Runts and Giants on 3750

Unanswered Question
Feb 22nd, 2009
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Hi,


My 3750 is showing the following errors (runts,giants,input errors):


FastEthernet 1/0/13


VPN Concentrator


0 runts, 5 giants, 0 throttles

22 input errors, 17 CRC, 0 frame, 0 overrun, 0 ignored



FastEthernet 1/0/2


Trunk to ASA Firewall


561 runts, 0 giants, 0 throttles

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


Should I clear the stats down first and check later? If so how?


Also in basic terms are these errors?

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JamesLuther Sun, 02/22/2009 - 12:41
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Hi,


To clear the statistics then type


clear interface fa1/0/13

clear interface fa1/0/2


runts are packets that are too small to be classed as a normal packet. Giants are packets larger than the MTU size of the port. CRC is checksum faiulure ie packet corrupted


The input errors are a total count of all errors.


Detailed explanation can be found


http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1904.html



Regards

whiteford Sun, 02/22/2009 - 12:44
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Thanks,


Should the stats clear straight away? I ran those commands and the same stats remain.


[update]


Looks like clear counter interface fa1/0/13 etc did it.

adamclarkuk_2 Sun, 02/22/2009 - 12:49
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Try the clear counters command


clear counters [interface-id]


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