3Com Switch 4800G 24-Port Configuration Manual page 93

Configuring a
Protocol-Based VLAN
c
The port processes a tagged packet (that is, a packet carrying a VLAN tag) in the
same way as it processes packets of a port-based VLAN.
If the port is configured to permit the VLAN identified by this VLAN tag, the
■
port forwards the packet.
If the port is configured to deny the VLAN identified by this VLAN tag, the port
■
discards the packet.
This feature is mainly used to bind the service type with VLAN for ease of
management and maintenance.
Follow these steps to configure a protocol-based VLAN:
To do...
Enter system view
Enter VLAN view
Configure the
protocol-based VLAN and
specify the protocol template
Exit the VLAN view
Enter Enter Ethernet
Ethernet port view
port view
Enter port group
or port
view
group
view
Configure the port link type
as Hybrid
Allow the packets of
protocol-based VLANs to
pass through the current
Hybrid port in untagged way
(with the tags of the packets
stripped)
Configure the association
between the Hybrid port and
the protocol-based VLAN
CAUTION:
At present, the AppleTalk-based protocol template cannot be associated with a
■
port on an Switch 4800G.
Do not configure both the dsap-id and ssap-id arguments in the
■
protocol-vlan command as 0xe0 or 0xff when configuring the user-defined
Protocol-Based VLAN Configuration
Use the command...
system-view
vlan vlan-id
protocol-vlan
[ protocol-index ] { at | ipv4 |
ipv6 | ipx { ethernetii | llc |
raw | snap } | mode
{ ethernetii etype etype-id |
llc { dsap dsap-id [ ssap
ssap-id ] | ssap ssap-id } | snap
etype etype-id } }
quit
interface interface-type
interface-number
port-group { manual
port-group-name |
aggregation agg-id }
port link-type hybrid
port hybrid vlan vlan-id-list
untagged
port hybrid protocol-vlan
vlan vlan-id { protocol-index
[ to protocol-end ] | all }
93
Remarks
-
Required
If the specified VLAN does not
exist, this command creates
the VLAN and then enters its
view.
Required
Required
Use either command
In Ethernet port view, the
subsequent configurations
only apply to the current port;
in port group view, the
subsequent configurations
apply to all ports in the port
group
Required
Required
Required