3Com 8807 Configuration Manual page 94

94 C 13: E
HAPTER THERNET
Setting the Link Type for
the Ethernet Port
Adding the Ethernet
Port to Specified VLANs
P C
ORT ONFIGURATION
By default, Ethernet ports works in LAN mode. 10GE Ethernet ports support WAN
mode.
Ethernet port can operate in three different link types, access, hybrid, and trunk
types. The access port carries one VLAN only, used for connecting to the user's
computer. The trunk port can belong to more than one VLAN and receive/send the
packets on multiple VLANs, used for connection between the switches. The hybrid
port can also carry more than one VLAN and receive/send the packets on multiple
VLANs, used for connecting both the switches and user's computers. The
difference between the hybrid port and the trunk port is that the hybrid port
allows the packets from multiple VLANs to be sent without tags, but the trunk
port only allows the packets from the default VLAN to be sent without tags.
Perform the following configuration in Ethernet port view.
Table 78 Setting the link type for the Ethernet port
Operation
Configure the port as access port
Configure the port as hybrid port
Configure the port as trunk port
Restore the default link type, that is, the access port
You can configure three types of ports concurrently on the same switch, but you
cannot switch between trunk port and hybrid port. You must turn it first into
access port and then set it as other type. For example, you cannot configure a
trunk port directly as hybrid port, but first set it as access port and then as hybrid
port.
By default, the port is access port.
The following commands are used for adding an Ethernet port to a specified
VLAN. The access port can only be added to one VLAN, while the hybrid and trunk
ports can be added to multiple VLANs.
Perform the following configuration in Ethernet port view.
Table 79 Adding the Ethernet port to specified VLANs
Operation
Add the current access port to a specified
VLAN
Add the current hybrid port to specified
VLANs
Add the current trunk port to specified VLANs port trunk permit vlan { vlan-id-list | all }
Remove the current access port from to a
specified VLAN
Remove the current hybrid port from to
specified VLANs
Remove the current trunk port from specified
VLANs
Command
port link-type access
port link-type hybrid
port link-type trunk
undo port link-type
Command
port access vlan vlan-id
port hybrid vlan vlan-id-list { tagged |
untagged }
undo port access vlan
undo port hybrid vlan vlan-id-list
undo port trunk permit vlan { vlan-id-list |
all }