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Error, Packets dropped on LAN interface on Router

ciscoroyzhang
Level 1
Level 1

Hi all

have exprience some network performace issue, on one of router's LAN interface, sh int fa0/0 as following:

FastEthernet0/0 is up, line protocol is up

  Hardware is MV96340 Ethernet, address is 0013.8083.6b38 (bia 0013.8083.6b38)

  Description: CPGRDAC LAN

  Internet address is 10.109.51.25/24

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

     reliability 252/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Half-duplex, 100Mb/s, 100BaseTX/FX

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

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

  Last clearing of "show interface" counters never

  Input queue: 0/800/1/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  30 second input rate 57000 bits/sec, 55 packets/sec

  30 second output rate 564000 bits/sec, 68 packets/sec

     491981360 packets input, 280920410 bytes

     Received 10681245 broadcasts, 219931135 runts, 0 giants, 1 throttles

     232252247 input errors, 12269198 CRC, 51914 frame, 0 overrun, 0 ignored

     0 watchdog

     0 input packets with dribble condition detected

     470638181 packets output, 2577702497 bytes, 0 underruns

     280773 output errors, 16724512 collisions, 0 interface resets

     2203107 unknown protocol drops

     0 babbles, 280679 late collision, 0 deferred

     0 lost carrier, 0 no carrier

     0 output buffer failures, 0 output buffers swapped out

thnaks in advance,   Roy

1 Accepted Solution

Accepted Solutions

ebarticel
Level 4
Level 4

Your Fast Ethernet is configured on half-duplex looking at the output

    "Half-duplex, 100Mb/s, 100BaseTX/FX"

to fix

interface fastethernet0/0

duplex full

speed 100

Hope this helps

Eugen

View solution in original post

3 Replies 3

Krishnendu AR
Level 1
Level 1

Hi Roy,

Did you check the speed and duplex at the other end ? It should be matching to this side.

Krishna

viswamin
Cisco Employee
Cisco Employee

since the collusion is high, looks like there is a duplex mismatch. can you pls check that

-Vijay

ebarticel
Level 4
Level 4

Your Fast Ethernet is configured on half-duplex looking at the output

    "Half-duplex, 100Mb/s, 100BaseTX/FX"

to fix

interface fastethernet0/0

duplex full

speed 100

Hope this helps

Eugen

Review Cisco Networking for a $25 gift card