Protocol-Based Vlan Configuration; Introduction To Protocol-Based Vlan - 3Com S7906E Configuration Manual

To do...
Enter
Enter
Ethernet
Ethernet
interface view
interface
view or
Enter port
port group
group view
view
Configure the link type of
the port(s) as hybrid
Configure the current
hybrid port(s) to permit
packets of specific
MAC-based VLANs to pass
through
Enable MAC-based VLAN
Configure VLAN matching
precedence
Enable MAC-based
dynamic port assignment
Disable the default VLAN of
the current port from
forwarding packets with
unknown source MAC
addresses that cannot be
matched to any MAC
address-to-VLAN mapping

Protocol-Based VLAN Configuration

Introduction to Protocol-Based VLAN

Protocol-based VLANs are only applicable on hybrid ports.
In this approach, inbound packets are assigned to different VLANs based on their protocol types and
encapsulation formats. The protocols that can be used for VLAN assignment 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 is defined by a protocol template comprised of encapsulation format and
protocol type. A port can be associated with multiple protocol templates. An untagged packet reaching a
port associated with protocol-based VLANs will be processed as follows.
Use the command...
interface interface-type
interface-number
port-group manual
port-group-name
port link-type hybrid
port hybrid vlan vlan-id-list
{ tagged | untagged }
mac-vlan enable
vlan precedence { mac-vlan |
ip-subnet-vlan }
mac-vlan trigger enable
port pvid diable
1-12
Remarks
Use either command.
In Ethernet interface view, the
subsequent configurations apply
only to the current port; in port
group view, the subsequent
configurations apply to all ports in
the port group.
Required
Required
By default, a hybrid port only
permits the packets of VLAN 1 to
pass through.
Required
Disabled by default
Optional
By default, VLANs are
preferentially matched based on
MAC addresses.
Optional
Disabled by default
Optional
By default, when a port receives a
packet with an unknown source
MAC address that cannot be
matched to any MAC
address-to-VLAN mapping, it
forwards the packet in its default
VLAN.