Document Organization

This manual is divided into several parts. Each part describes a major functional area of the JUNOS software, and the individual chapters within a part describe the software commands of that functional area.

This manual contains the following parts and chapters:

• Preface, About This Manual (this chapter), provides a brief description of the contents and organization of this manual and describes how to contact customer support.
• Part 1, "Overview" provides an overview of this manual.

• Chapter 1, "Interfaces Overview," provides a general overview of this manual.

• Part 2, "Static Router Interface Monitoring and Troubleshooting," describes the commands used to manage the static router interfaces:

• Chapter 2, "Static Router Interfaces Monitoring and Troubleshooting," describes the commands for monitoring static interfaces and troubleshooting static interface problems.
• Chapter 3, "ATM Interfaces Monitoring and Troubleshooting," describes the commands for monitoring ATM interfaces and troubleshooting ATM interface problems.
• Chapter 4, "Channelized DS-3 to DS-0 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Channelized DS-3 to DS-0 router interfaces and troubleshooting Channelized DS-3 to DS-0 router interface problems.
• Chapter 5, "Channelized DS-3 to DS-1 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Channelized DS-3 to DS-1 router interfaces and troubleshooting Channelized DS-3 to DS-1 router interface problems.
• Chapter 6, "Channelized E1 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Channelized E-1 router interfaces and troubleshooting Channelized E-1 router interface problems.
• Chapter 7, "Channelized OC-12 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Channelized OC-12 router interfaces and troubleshooting Channelized OC-12 router interface problems.
• Chapter 8, "Channelized STM-1 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Channelized STM-1 router interfaces and troubleshooting Channelized STM-1 router interface problems.
• Chapter 9, "DSC Interface Monitoring," describes the commands for monitoring DSC router interfaces.
• Chapter 10, "E1 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring E-1 router interfaces and troubleshooting E-1 router interface problems.
• Chapter 11, "E3 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring E-3 router interfaces and troubleshooting E-3 router interface problems.
• Chapter 12, "EIA-530 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring ES router interfaces and troubleshooting ES router interface problems.
• Chapter 13, "ES Interfaces Monitoring and Troubleshooting," describes the commands for monitoring ES router interfaces and troubleshooting ES router interface problems.
• Chapter 14, "Fast Ethernet Interfaces Monitoring and Troubleshooting," describes the commands for monitoring ES router interfaces and troubleshooting ES router interface problems.
• Chapter 15, "Gigabit Ethernet Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Gigabit Ethernet router interfaces and troubleshooting Gigabit Ethernet router interface problems.
• Chapter 16, "GRE Interfaces Monitoring and Troubleshooting," describes the commands for monitoring GRE router interfaces and troubleshooting GRE router interface problems.
• Chapter 17, "IP-IP Interfaces Monitoring and Troubleshooting," describes the commands for monitoring IP-IP router interfaces and troubleshooting IP-IP router interface problems.
• Chapter 18, "Link Services Interfaces Monitoring and Troubleshooting," describes the commands for monitoring IP-IP router interfaces and troubleshooting IP-IP router interface problems.
• Chapter 19, "Multilink Services Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Multilink Services router interfaces and troubleshooting Multilink Services router interface problems.
• Chapter 20, "Q Performance Processor (QPP) Channelized Interfaces Monitoring and Troubleshooting," describes the commands for monitoring QPP Channelized router interfaces and troubleshooting QPP Channelized router interface problems.
• Chapter 21, "SONET/SDH Interfaces Monitoring and Troubleshooting," describes the commands for monitoring SONET/SDH router interfaces and troubleshooting SONET/SDH router interface problems.
• Chapter 22, "T1 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring T1 router interfaces and troubleshooting T1router interface problems.
• Chapter 23, "T3 Interfaces Monitoring and Troubleshooting," describes the commands for monitoring T3 router interfaces and troubleshooting T3 router interface problems.
• Chapter 24, "Virtual Loopback Tunnel Interfaces Monitoring and Troubleshooting," describes the commands for monitoring Virtual Tunnel router interfaces and troubleshooting Virtual Tunnel router interface problems.

• Part 3, "Real-Time Router Interface Monitoring and Troubleshooting," describes the CLI commands used to manage the real-time router interfaces:

• Chapter 25, "Real-Time Router Interface Monitoring and Troubleshooting," describes the commands for monitoring real-time router interfaces and troubleshooting real-time router interface problems.

• Part 4, "Interface Monitoring and Troubleshooting with BERT Tests," describes the CLI commands used to manage the router interfaces:

• Chapter 26, "Monitoring and Troubleshooting Using BERT Tests," describes the commands for monitoring BERT tests and troubleshooting problems.

• Part 5, "Monitoring and Troubleshooting ILMI Interfaces," describes the CLI commands used to manageILMI interfaces:

• Chapter 27, "Monitoring and Troubleshooting ILMI Interfaces," describes the commands for monitoring ILMI interfaces and troubleshooting problems.

• Part 6, "VRRP Monitoring and Troubleshooting," describes the CLI commands used to manage the router interfaces:

• Chapter 28, "VRRP Router Interfaces Monitoring and Troubleshooting," describes the commands for monitoring VRRP router interfaces and troubleshooting VRRP router interface problems.

This manual also contains a glossary, a complete index, and an index of statements and commands.