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New Member

Switch is calling for help

and I don't know what to do for it!

My 2900 Catalyst XL has three VLANS on different subnets. VLAN1 is on my WAN. Port 1 is connected to the WAN port of my firewall, Port 2 is connected to Ether0/0 on the 2611 router. I haven't been able to telnet to the switch and get it to respond so I consoled in and found it constantly complaining with:

4w5d: %LINK-4-ERROR: FastEthernet0/2 is experienc 156169061 packets output,

4034345596 bytes, 0 underruns

A show interface of the two ports provides this information:

FastEthernet0/1 is up, line protocol is up

Hardware is Fast Ethernet, address is 0002.b921.eb41 (bia 0002.b921.eb41)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive not set

Auto-duplex (Full), Auto Speed (100), 100BaseTX/FX

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, output 00:00:01, output hang never

Last clearing of "show interface" counters never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 296000 bits/sec, 93 packets/sec

5 minute output rate 154000 bits/sec, 88 packets/sec

160873385 packets input, 3764204731 bytes

Received 261694 broadcasts, 0 runts, 0 giants, 0 throttles

3 input errors, 3 CRC, 0 frame, 3 overrun, 31 ignored

0 watchdog, 0 multicast

0 input packets with dribble condition detected

4w5d: %LINK-4-ERROR: FastEthernet0/2 is experienc 156169061 packets output,

4034345596 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 output buffer failures, 0 output buffers swapped out

FastEthernet0/2 is up, line protocol is up

Hardware is Fast Ethernet, address is 0002.b921.eb42 (bia 0002.b921.eb42)

MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,

reliability 254/255, txload 14/255, rxload 20/255

Encapsulation ARPA, loopback not set

Keepalive not set

Auto-duplex (Half), Auto Speed (10), 100BaseTX/FX

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:01, output 00:00:01, output hang never

Last clearing of "show interface" counters never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 820000 bits/sec, 277 packets/sec

5 minute output rate 576000 bits/sec, 266 packets/sec

655397189 packets input, 2921246542 bytes

Received 269594 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 2243 ignored

0 watchdog, 47931 multicast

0 input packets with dribble condition detected

595696938 packets output, 3180169608 bytes, 0 underruns

8425916 output errors, 19576897 collisions, 1 interface resets

0 babbles, 8425916 late collision, 25530974 deferred

0 lost carrier, 0 no carrier

0 output buffer failures,

0 output buffers swapped out

ip nat inside source list 199 interface VLAN1 overload

access-list 199 dynamic Cluster-NAT permit ip any any

snmp-server engineID local 0000000902000002B921EB40

--More--

4w5d: %LINK-4-ERROR: FastEthernet0/2 is experiencsnmp-server community private R

Any ideas what I need to do to alleviate its problem? It appears to be working but is clearly not happy!

Thanks for any input!

Pat

2 REPLIES
New Member

Re: Switch is calling for help

Pat,

I did notice in your output that e0/2 autoset itself for half dulplex. You have a very high number of late collisions. This indicates something full duplex is stepping on the port. You should manually configure your duplex and speed settings and see what happens.

Scott

New Member

Re: Switch is calling for help

That fixed it! Many thanks and Merry Christmas!!

Pat

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