Network usage

[System Dude_1]

Dear friends,

I would like to move 5 servers from server room1 which is my main data center to server room2 which is my remote datacenter. But I could only manage to provide 10mbs links for the five servers. Please guide me on how or the formula to calculate the network usage for individual server for me to accomodate the 10mbs link.

[JACQUET]

According to me, the only command that allows you to see traffic on your lan card is netstat :
netstat -I lan$X $int
where $X=the identifier of your lan
$int = interval for collecting datas in sec.
But it shows you only input/output packets, and if your network is IP, the size of the packet could not be static (in case of ATM, you could calculate it by fixing the size of a packet). So the best way is to use a soft, or have directly a look at the Hub/Switch.

PJA.

[Magdi KAMAL]

Hi Jamaludin,

ViewPoint software ( from Datametrics ) is good tool for monitoring resorces ( amoung it network traffic ) :

Also :
CPU
RAM
Disk
Controller
...

Magdi

[Uffe Gavnholt_1]

MRTG from www.mrtg.org, is also very usefull for collecting, and displaying performance statistics, for many topics.

Uses SNMP - so some SNMP knowledge is required.

[rick jones]

you cna use lanadmin to disaply statistics and look at them over a couple of measured intervals. then do a bit of math to see what your bitrates are over time.

i would suggest both long and short interval measurements.

you can use beforeafter from ftp.cup.hp.com to subtract the output of one lanadmin command from another (when both are saved in files).