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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
(page 4-231). Although not mandatory, we suggest configuring a
separate VLAN for each major protocol running on your network.
Do not add port members at this time.
2. Create a protocol group for each of the protocols you want to assign
to a VLAN using the
protocol-vlan protocol-group
command
(General Configuration mode).
Table 4-60 Protocol-based VLAN Commands
Command
Function
Mode Page
protocol-vlan
protocol-group
Create a protocol group, specifying the
supported protocols
GC
4-243
protocol-vlan
protocol-group
Maps a protocol group to a VLAN
IC
4-244
show protocol-vlan
protocol-group
Shows the configuration of protocol
groups
PE
4-245
show interfaces
protocol-vlan
protocol-group
Shows the interfaces mapped to a protocol
group and the corresponding VLAN
PE
4-246
Summary of Contents for 8708L2
Page 2: ......
Page 24: ...TABLES xxiv ...
Page 28: ...FIGURES xxviii ...
Page 290: ...CONFIGURING THE SWITCH 3 238 ...
Page 584: ...COMMAND LINE INTERFACE 4 294 ...
Page 592: ...TROUBLESHOOTING B 4 ...
Page 605: ......