[c-nsp] packet loss

[Xavier Beaudouin]

Hello,
Le 27 oct. 08 à 04:35, a. rahman isnaini r.sutan a écrit :

>
>
> ro#sh int g1/0
>     1090542525 packets input, 87373962 bytes, 39 no buffer
>     Received 176544249 broadcasts, 0 runts, 0 giants, 2079 throttles
>     0 input errors, 542 CRC, (Check this) 0 frame, 134 overrun, 0  
> ignored
>
> clearing interface : CRC should be 0.
>
> ro#clear counters
> ro#sh int g1/0
>     15240 packets input, 9343716 bytes, 0 no buffer
>     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>
> ro#sh int g1/0
>     25278 packets input, 14733654 bytes, 0 no buffer
>     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>
>
> a. rahman isnaini rangkayo sutan


Seems you have (had?) some trouble either :

- with a faulty cable
- with a faulty nic

If you have setup flow control, try to switch it off for a couple of  
time...

If you still have counter on "no buffer" then you have a problem...  
(switch problem ?), but if you have no error at all but still packet  
loss on the specified machine, then you should check the machine  
itself :

- enougth cpu power ?
- raise tcp / udp buffer ?
- add ram
- stop some application...
- change the nic (use intel one, instead of realtek, broadcom, ....)
- change OS... (this only if you handle looooooots of small packets...)

Sincerly,
/Xavier