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These are general guidelines for network bandwidth required for IPSec VPN connections. 

Number of Concurrent SessionsRecommended number of IPSec VPN TunnelsRecommended Total Bandwidth
20150Mbps
1001250Mbps
5002750Mbps
100021.5Gbps
200023Gbps

There is no "one size fits all" network profile for all tests, the bandwidth required for a test depends on the number of pages downloaded and the approximate size of each page. To get a more accurate measure, run a handful of concurrent sessions (25 to 40) through a proxy and observe the network usage pattern. In general you should have enough bandwidth to download a page in 3 to 5 seconds. For example, if you run 25 concurrent sessions and observe the following:

  • Average page size is 5MB
  • On average two pages are loaded concurrently

Then you need enough bandwidth to download 2x5MB in 3 to 5 seconds, or you need between 16 to 25Mbps bandwidth.


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