Configuring Protocol-Based Vlans; Table 4-75 Protocol-Based Vlan Commands - SMC Networks 8126PL2-F - annexe 1 Management Manual

4
Command Line Interface
Default Setting
None
Command Mode
Privileged Executive
Example
Console#show vlan private-vlan
Primary Secondary
-------- -----------
5
5
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.
Command
protocol-vlan protocol-group Create a protocol group, specifying the supported protocols GC
protocol-vlan protocol-group Maps a protocol group to a VLAN
show protocol-vlan
protocol-group
show interfaces
protocol-vlan protocol-group
To configure protocol-based VLANs, follow these steps:
1. First configure VLAN groups for the protocols you want to use (page 4-221).
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).
3. Then map the protocol for each interface to the appropriate VLAN using the
protocol-vlan protocol-group command (Interface Configuration mode).
Note:
Traffic which matches IP Protocol Ethernet Frames is mapped to the VLAN
(VLAN 1) that has been configured with the switch's administrative IP. IP Protocol
4-240
Type
----------
primary
6 community

Table 4-75 Protocol-based VLAN Commands

Function
Shows the configuration of protocol groups
Shows the interfaces mapped to a protocol group and the
corresponding VLAN
Interfaces
------------------------------
Eth1/ 3
Eth1/ 4 Eth1/ 5
Mode Page
4-241
IC 4-241
PE 4-242
PE 4-243