Troubleshooting guide

CHAPTER
1-1
Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
1
Solution Overview
The best possible troubleshooting tool is an extensive, in-depth understanding of the solution and all components;
their installation, configuration, provisioning, operation, and maintenance in your environment.
PacketCable™ is a CableLabs® -led initiative aimed at developing interoperable interface specifications
for delivering advanced, real-time multimedia services over two-way cable plant. Built on top of the
industry's highly successful cable modem infrastructure, PacketCable networks use Internet Protocol
(IP) technology to enable a wide range of multimedia services, such as IP telephony, multimedia
conferencing, interactive gaming, and general multimedia applications.
The Cisco Broadband Local Integrated Services Solution (BLISS) for Cable is Cisco’s Voice over IP
(VoIP) based Class 5 local services solution for cable systems. The Cisco BLISS for Cable solution
builds on the earlier BLISS for T1 solution and expands the framework to include new elements, new
features, and cable access technology using packetized data transmission over the cable television
Hybrid Fiber Coaxial (HFC) network.
Cisco’s BLISS for Cable product is based on Cisco’s Open Packet Telephony (OPT), CableLabs
PacketCable specifications, and a centralized call control architecture, using the Cisco BTS 10200
Softswitch for call control, Cisco media gateways to carry bearer traffic, and the associated management
systems. The BLISS for Cable solution uses MGCP 1.0/ NCS 1.0 signaling between the Call Agent and
MTA end points for call control, providing interoperability between compatible media gateways.
The VoIP over Cable access network and the PacketCable specifications allow cable Multiple System
Operators (MSOs) to leverage existing cable plant infrastructure to offer integrated voice and data
services for residential customers. The solution uses the Data Over Cable Service Interface Specification
(DOCSIS) to provide these residential services by utilizing the basic interactive cable infrastructure that
MSOs have installed to deliver High Speed Data (HSD) services, including cable modems, head-end
equipment, and the distribution plant, to deliver high quality local telephone service.
The Cisco BLISS for Cable Release 1.0 solution introduced the following high level capabilities:
• Implementation of CableLabs® PacketCable™ components for telephony service including:
– Support for the DOCSIS 1.1-based HFC cable plant, including PacketCable
compliant MTAs and Cable Modem Termination Systems (CMTS).
– Cable Modem Termination System (CMTS) - Cisco uBR7246VXR and Cisco uBR10012
– High Density Media Gateway (MG) - Cisco MGX8850 Trunking Gateway
– Call Management Server (CMS) - Cisco BTS10200 Softswitch
– Media Gateway Controller (MGC) - Cisco BTS10200 Softswitch
– Signaling Gateway (SG) - Cisco BTS10200 Softswitch