Protocol-Based Vlan Configuration - 3Com Switch 4800G 24-Port Configuration Manual

92 C 9: VLAN C
HAPTER
Protocol-Based VLAN
Configuration
Introduction to
Protocol-Based VLAN
ONFIGURATION
To do...
Enter system view
Associate MAC addresses
with a VLAN
Enter Enter Ethernet
Ethernet interface view
interface
Enter port
view or
group view
port group
view
Configure the link type of
the port(s) as hybrid
Configure the current hybrid
port(s) to permit packets of
specific MAC address-based
VLANs
Enable MAC address-based
VLAN
Configure VLAN matching
precedence
n
Protocol-based VLANs are only applicable to Hybrid ports.
In this approach, inbound packets are assigned with different VLAN IDs based on
their protocol type and encapsulation format. The protocols that can be used to
categorize VLANs include: IP, IPX, and AppleTalk (AT). The encapsulation formats
include: Ethernet II, 802.3 raw, 802.2 LLC, and 802.2 SNAP.
A protocol-based VLAN can be defined by a protocol template, which is
determined by encapsulation format and protocol type. A port can be associated
to multiple protocol templates. An untagged packet (that is, packet carrying no
VLAN tag) reaching a port associated with a protocol-based VLAN will be
processed as follows.
If the packet matches a protocol template, the packet will be tagged with the
■
VLAN ID of the protocol-based VLAN defined by the protocol template.
If the packet matches no protocol template, the packet will be tagged with the
■
default VLAN ID of the port.
Use the command...
system-view
mac-vlan mac-address
mac-addr [ mask mac-mask ]
vlan vlan-id [ priority
priority ]
interface interface-type
interface-number
port-group { manual
port-group-name |
aggregation agg-id }
port link-type hybrid
port hybrid vlan vlan-id-list
{ tagged | untagged }
mac-vlan enable
vlan precedence { mac-vlan |
ip-subnet-vlan }
Remarks
-
Required
Use either command.
The configuration performed
in Ethernet interface view
applies to the current port
only; the configuration
performed in port group view
applies to all the ports in the
port group.
Required
Required
By default, a hybrid port only
permits the packets of VLAN 1.
Required
Disabled by default
Optional
By default, VLANs are
preferentially matched based
on MAC addresses.