
this group onto VLAN range 10-30.
• Group 2: The VSC binding is configured with Egress network set to Net2, putting traffic from
this group onto VLAN range 31-50.
MTM uses a round-robin mechanism to distribute traffic across the VLANs range. The first wireless
user is assigned to the first VLAN in the range. Subsequent users are assigned to the next VLAN
in the range. When the range is exhausted, assignment starts with the first VLAN again. For
example, if the VLAN range is defined as VLAN IDs 1 to 20, the first user is assigned to VLAN 1.
The second is assigned to VLAN 2. The 21st user is assigned to VLAN 1 again. Although VLAN
assignment is sequential through the range, from the users point of view, VLAN assignment will
appear to be random.
Configuration overview
The following sections provide a summary of the configuration settings needed to enable MTM
support only. It is assumed that installation and configuration of all controllers and APs so that they
are fully operational on the network was performed as explained in the other chapters in this guide.
Controller 1 configuration
Mobility domain
1. Select Controller >> Management > Device discovery.
• Select Mobility controller discovery.
• Select This is the primary mobility controller.
(For a complete screenshot of this page, see “Defining the mobility domain” (page 291).)
2. Select Save.
Scenario 6: Distributing traffic using VLAN ranges 325