Thursday, September 26, 2019

errdisable issues on 2960x

So we had a bad LAN controller to a HVAC system. One of the techs had issues with a port so they moved it twice to try and fix the issue of no connectivity to the HVAC system. I went in to check on this after the third attempt and I saw the three ports that were tested were in errdisabled state.

I've tried shut, no shut. Also tried to have errdisable recovery and errdisable recovery interval 300. After these few things the ports remain down and disabled.

Any ideas?

Port Name Status Reason Err-disabled Vlans

Gi2/0/38 err-disabled loopback

Gi2/0/42 err-disabled link-flap

Gi2/0/44 err-disabled link-flap

wnms-idfo-poe(config)#errdisable recovery cause psecure-violation

wnms-idfo-poe(config)#errdisable recovery interval 300

wnms-idfo-poe(config)#

wnms-idfo-poe(config)#end

wnms-idfo-poe#

wnms-idfo-poe#

wnms-idfo-poe#sh errdisable recovery

ErrDisable Reason Timer Status

----------------- --------------

arp-inspection Disabled

bpduguard Disabled

channel-misconfig (STP) Disabled

dhcp-rate-limit Disabled

dtp-flap Disabled

gbic-invalid Disabled

inline-power Disabled

link-flap Disabled

mac-limit Disabled

loopback Disabled

pagp-flap Disabled

port-mode-failure Disabled

pppoe-ia-rate-limit Disabled

psecure-violation Enabled

security-violation Disabled

sfp-config-mismatch Disabled

small-frame Disabled

storm-control Disabled

udld Disabled

vmps Disabled

psp Disabled

dual-active-recovery Disabled

evc-lite input mapping fa Disabled

Recovery command: "clear Disabled



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