Enable Loopback-Mode Vlan - Extreme Networks ExtremeWare Command Reference Manual

IP Unicast Commands

enable loopback-mode vlan

enable loopback-mode vlan [<vlan name> | all]
Description
Allows a VLAN to be placed in the UP state without an external active port. This allows (disallows) the
VLANs routing interface to become active.
Syntax Description
vlan name Specifies a VLAN name.
all Specifies all VLANs.
Default
N/A
Usage Guidelines
Use this command to specify a stable interface as a source interface for routing protocols. This decreases
the possibility of route flapping, which can disrupt connectivity.
Example
The following command allows the VLAN accounting1 to be placed in the UP state without an external
active port:
enable loopback-mode vlan accounting1
History
This command was first available in ExtremeWare 6.1.
This command was added to the "e" series of switches in ExtremeWare 7.1e.
Platform Availability
This command is available on all platforms.
1746 ExtremeWare 7.7 Command Reference Guide