CLI Reference Guide-R05

Chapter 19 | VLAN Commands
Configuring Protocol-based VLANs
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Interface Old VID New VID
--------- ------- -------
Eth 1/ 1 10 100
Console#
show vlan-translation This command displays the configuration settings for VLAN translation.
Syntax
show vlan-translation [interface interface]
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-12)
Command Mode
Privileged Exec
Example
Console#show vlan-translation
Interface Old VID New VID
--------- ------- -------
Eth 1/ 1 10 100
Console#
Configuring Protocol-based VLANs
The network devices required to support multiple protocols cannot be easily
grouped into a common VLAN. This may require non-standard devices to pass
traffic between different VLANs in order to encompass all the devices participating
in a specific protocol. This kind of configuration deprives users of the basic benefits
of VLANs, including security and easy accessibility.
To avoid these problems, you can configure this switch with protocol-based VLANs
that divide the physical network into logical VLAN groups for each required
protocol. When a frame is received at a port, its VLAN membership can then be
determined based on the protocol type in use by the inbound packets.