Port Trunk Permit Vlan - 3Com S7906E Command Reference Manual

# Configure Layer-2 aggregate interface Bridge-aggregation 1 and its member ports as hybrid ports.
<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] port link-type hybrid

port trunk permit vlan

Syntax
port trunk permit vlan { vlan-id-list | all }
undo port trunk permit vlan { vlan-id-list | all }
View
Ethernet interface view, port group view, Layer-2 aggregate interface view,
Default Level
2: System level
Parameters
vlan-id-list: VLANs that the trunk port(s) will be assigned to. This argument is expressed in the format of
[vlan-id1 [ to vlan-id2 ] ]&<1-10>, where vlan-id ranges from 1 to 4094 and &<1-10> indicates that you
can specify up to 10 VLAN IDs or VLAN ID ranges.
all: Permits all VLANs to pass through the trunk port(s). On GVRP-enabled trunk ports, you must
configure the port trunk permit vlan all command to ensure that the traffic of all dynamically registered
VLANs can pass through. However, When GVRP is disabled on a port, you are discouraged to
configure the command on the port. This is to prevent users of unauthorized VLANs from accessing
restricted resources through the port.
Description
Use the port trunk permit vlan command to assign the current trunk port(s) to the specified VLAN(s).
Use the undo port trunk permit vlan command to remove the trunk port(s) from the specified VLANs.
By default, a trunk port allows only packets from VLAN 1 to pass through.
A trunk port can carry multiple VLANs. If you execute the port trunk permit vlan command multiple
times, the VLANs the trunk port carries are the set of VLANs specified by vlan-id-list in each execution.
Note that on a trunk port, only traffic of the default VLAN can pass through untagged.
In Ethernet interface view, this command only applies to the current port.
In port group view, this command applies to all ports in the port group. For information about port
groups, refer to Ethernet Interface Configuration in the Access Volume.
In Layer-2 aggregate interface view, this command applies to the Layer-2 aggregate interface and
all its member ports. After you perform the configuration, the system starts applying the
configuration to the aggregate interface and its aggregation member ports. If the system fails to do
that on the aggregate interface, it stops applying the configuration to the aggregation member ports.
If it fails to do that on an aggregation member port, it simply skips the port and moves to the next
port. For information about Layer-2 aggregate interfaces, refer to Link Aggregation Configuration in
the Access Volume.
Related commands: port link-type.
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