92 CHAPTER 9: VLAN CONFIGURATION
Protocol-Based VLAN
Configuration
Introduction to
Protocol-Based VLAN
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.
To do… Use the command… Remarks
Enter system view system-view -
Associate MAC addresses
with a VLAN
mac-vlan mac-address
mac-addr [ mask mac-mask ]
vlan vlan-id [ priority
priority ]
Required
Enter
Ethernet
interface
view or
port group
view
Enter Ethernet
interface view
interface interface-type
interface-number
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.
Enter port
group view
port-group { manual
port-group-name |
aggregation agg-id }
Configure the link type of
the port(s) as hybrid
port link-type hybrid Required
Configure the current hybrid
port(s) to permit packets of
specific MAC address-based
VLANs
port hybrid vlan vlan-id-list
{ tagged | untagged }
Required
By default, a hybrid port only
permits the packets of VLAN 1.
Enable MAC address-based
VLAN
mac-vlan enable Required
Disabled by default
Configure VLAN matching
precedence
vlan precedence { mac-vlan |
ip-subnet-vlan }
Optional
By default, VLANs are
preferentially matched based
on MAC addresses.
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