12. BANDWIDTH ON DEMAND .................................................................................................................... 80
13. TRAFFIC INITIATED LOGON ................................................................................................................ 82
14. HEADER COMPRESSION ........................................................................................................................ 83
14.1 ENABLING HEADER COMPRESSION............................................................................................................. 83
14.2 DISABLE HEADER COMPRESSION ............................................................................................................... 84
15. ROUTING OF MULTICAST TRAFFIC .................................................................................................. 85
16. UPDATING THE VSAT SW ...................................................................................................................... 86
16.1 AUTOMATIC SOFTWARE UPDATE ............................................................................................................... 87
16.2 MANUAL SOFTWARE UPDATE .................................................................................................................... 88
16.3 RESTORING THE BACKUP SOFTWARE ......................................................................................................... 89
17. SATLINK AND DVB-S2 ............................................................................................................................. 90
17.1 DVB-S2 MODULATION .............................................................................................................................. 90
17.2 DVB-S2 CODING ....................................................................................................................................... 90
17.3 DVB-S2 CODING AND MODULATION CONTROL MODES ............................................................................ 92
17.4 DVB-S2 CONFIGURATION FOR 1910 IDUS WITH THE SATLINK 100 PLUG-IN CARD .................................. 93
18. SOFTWARE OPTIONS .............................................................................................................................. 95
18.1 GENERIC ROUTING ENCAPSULATION (GRE) AND IP TUNNELING ............................................................... 96
18.2 TCP PERFORMANCE ENHANCING PROXY (PEP) ......................................................................................... 97
18.3 HTTP ACCELERATION (HTTPA) ............................................................................................................... 99
18.4 RETURN LINK ACCESS CONTROL (RAC) .................................................................................................. 102
18.5 VLAN EXTENSION (802.1Q) .................................................................................................................... 104
18.6 ETHERNET USER PRIORITY (802.1P/D) ..................................................................................................... 105
18.7 DVB-S2 16-APSK ................................................................................................................................... 106
19. EXTENSIONS FOR MOBILE VSATS ................................................................................................... 108
19.1 TRANSMIT INHIBIT FUNCTION .................................................................................................................. 108
19.2 GPS INTERFACE ....................................................................................................................................... 110
19.3 RX LOCK SIGNAL ..................................................................................................................................... 111
19.4 OPTIMIZING THE MOBILE VSAT FOR RECOVERING CONTACT WITH THE NETWORK AFTER BLOCKINGS . 111
19.5 MOBILE VSAT LAN INTERFACE TO MOBILE ANTENNA CONTROLLER .................................................... 112
20. MESH VSATS ............................................................................................................................................ 118
21. DEFINITIONS, ACRONYMS AND ABBREVIATIONS ...................................................................... 123
22. REFERENCES ........................................................................................................................................... 125
APPENDIX A. ACCESSING THE COMMAND LINE INTERFACE VIA SERIAL CONSOLE PORT 126
APPENDIX B. TFTP SERVER ......................................................................................................................... 129
APPENDIX C. TELNET CLIENT .................................................................................................................... 130
APPENDIX D. TESTING THE CONNECTION TO THE VSAT ................................................................. 131
APPENDIX E. MANAGEMENT VIA SNMP ................................................................................................. 140
APPENDIX F. ODU INSTALLATION ............................................................................................................ 148
APPENDIX G. SATLINK 403X: INTERFACING VSAT RX/TX ANTENNAS .......................................... 154
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