Brocade BigIron RX Series Configuration Guide User Manual
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BigIron RX Series Configuration Guide
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Configuring super aggregated VLANs
11
To configure aggregated VLANs, configure tagged and untagged VLANs on the edge device, then
configure the aggregated and other VLANs on the core device. Perform the following tasks.
1. On each edge device, configure a separate port-based VLAN for each client connected to the
edge device. In each client VLAN:
•
Add the port connected to the client as an untagged port.
•
Add the port connected to the core device (the device that will aggregate the VLANs) as a
tagged port. This port must be tagged because all the client VLANs share the port as an
uplink to the core device.
For example, to configure device A in
on page 303, enter commands such as the
following.
BigIron RX(config)# vlan 101
BigIron RX(config-vlan-101)# tagged ethernet 2/1
BigIron RX(config-vlan-101)# untagged ethernet 1/1
BigIron RX(config-vlan-101)# exit
BigIron RX(config)# vlan 102
BigIron RX(config-vlan-102)# tagged ethernet 2/1
BigIron RX(config-vlan-102)# untagged ethernet 1/2
BigIron RX(config-vlan-102)# exit
BigIron RX(config)# vlan 103
BigIron RX(config-vlan-103)# tagged ethernet 2/1
BigIron RX(config-vlan-103)# untagged ethernet 1/3
BigIron RX(config-vlan-103)# exit
BigIron RX(config)# vlan 104
BigIron RX(config-vlan-104)# tagged ethernet 2/1
BigIron RX(config-vlan-104)# untagged ethernet 1/4
BigIron RX(config-vlan-104)# exit
BigIron RX(config)# vlan 105
BigIron RX(config-vlan-105)# tagged ethernet 2/1
BigIron RX(config-vlan-105)# untagged ethernet 1/5
BigIron RX(config-vlan-105)# exit
BigIron RX(config)# write memory
Syntax: [no] vlan <vlan-id>
Syntax: [no] untagged | tagged ethernet <slot-number>/<port-number> [to
<slot-number>/<port-number> | ethernet <slot-number>/<port-number>]
The tagged command adds the port that the device uses for the uplink to the core device.
The untagged command adds the ports connected to the individual clients.
2. On each core device:
•
Enable VLAN aggregation. This support allows the core device to add an additional tag to
each Ethernet frame that contains a VLAN packet from the edge device. The additional tag
identifies the aggregate VLAN (the path). However, the additional tag can cause the frame
to be longer than the maximum supported frame size. The larger frame support allows
Ethernet frames up to 1530 bytes long.
NOTE
Enable the VLAN aggregation option only on the core devices.