Cisco 3020 error - WHat is err-disabled reson lsgroup

[astanislaus]

cisco 3020 report below error message:

*Mar 1 00:07:10: %PM-4-ERR_DISABLE: lsgroup error detected on Gi0/1, putting Gi0/1 in err-disable state

*Mar 1 00:07:10: %PM-4-ERR_DISABLE: lsgroup error detected on Gi0/2, putting Gi0/2 in err-disable state

*Mar 1 00:07:10: %PM-4-ERR_DISABLE: lsgroup error detected on Gi0/3, putting Gi0/3 in err-disable state

------------------ show interfaces status err-disabled ------------------

Port Name Status Reason Err-disabled Vlans

Gi0/1 err-disabled lsgroup

Gi0/2 err-disabled lsgroup

Gi0/3 err-disabled lsgroup

Gi0/4 err-disabled lsgroup

Gi0/5 err-disabled lsgroup

Gi0/6 err-disabled lsgroup

Gi0/7 err-disabled lsgroup

Gi0/8 err-disabled lsgroup

Gi0/9 err-disabled lsgroup

Gi0/10 err-disabled lsgroup

Gi0/11 err-disabled lsgroup

Gi0/12 err-disabled lsgroup

Gi0/13 err-disabled lsgroup

Changing 3020 did not resolve problem

[owillins]

The port manager detected a misconfiguration or misbehavior and placed the interface in an error-disabled state. A recovery is attempted after the configured retry time (the default is 5 minutes). [chars] is the port where the threshold was exceeded.

http://www.cisco.com/en/US/docs/switches/blades/3040/software/release/12.2_44_se/system/message/msg_desc.html