HTTP web compression

Hi,

 

 

We have two F5 boxes and last week one of the unit is replaced due to hardware issue.The replacement unit came with the free 500M of compression license. But the peer F5 unit is having 5M compression license only.

 

 

Now can you please let me know what does the 500MBs give us vs the 5MBs.

 

 

I’ve put some scenarios together to help you explain to me where compression fits in and how the licence limits apply.

 

Senario A:-

 

Web Server (1 web page 1Mb of data) -- 100 Mbps Connection -- F5 ---100 Mbps -- Router (Internet) -- 5000 Users with 1Mbps connection

 

 

If users all connect to the web server and download page, they connect in total at 5000Mbps but the link is only 100Mbps. So the time to download 5000 x 1Mb data due to the 100Mps link limit is 50 seconds.

 

 

Senario B - compression

 

Web Server (1 web page 1Mb of data) -- 100 Mbps Connection -- F5 (compressing) ---100 Mbps -- Router (Internet) -- 5000 Users with 1Mbps connection

 

 

If users all connect to the web server and download page, they connect in total at 1000Mbps but the link is only 100Mbps. However if we assume the compression is 100% i.e. half the bandwidth. The time to download 5000 x 0.5 Mb (1Mb compressed) data due to the 100Mps link limit is 25 seconds. However the download between Webserver and F5 for 5000Mb of data would still be 50 seconds. So this is assuming infinite compression, please can you show me how this would change for both a limit of 5Mbps and 500Mbps.

 

 

 

Thx./som