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EES4710BD 10 Slots L2/L3/L4 Chassis Switch
Command: switchport trunk allowed vlan {<vlan-list>|all}
no switchport trunk allowed vlan
Function: Sets trunk port to allow VLAN traffic; the “no switchport trunk allowed vlan”
command restores the default setting.
Parameters: <vlan-list> is the list of VLANs allowed to pass through in the specified Trunk port;
keyword “all” allows all VLAN traffic on the Trunk port.
Command mode: Interface Mode
Default: Default is Trunk port allowing all VLAN traffic
Usage Guide: The user can use this command to allow VLAN traffic to pass though the trunk port;
traffic of VLANs not included are prohibited.
Example: Setting the Trunk port to allow traffic of VLAN1, 3, 5-20.
Switch(Config)#interface ethernet 1/5
Switch(Config-ethernet1/5)#switchport mode trunk
Switch(Config-ethernet1/5)#switchport trunk allowed vlan 1;3;5-20
Switch(Config-ethernet1/5)#exit
Command: switchport trunk native vlan <vlan-id>
no switchport trunk native vlan
Function: Sets the PVID for Trunk port; the “no switchport trunk native vlan” command restores
the default setting.
Parameters: <vlan-id> is the PVID for Trunk port.
Command mode: Interface Mode
Default: The default PVID of Trunk port is 1.
Usage Guide: PVID concept is defined in IEEE 802.1Q. PVID of Trunk ports are used to tag
untagged frames. When a untagged frame enters a Trunk port, the port will tag the untagged frame
with the native PVID set with this command for VLAN forwarding.
Example: Setting the native vlan for a Trunk port to 100.
Switch(Config)#interface ethernet 1/5
Switch(Config-ethernet1/5)#switchport mode trunk
Switch(Config-ethernet1/5)#switchport trunk native vlan 100
Switch(Config-ethernet1/5)#exit
Command: vlan ingress disable
no vlan ingress disable
Function: Disables the VLAN ingress rule for a port; the “no vlan ingress disable” command
enables the ingress rule.