Qtech QSW-8200-28T-POEAC- DC Команды интерфейса уровня 3 онлайн [6/47] 481628

User Manual

Chapter 1. Commands for Layer 3 Forwarding 6

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 Function: Create a Loopback interface; the no operation of this command will delete

the specified Loopback interface.

 Parameters: <loopback-id> is the ID of the new created Loopback interface.

 Default: There is no Loopback interface in factory defaults.

 Command Mode: Global Configuration Mode.

 Usage Guide: IDs of the VLANs taken up by a Loopback interfaces start from 1006. If

Loopback take up a VLAN whose ID is larger than or equal with1006, users are

forbidden to configure the corresponding VLAN. If a VLAN after VLAN 1006 is already

configured, such as VLAN 1006, then the Loopback interface will take up the first

available VLAN after that VLAN, such as VLAN 1007.

 Examples: Enter the interface configuration mode of Loopback 1.

 Switch(config)#interface loopback 1

 Switch(Config-if-Loopback1)#

1.1.4 interface vlan

 Command: interface vlan <vlan-id>

 no interface vlan <vlan-id>

 Function: Create a VLAN interface (a Layer 3 interface); the “no interface vlan <vlan-

id>” command deletes the Layer 3 interface specified.

 Parameters: <vlan-id> is the VLAN ID of the established VLAN, ranging from 1 to 4094.

 Default: No Layer 3 interface is configured upon switch shipment.

 Command mode: Global Mode

 Usage Guide: When creating a VLAN interface (Layer 3 interface), VLANs should be

configured first, for details, see the VLAN chapters. When VLAN interface (Layer 3

interface) is created with this command, the VLAN interface (Layer 3 interface)

configuration mode will be entered. After the creation of the VLAN interface (Layer 3

interface), interface vlan command can still be used to enter Layer 3 Port Mode.

 Example: Create a VLAN interface (layer 3 interface).

 Switch(config)#interface vlan 1

 Switch(Config-if-Vlan1)#

1.1.5 no interface IFNAME

 Command: no interface IFNAME

 Function: Delete the interface, deal with the interface vlan and interface loopback only.

 Parameters: IFNAME: interface name.

 Command Mode: Global mode.

 Usage Guide: This command is used to delete the layer 3 interface. It can deal with the

situation that the interface name is spelt in special way. IFNAME can match multiple

ways, such as vlan1, Vlan1, v1, V1 and etc.

 Example: Delete interface vlan1.

 (config)# no interface vlan1