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IPSec overhead in a satellite link

sachin_mon
Level 1
Level 1

Hi,

I would like to know what is the overhead of IPSec tunnel over a satellite link. The WAN BW is 10 MBPS at one location & two 5 Mbps at other location.

I have attached the network sizing & network diagram (In the diagram there is a TCP acceleration block diagram which currently does not exist,but its the future plan for TCP acceleration). Kindly let me know what could be the realistic figure considering voice, video & data in place.

Thanks.

Rgds./

Sack.

1 Reply 1

Laurent Aubert
Cisco Employee
Cisco Employee

Hi,

IPSEC overhead is regardless of the physical link so it will not change because it's a satellite link. In tunnel mode with ESP you can expect around 60B of overhead worthcase.

HTH

Laurent.