with the same link, PC is fine, but C851 has regular packet loss

Unanswered Question
Dec 16th, 2008

Dear all,

RT, it's very strange. Did any one meet that situation please?

Internet----Gateway(Cisco router)----CiscoSwitch----My end point

When my end point is a PC connected, and ping to the gateway, it's fine. But when it switched back to the C851, after ping the gateway, the return of !!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!., with 25% loss happened.

and I really don't know how could that happened.

Thanks for your kind Tips in advance.

:-)

I have this problem too.
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Giuseppe Larosa Tue, 12/16/2008 - 10:12

hello Hai,

if I understood correctly if the PC is directly connected to the C851 you get 100% success if there is the switch in the middle you get 75%.

What is the Cisco switch ?

verify the statistics of involved switch ports (the one to the PC and the one to the router)

or are you using a C851 like a switch ?

use

show int fas0/x

check if there are errors.

and if they increment accordingly to your losses.

verify the duplex and speed settings on all devices : PC NIC, Router Lan port, the two switch ports

Hope to help

Giuseppe

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