Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

eee
New Member

how can i choose capacity of a link

hello

could you if you please tell me how can i choose capacity of a link based on traffic of this link

and how the price unit per unit capacity can be calculated

thanks

  • Other Network Infrastructure Subjects
1 REPLY
New Member

Re: how can i choose capacity of a link

To calculate any usage, you will need an application that polls the interface counters, stores the results and allows you to access these results later.

Concord's eHealth is probably the best known, but is very expensive.

MRTG can be configured to give bit counts instead of rates (bps), but you have to know what you are doing. MRTG is free.

For choosing the capacity of a link, this is very difficult these days because of p2p.

Back in the "old days" i.e. 2 years ago, we would look at 5 minute average bps scores, and divide the peak observation by 0.75.

However, what you find these days is that you can double the capacity of a link, and it will fill up straight away. All that happens is that someone downloading music will notice their performance has improved.

You may choose to police or traffic shape the interface, and look at how many discards are occurring, and use this as a guide.

Hope this helps.

Regards.

76
Views
0
Helpful
1
Replies
This widget could not be displayed.