Troubleshooting guide

1-7
Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 1 Solution Overview
Architectural Overview
Physical Architecture
The BLISS for Cable solution architecture, as illustrated in Figure 1-2, is based on the CableLabs®
PacketCable™ 1.0 architecture. The BLISS for Cable solution utilizes the CableLabs® DOCSIS™ 1.1
HFC access network architecture along with the Multi-Service over Cable (MSOC) [1] backbone
architecture. In the BLISS for cable solution, the Cisco BTS10200 performs the functions of the Call
Management Server (CMS), the Media Gateway Controller (MGC) and the Signaling Gateway (SG) as
defined in the PacketCable™ 1.0 specifications.
The basic physical elements of the BLISS architecture are as shown here.
Figure 1-2 Cisco BLISS for Cable Physical Architecture
Connectivity to the service provider for Internet access can be through a GSR router in the IP core
network, or it can be from the Cisco Catalyst 6509 switch, depending on customer deployment plans.
The call control signaling is NCS 1.0 for the MTA call control and Media Gateway Control Protocol
(MGCP) 1.0 for Trunking Gateway (TGW) interactions. The interface to a 911 Access Tandem, Operator
Positions, and FGD trunks is provided via the MGX 8850/VISM trunking gateway. The IMTs from the
PSTN also terminate on the trunking gateway. SS7 ISUP links terminate on the Cisco BTS 10200
Softswitch, which runs the Call Agent process.
Core IP Network
Cisco MGX 8850
Cisco
Catalyst
6509
PSTN
104555
SS7 link
Cisco BTS 10200
Softswitch
(CMS, MGS, SG)
STP
V
M
SS7
DOCSIS
HFC Plant
MTA
V
MTA
911 Access
Tandem
Record
Keeping
Server
Voice
Mail
Server
Announcement
Server
OPS
Provisioning
Server
CALEA
Server
Provisioning/Billing Media Servers
SS7 link
Cisco uBR10012
Cisco uBR7246VXR
CMTS Router
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