From: Rob Clav (robclav@gmail.com)
Date: Sat Nov 01 2008 - 17:48:10 ARST
Hi Charles,
last input never, no packet incoming to your SW using this interface.
Probably there's no traffic incoming to this interface because
err-disable is matched before.
So when you fix the problem why err-disable is enabled, then you will
see packets incoming.
Can you paste your sw' config here? Something wrong with spanning-tree
is the most probable cause. Is the unix server dual-homed?
Br,
Roberto Clavero
2008/10/31 Charles Henson <chenson@gmail.com>:
> OK,
> I try to dig thru CCO (like wandering thru an endless forest sometimes)
> and google questions before putting them on this thread but this question is
> either too simple or just not clear. In troubleshooting an interface
> recently that went into err-disable state, I was asked what "last input
> never" meant and I honestly wasn't sure. I don't believe based on the other
> interfaces that it's related to the issue but it's just something I've
> overlooked over the years. Can anyone provide guidance on what "input" is
> actually being referenced? Is it referencing the ARPs? No, I don't think
> it's associated with the problem but I'm providing the full info anyway. Any
> help would be appreciated. Thanks.
>
> ---------------------------------------------------
>
> SWITCH#sh int status
>
> Port Name Status Vlan Duplex Speed Type
> Fa0/2 Server : SERVER err-disabled 1 full 100
> 10/100BaseTX
>
> SWITCH# sh log
> *CLOCK UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2,
> changed state to down
> *CLOCK UTC: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down
>
>
> SWITCH#sh int fa0/2
> FastEthernet0/2 is down, line protocol is down (err-disabled)
> Hardware is Fast Ethernet, address is 0012.7ffc.b802 (bia 0012.7ffc.b802)
> Description: Server : SERVER (Unix)
> MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation ARPA, loopback not set
> Keepalive set (10 sec)
> Full-duplex, 100Mb/s, media type is 100BaseTX
> input flow-control is off, output flow-control is unsupported
> ARP type: ARPA, ARP Timeout 04:00:00
> *Last input never*, output 16:24:49, 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
> 16439805 packets input, 1445291025 bytes, 0 no buffer
> Received 2651 broadcasts (0 multicast)
> 0 runts, 0 giants, 0 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
> 0 watchdog, 18 multicast, 0 pause input
> 0 input packets with dribble condition detected
> 101873765 packets output, 731143039 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
>
>
> After a SHUT/NO SHUT:
>
> Fa0/2 Server : SERVER connected 1 full 100
> 10/100BaseTX
>
> ----------------------------------------------------------------------------
>
> --
> Charles
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Mon Dec 01 2008 - 08:18:28 ARST