BGAN 9201 User Manual
97
TCP
PEP
SOFTWARE
Transmission Control Protocol (TCP) enables two hosts, usually computers to establish a
connection and exchange data. It improves the efficiency of data transfer by dividing the data
into packets, then delivering the packets in the same order that they were sent.
TCP with Performance Enhancing Proxies (TCP PEP) enhances the performance of TCP over a
satellite network such as the BGAN network by providing:
Fast start
useful for transferring small amounts of data, since traditional TCP is often slow with
smaller data transfers.
Increased window size
improves TCP performance in larger bandwidth applications.
Delay based congestion control
ensures high transfer rates and less delay.
TCP PEP software can be downloaded from the Inmarsat web page.
You can enable or disable TCP PEP, and monitor any errors, using the TCP Accelerator screen.
From BGAN Launch Pad main menu, select
BGAN Services > TCP Accelerator
. The TCP
Accelerator screen is then displayed. To turn on TCP PEP select “ON” from the drop down in
the TCP PEP State and then hit “Apply”.
