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Load Balance ?

Unanswered Question
May 28th, 2002
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Hi guys,


I am have a switch cisco WS-C2924C-XL connected to a switch planet FNSW-1600S via 2 fiber optic, in the Fast Ethernet 0/23 I am having :


FastEthernet0/23 is up, line protocol is up

Hardware is Fast Ethernet, address is 0050.806f.2f99 (bia 0050.806f.2f99)

Description: Fibra 4o. Andar

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 4/255

Encapsulation ARPA, loopback not set, keepalive not set

Full-duplex, 100Mb/s

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

Last input 00:00:54, output 00:00:00, 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 916000 bits/sec, 299 packets/sec

5 minute output rate 1873000 bits/sec, 341 packets/sec

4756463 packets input, 1318032858 bytes, 0 no buffer

Received 17372 broadcasts, 0 runts, 0 giants, 0 throttles

185074 input errors, 25133 CRC, 35781 frame, 0 overrun, 1 ignored, 0 abort

0 watchdog, 520 multicast

0 input packets with dribble condition detected

6408644 packets output, 2024030263 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


In to the Fast ethernet 0/24 I am having :


FastEthernet0/24 is up, line protocol is up

Hardware is Fast Ethernet, address is 0050.806f.2f9a (bia 0050.806f.2f9a)

Description: Fibra 4o. Andar

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255

Encapsulation ARPA, loopback not set, keepalive not set

Full-duplex, 100Mb/s

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

Last input 00:00:00, output 00:00:21, 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 6000 bits/sec, 6 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

60306 packets input, 9181191 bytes, 0 no buffer

Received 59664 broadcasts, 0 runts, 0 giants, 0 throttles

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

0 watchdog, 8557 multicast

0 input packets with dribble condition detected

312 packets output, 50166 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


Like you can see, I am having a lot of traffic into interface Fast Ethernet 0/23 and a lot of CRC and input errors, and into interface Fast Ethernet 0/24 I am having just a little traffic and 0 CRC and 0 input errors, anybody knows like I can solve this problem ?


Thanks,


Alex



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thomas.chen Tue, 06/04/2002 - 13:38
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Check duplex and speed settings on the other side of this connections, ensure they match. Swap out ports, and push something new to this port, clear counters, push some data across the port. Your input level is not above acceptable use, just over .1 megabytes a second. Put the other side of the connection under the microscope.

srittenberg Tue, 06/04/2002 - 14:54
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Your input error on F0/23 is little high over .02%, and CRC is very high (way over one per million). f0/24 is fine. You need to check on the other end that's connected to f0/23. f0/23 is set for 100/full, and I agree that you need to check the speed and duplex port setup that connected to f0/23 at the other end. if the setup correctly, check the cable. The interface counter has never been cleared, so it's hard to tell about the CRC, when the interface frist come up, it may also create CRC too. The traffic on f0/23 may cause by errors.

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