SMC Networks SMC7816M, SMC7816VSW 32-20, Configuring Protocol-based VLANs

VLAN C OMMANDS
32-20
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.
To configure protocol-based VLANs, follow these steps:
1. First configure VLAN groups for the protocols you want to use
(page32-8). Although not mandatory, we suggest configuring a
separate VLAN for each major protocol running on your network.
Don ot add port members at this time.
2. Create a protocol group for each of the protocols you want to as sign
to a VLAN using the protocol-vlan protocol-group command
(General Configuration mode).
Table 32-7 Protocol-based VLAN Commands
Command Function Mode Page
protocol-vlan
protocol-group
Create a protocol group, specifying the
supported protocols
GC 32-21
protocol-vlan
protocol-group
Maps a protocol group to a VLAN IC 32-22
show protocol-vlan
protocol-group
Shows the configuration of protocol
groups
PE 32-23
show interfaces
protocol-vlan
protocol-group
Shows the interfaces mapped to a
protocol group and the corresponding
VLAN
PE 32-24