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New Member

port down

Hi,

I have a 2960 switch to which printer is connected

port configuration is -

#show run innt fa0/2

interface fastethernet 0/2

!

switchport access vlan 20

Problem is, after some time, that port goes down and i have to restart the switch.

But, when i connect the printer indirectly to the switch i.e. putting small d-link switch(8 port), it works just like normal

I tried everything hysically. Am i missing anything in switch configuration.

Please help

8 REPLIES

port down

The port shuts down or is it err-disable? How often does it happen? The port looks pretty basic, and for a printer it shouldn't need to be configured special. The next time it happens, can you post:

sh int fa0/2

HTH, John *** Please rate all useful posts ***
Silver

port down

Hi Vishal,

Can you also post:

show port-security interface fa0/2

Thank you.

Best regards,

Jan

New Member

port down

sure....

New Member

Re: port down

hi,

I observed one more thing...

Same printer is attched to the switch to different port. That port is working fine,,,,,

please find attached port config for these two ports

Hall of Fame Super Gold

port down

Same printer is attched to the switch to different port. That port is working fine

You most likely have a cable issue.  The best bet is to run a TDR, which the 2960 "kinda" support.

New Member

Re: port down

hi,

I think I got the problem; the port went to err-disabled mode

sw#sh int fa0/3
FastEthernet0/3 is down, line protocol is down (err-disabled)
  Hardware is Fast Ethernet, address is 0024.f98d.8d83 (bia 0024.f98d.8d83)
  MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed, media type is 10/100BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 20:38:36, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     21132 packets input, 1353478 bytes, 0 no buffer
     Received 303 broadcasts (0 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     675919 packets output, 51816930 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

Now I dont understand that why it is in err disabled mode...

Please suggest..

Cisco Employee

Re: port down

Can you check "show log" for the reason of  port being error-disabled.

Nik

Hall of Fame Super Gold

port down

Now I dont understand that why it is in err disabled mode...

Kindly post the output to the command "sh interface f0/3 status err".

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