FTP push and get speed difference at different time of day

[gktang]

We're using ftp to check the bandwidth of a 512K WAN link at different times of the day. We do a put and get of the same file. We have noticed that sometimes during the day, the speed of putting a file varies but getting is always very consistent. Anyone have any ideas as to what could be happening and what to monitor? Thx.

[paddyxdoyle]

Are you pushing and pulling to the same host each time.

Its more than likely your FTP server having to do more processing when you are putting a file as it has to write it to disk, perhaps check the IO utilisation of the server at the same time.

You could also use MRTG stats which is a freeware program that monitors the number of octets in and octets out on your router using SNMP. It then plots these values to a graph so you can get an idea of how much utilisation your have on your link over a period of your choice. The default is 5 mins.

HTH

Paddy

[gktang]

Yes, it is the same set of servers. Basically using a cron job to do the ftp. Will do a check on the server utilisation.

Thx!