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New Member

ME-3400 port in errdisable

Hi,

We have several ME-3400 switches in our network. Recently a couple of them have made interfaces go into errordisable mode for reasons we don't quite understand. This happens when the equipment connected to the interface is restarted. Here is the logged error:

.Aug 21 08:49:15 METDST: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up

.Aug 21 08:49:16 METDST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up

.Aug 21 08:49:16 METDST: %PM-4-ERR_DISABLE: invalid-policy error detected on Fa0/3, putting Fa0/3 in err-disable state

.Aug 21 08:49:16 METDST: pm_start_recover: invalid operErrReason for Fa0/3

.Aug 21 08:49:17 METDST: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

.Aug 21 08:49:18 METDST: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down

The error indicates that there is some sort of problem with the policy attached to the interface. Here's the interface policy-map:

switch#show policy-map int fast0/3

FastEthernet0/3

  Service-policy input: 50Mbit-inn

    Class-map: 50Mbit-inn (match-all)

      0 packets

      Match: access-group 102      

      police cir 55500000 bc 420000

         conform-action transmit

         exceed-action drop

      conform: 197364 (packets) exceed: 0 (packets)

    Class-map: class-default (match-any)

      0 packets, 0 bytes

      5 minute offered rate 0 bps, drop rate 0 bps

      Match: any

  Service-policy output: 50Mbit-ut-3p

    Class-map: res-voip-out (match-any)

      0 packets

      Match: ip dscp cs5 (40) ef (46)

        Priority      

      police cir 100000 bc 8000

         conform-action transmit

         exceed-action drop

      conform: 0 (packets) exceed: 0 (packets)

      Output Queue:

        Max queue-limit default threshold: 48

        Tail Packets Drop: 0

    Class-map: res-video-out (match-any)

      395086 packets

      Match: ip dscp cs3 (24)

      Match: ip dscp cs3 (24) cs4 (32) af41 (34) af43 (38)

      Traffic Shaping

        Average Rate Traffic Shaping

        CIR 100000 (bps)

      Output Queue:

        Max queue-limit default threshold: 48

        Tail Packets Drop: 0

    Class-map: res-internet-out (match-any)

      188427 packets

      Match: ip dscp default (0)

      Traffic Shaping

        Average Rate Traffic Shaping

        CIR 50000000 (bps)

      Queue Limit

        queue-limit 544 (packets)

      Output Queue:

        Max queue-limit default threshold: 544

        Tail Packets Drop: 0

    Class-map: class-default (match-any)

      2 packets

      Match: any

        Output Queue:

          Max queue-limit default threshold: 48

          Tail Packets Drop: 0

      Traffic Shaping

        Average Rate Traffic Shaping

        CIR 100000 (bps)

      Output Queue:

        Max queue-limit default threshold: 48

        Tail Packets Drop: 0

switch#

Does this make sense to any of you? We can't seem to find the reason for this, and it is quite annoying.

Thanks in advance!

-Thomas

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1 REPLY
New Member

ME-3400 port in errdisable

I think I have found the solution to this problem. Certain kinds of network equipment will, however briefly, first connect at 10Mbps when negotiating speed on an interface set to auto/auto. If your service policy is set to 10Mbps or higher, the port will errdisable. This happens because the speed of the interface must be higher than the limits set by the policy.

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