Troubleshooting guide

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Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
About this Guide
Document Organization
• DOCSIS Baseline Privacy Plus Interface Specification, SP-BPI+-I08-020301
• PacketCable™ MTA Device Provisioning Specification, PKT-SP-PROV-I03-011221
• PacketCable™ Network-Based Call Signaling Protocol Specification,
PKT-SP-EC-MGCP-I04-011221
• PacketCable™ PSTN Gateway Call Signaling Protocol Specification, PKT-SP-TGCP-I02-011221
• PacketCable™ Electronic Surveillance Specification, PKT-SP-ESP-I01-991229.
• PacketCable™ Event Messages Specification, PKT-EM-I03-011221.
• PacketCable™ CMS to CMS Signaling Specification, PKT-SP-CMSS-I01-001128.
• PacketCable™ Audio/Video Codecs Specification, PKT-SP-CODEC-I03-011221
Document Organization
The BLISS for Cable Release 1.5 architecture is based on Open Packet Telephony and consists of
multiple functional planes:
• Customer Premise Equipment Layer–Includes the CPE equipment
• Access Gateway Layer–Includes the uplink technology
• Aggregation Layer–Aggregates traffic from the CPE uplinks
• Core Switching Layer–Provides the packet network backbone
• Trunking Layer–Provides the PSTN and SP interfaces
• Call Control and Management Layer–Provides call control/signaling support, Feature Server
interfaces, and support for network resource interfaces such as Announcement Servers, CALEA
servers, Record Keeping Servers, and so on.
• Network Management Layer–Provides the EMS and network management components
• Operational Support System–Provides the operational interfaces and applications required to
manage the network and the solution.
This Guide is organized to correspond with the architectural layers described above as follows:
Chapter 1 Solution Overview Provides an overview of the solution architectures,
hardware devices, protocols, network operations
and the information needed to operate, maintain,
and troubleshoot the BLISS for Cable solution.
Chapter 2 Troubleshooting Overview Provides basic troubleshooting methodology for
packet cable networks, IP networks, and signaling
networks. Guidelines for preventing problems
before they occur are presented, as well as brief
descriptions of the troubleshooting tools available
and guidelines for their use.
Chapter 3 Trouble Isolation Procedures This chapter presents a comprehensive set of
trouble isolation procedures.
Chapter 4 Troubleshooting with Call Flows Provides information on how to use call flows to
help diagnose network and signaling problems and
pinpoint causes.