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NETGEAR M4500 Series Switches CLI Command Reference Manual 617
5.30. Interface Error Disable and Auto Recovery
Interface error disable automatically disables an interface when an error is detected; no traffic is allowed until
the interface is either manually re-enabled or, if auto recovery is configured, the configured auto recovery time
interval has passed.
For interface error disable and auto recovery, an error condition is detected for an interface, the interface is
placed in a diagnostic disabled state by shutting down the interface. The error disabled interface does not allow
any traffic until the interface is re-enabled. The error disabled interface can be manually enabled. Alternatively
administrator can enable auto recovery feature. Auto Recovery re-enables the interface after the expiry of
configured time interval.
5.30.1. errdisable recovery cause
Use this command to enable auto recovery for a specified cause or all causes. When auto recovery is enabled,
ports in the diag-disable state are recovered (link up) when the recovery interval expires. If the interface
continues to experience errors, the interface may be placed back in the diag-disable state and disabled (link
down). Interfaces in the diag-disable state can be manually recovered by entering the no shutdown command
for the interface.
Format errdisable recovery cause {all | arp-inspection | bpduguard | bcast-storm | bpdustrom | dhcp-rate-
limit | mcast-storm | port-security | sfp-mismatch | ucast-storm | udld | link-flap | loop-detection}
Default None
Mode Global Config
5.30.2. no errdisable recovery cause
Use this command to disable auto recovery for a specific cause. When disabled, auto recovery will not occur for
interfaces in a diag-disable state due to that cause.
Format no errdisable recovery cause {all | arp-inspection | bpduguard | bcast-storm | bpdustrom | dhcp-
rate-limit | mcast-storm | port-security | sfp-mismatch | ucast-storm | udld | link-flap | loop-
detection}
Mode Global Config
5.30.3. errdisable recovery interval
Use this command to configure the auto recovery time interval. The auto recovery time interval is common for
all causes. When the recovery interval expires, the system attempts to bring interfaces in the diag-disable state
back into service (link up).
Format errdisable recovery interval <30-86400>