3Com S7906E - Switch, Configuration Manual

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1-12
To do... Use the command... Remarks
Enter
Ethernet
interface view
interface interface-type
interface-number
Enter
Ethernet
interface
view or
port group
view
Enter port
group view port-group manual
port-group-name
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.
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-based VLANs to pass
through
port hybrid vlan vlan-id-list
{ tagged | untagged }
Required
By default, a hybrid port only
permits the packets of VLAN 1 to
pass through.
Enable MAC-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.
Enable MAC-based
dynamic port assignment
mac-vlan trigger enable
Optional
Disabled by default
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
port pvid diable
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.
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.