3Com 5500G-EI Command Reference Guide - Page 84

84 CHAPTER 3: USING VLAN COMMANDS By default, when all Ethernet ports are in DOWN status in VLAN interface, the VLAN interface is in DOWN status and is disabled. When there is one or more Ethernet ports in VLAN interface are in UP status, the VLAN interface is UP. This command can be used to start the interface after the related parameters and protocols of VLAN interface are set. Or when the VLAN interface fails, the interface can be shut down first and then restarted, in this way, the interface may be restored to normal status. Shutting down or starting VLAN interface will not take any effect on any Ethernet port of this VLAN. Example Restart interface after shutting down the interface. system-view System View: return to User View with Ctrl+Z. [SW5500]interface vlan-interface2 [SW5500-Vlan-interface2]shutdown [SW5500-Vlan-interface2]undo shutdown vlan Syntax vlan vlan_id undo vlan vlan_id { [to vlan_id ] | all } View System View Parameter vlan_id: Enter the ID of the VLAN you want to configure, in the range 1 to 4094. all: Delete all VLANs. Description Use the vlan command to enter the VLAN view, and use the related configuration commands. Use the undo vlan command to exit from the specified VLAN. VLAN 1 is default VLAN and cannot be deleted. Related commands: display vlan. Example To enter VLAN 1 view, enter the following: system-view System View: return to User View with Ctrl+Z. [SW5500]vlan 1