Errdisable Detect Cause - Cisco Catalyst 2950 Command Reference Manual

errdisable detect cause

errdisable detect cause
Use the errdisable detect global configuration command to enable error disable detection. Use the no
form of this command to disable this feature.
Syntax Description all
dhcp-rate-limit
dtp-flap
gbic-invalid
link-flap
loopback
pagp-flap
vmps
Defaults The default is all, enabled for all causes.
Command Modes Global configuration
Command History Release
12.1(6)EA2
12.1(9)EA1
12.1(19)EA1
12.1(14)EA1
Usage Guidelines A cause (for example, dtp-flap) is the reason why the error-disabled state occurred. When a cause is
detected on an interface, the interface is placed in error-disabled state, an operational state similar to
link-down state. If you do not enable errdisable recovery for the cause, the interface stays in the
error-disabled state until you enter the shutdown and no shutdown interface configuration commands.
If you enable the recovery for a cause, the interface is brought out of the error-disabled state and allowed
to retry the operation again when all the causes have timed out.
You must enter the shutdown and then the no shutdown commands to manually recover an interface
from the error-disabled state.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
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errdisable detect cause {all | dhcp-rate-limit | dtp-flap | gbic-invalid | link-flap | loopback |
pagp-flap | vmps}
no errdisable detect cause {all | dhcp-rate-limit | dtp-flap | gbic-invalid | link-flap | loopback |
pagp-flap | vmps}
Enable detection for all error disable causes.
Enable detection for the DHCP cause.
Enable detection for the Dynamic Trunking Protocol (DTP)-flap cause.
Enable error detection for an invalid GBIC error-disable cause.
Enable detection for the link flap cause.
Enable detection for the loopback cause.
Enable detection for the Port Aggregation Protocol (PAgP)-flap cause.
Enable error detection for the VLAN Membership Policy Server (VMPS).
Modification
This command was introduced.
The bpduguard, rootguard, and udld keywords were removed. The
gbic-invalid keyword was added.
The dhcp-rate-limit and loopback keywords were added.
The loopback keyword was added.
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
OL-10102-01