enable lbdetect port
ExtremeWare Software 7.3.0 Command Reference Guide 269
enable lbdetect port
enable lbdetect port <portlist> [retry-timeout<seconds>]
Description
Enables the system to detect loops between ports. If a port is looped, it disables the port. Every N
seconds, it re-enables the port and tries again, unless “none” is specified
Syntax Description
Default
Disabled.
Usage Guidelines
Each port may enable loop detection. This optional feature detects that a port has been looped back to
the local system. If a loopback is detected, the port is disabled. Note that loopbacks may exist between
different ports. The feature will disable any port that both has the feature enabled, and receives an
LACP message that was sent from the local system.
If no timeout is specified, the port is disabled permanently if there is a loop detected. Otherwise, the
port is periodically re-enabled, and tested for loops every N seconds.
Example
The following example enables loopback detection on ports 9 through 12:
enable lbdetect port 9-12
History
This command was first available in ExtremeWare 7.0.0.
Platform Availability
This command is available on all platforms.
portlist Specifies one or more ports or slots and ports to be grouped to the master
port. On a modular switch, can be a list of slots and ports. On a stand-alone
switch, can be one or more port numbers. May be in the form 1, 2, 3-5, 2:*,
2:5, 2:6-2:8.
retry-timeout Specifies a time in seconds to check for loops on the ports.
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