Dell Force10 S4810P FTOS Command Line Reference Guide for the S4810 System FTO - Page 817
slot/port, FTOS Configuration Guide, Spanning Tree. The keywords
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Parameters Defaults Command Modes Command History Usage Information Related Commands switchport backup interface {gigabit slot/port | tengigabit slot/port | fortyGigE slot/port | port-channel number} command. backup interface gigabit tengigabit fortyGigE port-channel slot/port Use this option to configure a redundant Layer 2 link without using Spanning Tree. The keywords backup interface configures a backup port so that if the primary port fails, the backup port changes to the up state. If the primary later comes up, it becomes the backup. Enter the keyword gigabit if the backup port is a 1G port. Enter the keyword tengigabit if the backup port is a 10G port. Enter the keyword fortyGigE if the backup port is a 40G port. Enter the keywords port-channel if the backup port is a static or dynamic port channel. Specify the line card and port number of the backup port. Disabled (The interface is in Layer 3 mode.) INTERFACE Version 8.3.11.1 Version 8.5.1.0 Version 8.4.1.0 Version 8.3.7.0 Version 8.1.1.0 Version 7.7.1.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.2.1.0 Introduced on the Z9000. Added support for 4-port 40G line cards on ExaScale. Added support for port-channel interfaces (the port-channel number option). Introduced on the S4810. Introduced on the E-Series ExaScale. Added the backup interface option. Introduced on the S-Series. Introduced on the C-Series. Introduced on the E-Series. If an IP address or VRRP group is assigned to the interface, you cannot use the switchport command on the interface. To use the switchport command on an interface, only the no ip address and no shutdown statements must be listed in the show config output. When you enter the switchport command, the interface is automatically added to the default VLAN. To use the switchport backup interface command on a port, you must first enter the switchport command. For more information, refer to the "Configuring Redundant Links" section in the "Layer 2" chapter of the FTOS Configuration Guide. interface port-channel - creates a port channel interface. show interfaces switchport - displays information about switchport interfaces. 817
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