Cisco slow serial communication

[waynedinh]

I am currently studying for the CCNA exam and ran into this slow file transfer between the Router 1 and Router2.

I tested the 8 MB file transfer from PC#1 to PC#2 which goes across R1 and R2.  The transfer rate is at 7.5KB per second.

I attached a diagram of the network.

Can someone give me some guideline where to troubleshoot?

[mvsheik123]

Hi Wayne,

Did you check if if there are any errors on the router interfaces and PC NICs are with corect setting?

Thx

MS

[waynedinh]

Hello Paolo,

The R2 is the DCE and set the clock rate of 64000.

I just set the clock rate R2 (DCE) to the maximum of 8000000.

I tested an 8 MByte file transfer over the serial link of R1 and R2.

It transfers average about 800KB - 1MB per second which the way it should be.

An 8MB file transfer between PC #1 and PC#2 is less than 5 seconds.

It did not realize the clock rate determine the speed...

In the class room, we also set the serial to 56000.

Thanks for the tip to resolve the issue I encounter...

[paolo bevilacqua]

Very good. Thanks for the nice rating and good luck!

[paolo bevilacqua · Accepted solution]

You want to become a network engineer and don't think to mention the circuit speed?