Extreme Networks ExtremeWare XOS Guide Manual page 153

Types of VLANs
Figure 2: Example of a port-based VLAN on an Extreme Networks switch
Finance
Marketing
Sales
EX_060
For the members of different IP VLANs to communicate, the traffic must be routed by the switch, even
if the VLANs are physically part of the same I/O module. This means that each VLAN must be
configured as a router interface with a unique IP address.
NOTE
On the BlackDiamond 10K switch, the 10 Gbps module must have the serial number 804405-00-09 or higher to
support untagged frames. If your configuration has untagged frames, but the wrong 10 Gbps module, the system
fails that slot; to use the earlier revision of the 10 Gbps module, you must remove the untagged ports from the
VLAN and reset the module. To display the serial number of the module, issue the show slot <slot_number>
command. (All the modules on the Aspen 8810 switch support tagged and untagged frames.)
Spanning Switches with Port-Based VLANs
To create a port-based VLAN that spans two switches, you must do two things:
1 Assign the port on each switch to the VLAN.
2 Cable the two switches together using one port on each switch per VLAN.
Figure 3 illustrates a single VLAN that spans a BlackDiamond switch and another Extreme Networks
switch. All ports on the system 1 switch belong to VLAN Sales. Ports 1 through 29 on the system 2
switch also belong to VLAN Sales. The two switches are connected using slot 8, port 4 on system 1 (the
BlackDiamond switch), and port 29 on system 2 (the other switch).
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ExtremeWare XOS 11.1 Concepts Guide