Show subnet-vlan, Configuring mac based vlans – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 459

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Brocade 6910 Ethernet Access Switch Configuration Guide

409

53-1002581-01

Configuring MAC Based VLANs

20

Eth 1/2 192.168.12.128 255.255.255.192

Eth 1/3 192.168.12.192 255.255.255.224

Eth 1/4 192.168.12.224 255.255.255.240

Eth 1/5 192.168.12.240 255.255.255.248

Eth 1/6 192.168.12.248 255.255.255.252

Eth 1/7 192.168.12.252 255.255.255.254

Eth 1/8 192.168.12.254 255.255.255.255

Eth 1/9 192.168.12.255 255.255.255.255

Console#

show subnet-vlan

This command displays IP Subnet VLAN assignments.

Command Mode

Privileged Exec

Command Usage

Use this command to display subnet-to-VLAN mappings.

The last matched entry is used if more than one entry can be matched.

Example

The following example displays all configured IP subnet-based VLANs.

Console#show subnet-vlan

IP Address Mask VLAN ID Priority

--------------- --------------- ------- --------

192.168.12.0 255.255.255.128 1 0

192.168.12.128 255.255.255.192 3 0

192.168.12.192 255.255.255.224 4 0

192.168.12.224 255.255.255.240 5 0

192.168.12.240 255.255.255.248 6 0

192.168.12.248 255.255.255.252 7 0

192.168.12.252 255.255.255.254 8 0

192.168.12.254 255.255.255.255 9 0

192.168.12.255 255.255.255.255 10 0

Console#

Configuring MAC Based VLANs

When using IEEE 802.1Q port-based VLAN classification, all untagged frames received by a port
are classified as belonging to the VLAN whose VID (PVID) is associated with that port.

When MAC-based VLAN classification is enabled, the source address of untagged ingress frames
are checked against the MAC address-to-VLAN mapping table. If an entry is found for that address,
these frames are assigned to the VLAN indicated in the entry. If no MAC address is matched, the
untagged frames are classified as belonging to the receiving port’s VLAN ID (PVID).

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