HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 2 - LAN Switching Command Refer - Page 147
loopback-detection enable, Syntax, Default, Views, Predefined user roles, Parameters, Usage guidelines
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Use undo loopback-detection action to restore the default. Syntax In Ethernet interface view: loopback-detection action { block | no-learning | shutdown } undo loopback-detection action In aggregate interface view: loopback-detection action shutdown undo loopback-detection action Default When the device detects a loop on a port, it generates a log but performs no action on the port. Views Ethernet interface view, aggregate interface view Predefined user roles network-admin Parameters block: Enables the block mode. If a loop is detected, the device disables MAC address learning and blocks inbound traffic on the port, in addition to generating a log. Aggregate interfaces do not support this keyword. no-learning: Enables the no-learning mode. If a loop is detected, the device generates a log and disables MAC address learning on the port. Aggregate interfaces do not support this keyword. shutdown: Enables the shutdown mode. If a loop is detected, the device generates a log and shuts down the port. Usage guidelines Use this command to configure the loop protection action on a per-port basis. To configure the loop protection action globally, use the loopback-detection global action command. The global configuration applies to all ports. The per-port configuration applies to the individual ports. The per-port configuration takes precedence over the global configuration. Example # Set the loop protection action to shutdown on port Ten-GigabitEthernet 1/1/5. system-view [Sysname] interface ten-gigabitethernet 1/1/5 [System-Ten-GigabitEthernet1/1/5] loopback-detection action shutdown Related commands • display loopback-detection • loopback-detection global action loopback-detection enable Use loopback-detection enable to enable loop detection on a port. 140