Furuno Felcom 82, Operator'S Manual

Page: 171 / 230

7. HSD COMMUNICATIONS
7-11
TCP/IP protocol
•
When throughput is slow due to propagation delay, enlarge the size of the TCP
window to compensate for the delay. TCP size setting depends on protocol
stack and OS. Consult respective operator’s manual for advice.
•
When using a remote router, raising the communications cue (buffer) setting
can speed up throughput time. However, in some cases it may be necessary
for the ship and land terminals to have the same router. Some routers cannot
be used for Inmarsat HSD communications, especially those which cannot
accommodate circuits which have large propagation delay. Consult with router
maker and dealer to determine suitable router.
•
For further details consult the network manager.
Router setting for network connection example
Name Maker
Router CISCO 1601 CISCO SYSTEMS (USA)
IOS Software SFC-1601C-11.33 CISCO SYSTEMS (USA)
Cable CAB-449MT CISCO SYSTEMS (USA)
HSD
Router
CISCO 1601
Communication Unit
10BASE-T
To LAN
FELCOM 82
IB-282
Router connection
Router setting for network connection
Setting for CISCO1601 (DTR dial-up)
Set subscriber number as *51* …#