WAN testing tools

[prafuljaded]

I would like to know any freeware tools to check the reliability (errors) of a new WAN link(Fract DS3,9 Mbps) wherein I can run overnight. I guess ping is the only type I can check as there is no application(like FTP,http) running on either side of the link

Thanx,

Praful

[folderman]

hi Praful,

you may try to use ttcp in linux, it would flood your link.

rgds,

kennethl

[peterledwidge]

Hi,

you could open multiple telnet sessions (up to 5)to a router under your administrative control.

Clear counters Serial x

Ensure you can ping the remote end of the WAN link

Run an extended ping sweep to the link address at the other side of the connection. Use large packet sizes to generate load on the connection and leave for a few hours so you can gather MRTG graphs.

Router# ping

Protocol [ip]:

Target IP address: x.x.x.x

Repeat count [5]: 2147483647

Datagram size [100]: 18024

Datagram size [100]:

Timeout in seconds [2]:

Extended commands [n]:

Sweep range of sizes [n]:

Type escape sequence to abort.

Sending 2147483647, 100-byte ICMP Echos to x.x.x.x , timeout is 2 seconds:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

let it run

Note you might also want to increase the timeout setting on your router

line vty 0 4

exec-timeout 59 0

HTH

[alextapia]

If you have a host and server setup you can use this between your link:

IPERF

http://dast.nlanr.net/Projects/Iperf/

[dgahm]

Some versions of 12.2 IOS have TTCP built in. It is a hidden command so you need to try it. Just enter ttcp from the enable prompt. If available you will see transmit or receive [receive]:

The routers on both ends need to have ttcp. One side is set for receive, and the other side transmit. You will fill the pipe with this, so don't do it on a production link.