12-01-2010 12:31 AM
Hi,
could someone advise me how to calculate the overheads for IPSEC VPN with AES?
Will using different encryption effect the overhead size?
Thank you
12-01-2010 04:46 PM
Here is an article on how to calculate the overheads that might help:
http://www.networkstuff.eu/index.php/IPsec_Bandwidth_Overhead_Using_AES
Hope that helps.
04-07-2011 07:16 AM
Based on the exhibit above,
A single call using G729 codec packet = 120Bytes (VPN overhead included)
L3 Data transmission rate for G729 call = 50pps (Packets Per second)
Bit Rate = 8
This should work out as;
120bytes x 50pps x 8bits = 48000bits
48000bits x 1024kb = 48kbps
Hope this is informative.
Many thanks,
F Hamid
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