downloading speed

Fri Apr 17 23:59:34 UTC 2009

chandrashakher pawar wrote:

> No errors on the interface.
> none of our customer on this router has complait us this issue
> i have changed this to "negotiation auto" as suggested by one of our member.
> tommorow customer will test again and reply.
> round-trip-time is good, no bacbone chocked.
> Unit will not make bit differnce as: The customer tried troubleshooting the
> issue after connecting laptop directily to the 100 mbps link.
> In that case also the result was same.

Note that your screenshot displays bytes, not bits.  So it will display 
one-eighth the download speed measured in bits.

Check the TCP tuning on the downloading PC.  The fact that multiple 
windows achieve a higher aggregate speed points to this.  Use the Google 
link I supplied earlier, also search "Bandwidth-delay product".  Are 
both ends of the link a substantial geographic distance (several miles) 
apart?

Note that the adjustments for TCP tuning are to the TCP stack on the 
machine doing the download, not the network gear.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV