Cisco DNCS System Release 2.7 3.7 4.2 Designanleitung
Contents
, Continued
iv
4000358 Rev B
DHCT Initialization .................................................................................................... 1-20
Introduction ............................................................................................................. 1-20
Obtain and Communicate IP Addresses.............................................................. 1-20
Communication Exchange ..................................................................................... 1-21
Communication Exchange for DAVIC Mode ................................................. 1-22
Communication Exchange for Mixed DOCSIS/DAVIC Mode .................... 1-23
Communication Exchange for DOCSIS Mode ................................................ 1-24
DHCT Communication Modes ................................................................................. 1-25
Introduction ............................................................................................................. 1-25
Receiving Communication Mode Upon Initialization ....................................... 1-26
DAVIC Mode Operation ........................................................................................ 1-26
Mixed DOCSIS/DAVIC Mode Operation ........................................................... 1-26
DOCSIS Mode Operation ....................................................................................... 1-26
DHCT Response to System Interruptions ............................................................... 1-27
Introduction ............................................................................................................. 1-27
How a DHCT Operating in DAVIC Mode Responds to the
Loss of the DAVIC Channel .............................................................................. 1-27
Loss of the DAVIC Channel .............................................................................. 1-27
How a DHCT Operating in Mixed DOCSIS/DAVIC Mode
Responds to the Loss of the DOCSIS or DAVIC Channel ............................... 1-28
Loss of the DOCSIS Channel ............................................................................. 1-28
Loss of the DAVIC Channel .............................................................................. 1-28
How a DHCT Operating in DOCSIS Mode Responds to the Loss of the
DOCSIS Channel ................................................................................................. 1-29
Loss of the DOCSIS Channel ............................................................................. 1-29
Loss of DBDS Broadcast Data On a DOCSIS Channel ................................... 1-30
Loss of DBDS Broadcast Data While the DHCT Boots .................................. 1-30