Cisco DNCS System Release 2.7 3.7 4.2 Guia Do Desenho
Contents
4000358 Rev B
iii
Disclaimer ........................................................................................................................ xi
About This Guide
Introduction ............................................................................................................... xiii
Purpose ....................................................................................................................... xiii
Audience .................................................................................................................... xiii
Scope ........................................................................................................................... xiv
System Requirements ............................................................................................... xiv
Related Publications ................................................................................................. xiv
Document Version ..................................................................................................... xv
Chapter 1
Introducing DOCSIS
Overview ........................................................................................................................ 1-1
Introduction ............................................................................................................... 1-1
Required Hardware and Software .......................................................................... 1-1
In This Chapter .......................................................................................................... 1-2
Terminology .................................................................................................................. 1-3
List of Terms .............................................................................................................. 1-3
System Description ..................................................................................................... 1-11
Introduction ............................................................................................................. 1-11
Deploying DOCSIS-Capable DHCTs into the DBDS ......................................... 1-11
DHCT Communication Modes ............................................................................. 1-12
DOCSIS Settop Gateway (DSG) ............................................................................ 1-13
A Simplified Network View of the DHCT Communication Modes ................ 1-14
System Requirements ................................................................................................. 1-15
Introduction ............................................................................................................. 1-15
Network Element Requirements .......................................................................... 1-15
System Elements and Interfaces................................................................................ 1-16
Introduction ............................................................................................................. 1-16
A Simplified View of the System Architecture ................................................... 1-16
Network Elements .................................................................................................. 1-17
DHCT Interfaces ...................................................................................................... 1-18
Communication Paths in the DOCSIS-Capable Explorer DHCT ................. 1-18