Advanced Services' Deploy, Maintain, and Troubleshhot Cisco IOS XR (DMTXR) Software Version 3.6.3:
This course provides you with the knowledge and skill sets required to deploy, maintain,
and troubleshoot Cisco IOS® XR Software in a typical network environment. You will
learn the fundamental concepts on which the operating system is based in order to
understand how to troubleshoot problems relating to process crashes, stuck processes,
high CPU consumption processes, and interprocess communication (IPC) functions. You
will learn to interpret log messages and configure exception reporting and logging as well
as emergency recovery procedures for operating system recovery, Cisco CRS-1
system recovery, Cisco XR 12000 Series system recovery, and Cisco IOS XR Software
configuration and password recovery. In addition, you will use system commands to
monitor interfaces and controllers. You will learn to troubleshoot traffic flow issues
through both Cisco CRS-1 and XR 12000 series routers. This course explains the
components and mechanisms involved in quality-of-service (QoS) processing of transit
traffic as well as control and local traffic.
This course combines lecture materials and hands-on labs throughout to make sure that
you are able to successfully deploy, maintain, and troubleshoot the Cisco IOS XR
Software on Cisco CRS-1 and XR 12000 series routers in your network.
Following are the prerequisites for this course.
- Completion of the Cisco CRS-1 Essentials course, or Cisco XR 12000 Series Essentials,
Cisco ASR 9000 Essentials, or Cisco IOS XR Software Fundamentals
- Fundamental knowledge of Cisco IOS XR Software configuration and operation
- Experience maintaining and troubleshooting the Cisco IOS XR Software routers in a service
provider or enterprise production environment
This course is intended for network professionals (including designers, implementers), network
operations center (NOC) personnel, and support staff, who are involved with the deployment,
operations, maintenance, and troubleshooting of Cisco routers that run the Cisco IOS XR Software
Upon completion of this course, you should be able to:
- Describe the function of the system database (Sysdb) and Configuration Manager
- Configure and monitor a TACACS+ AAA configuration on Cisco IOS XR Software
- Explain the architecture of the Cisco IOS XR Software operating system and the commands
to monitor its operation
- Describe processes in Cisco IOS XR Software and the commands used to monitor process
- Identify and explain the methods and mechanics of IPC
- Implement Network Time Protocol (NTP) in a Cisco IOS XR Software routed network
- Explain how to interpret logging messages and configure exception reporting and logging
- Use show commands to troubleshoot traffic flow issues in a Cisco IOS XR Software router
- Use show commands to trace packet flow through the Cisco CRS-1 line card and switching
fabric to isolate and resolve fault conditions
- Describe emergency recovery procedures to perform operating system, system
configuration, and password recovery on Cisco IOS XR Software routers
- Use show commands to trace packet flow through the Cisco XR 12000 line card and
switching fabric to isolate and resolve fault conditions
- Configure and verify QoS policies on the Cisco CRS-1 router
The course outline is as follows:
- Module 1: Configuration Management
Provides an overview of configuration management
in Cisco IOS XR Software and the function of the Sysdb service. It explains how data moves
between the Sysdb and line cards. The module explains the use of the binary configuration
and examines the binary files in the commitdb directories.
- Module 2: AAA Security
Explains AAA security and the AAA security functions. It defines
task-based authorization using task groups and user groups and explains how to configure
task-based security and user security policies in Cisco IOS XR Software. The module
explains the role of Management Plane Protection and how to implement it. You also create
a TACACS+ AAA configuration on the router, and you create user and router policies on the
TACACS+ server. The module also reviews the CLI commands you can use to monitor and
troubleshoot AAA security operations.
- Module 3: Monitoring the Cisco IOS XR Software Operating System
architecture of the Cisco IOS XR Software operating system. It describes both the logical
and physical architecture and the major components of the operating system. This module
also introduces the commands used to monitor the Cisco IOS XR Software system.
- Module 4: Monitoring Processes
Describes the mandatory processes in Cisco IOS XR
Software. It explains how to identify and locate abnormal memory usage and how to monitor
system performance. The module describes how to monitor problems relating to process
failures, stuck processes, and high CPU consumption processes. It also identifies the types
of information to capture before contacting Cisco Technical Support.
- Module 5: Interprocess Communication
Describes how IPC occurs in Cisco IOS XR
Software. It explains the ways in which processes perform message passing, and it
describes the methods and mechanics of IPC.
- Module 6: Network Time Synchronization
Describes the function of the Network Time
Protocol (NTP) server and explains the service modes. The module also presents the
commands used to configure and verify the NTP server.
- Module 7: Error Messages and Core Dumps
Provides an overview of system error
messages and core dumps. It explains how to interpret logging messages and to configure
exception reporting and logging. The module also explains how to manually generate a core
dump and use core dump information for troubleshooting purposes.
- Module 8: Cisco IOS XR Software Packet Forwarding
Examines the show commands that
you can use to troubleshoot packet flow on the normal, exception, and "for-us" data paths.
- Module 9: Troubleshooting Traffic Flow on the Cisco CRS-1 Router
Describes how to
trace packet flow through the Cisco CRS-1 line cards and switching fabric using show
commands. It explains how to interpret the command output to identify and isolate fault
conditions. This module also describes how to control switching fabric components.
- Module 10: Cisco IOS XR Software Emergency Recovery Procedures
emergency recovery procedures for operating system recovery, CRS-1 and Cisco IOS XR
12000 system recovery, and Cisco IOS XR Software configuration and password recovery.
- Module 11: Troubleshooting Cisco XR 12000 Traffic Flow
Describes packet flow through
the Cisco IOS XR 12000 line cards and explains how to troubleshoot packet flow issues in
the switching fabric. This module also identifies and isolates faults using the information in
show command output.
- Module 12: Deploying and Verifying QoS on the Cisco CRS-1 Router
processing on the Cisco CRS-1 line card and switching fabric. It explains the QoS
mechanisms used for control and local traffic. This module also presents the modular QoS
CLI (MQC) commands used to configure and verify QoS for traffic.
The lab outline is as follows:
- Lab 1: Setting Up the Initial Configuration
- Lab 2: Configuration Management
- Lab 3: AAA Security and TACACS+
- Lab 4: Monitoring Cisco IOS XR Software System
- Lab 5: Monitoring Processes
- Lab 6: Network Time Synchronization
- Lab 7: Error Messages and Core Dumps
- Lab 8: Troubleshooting Packet Forwarding
- Lab 9: Troubleshooting Traffic Flow Thru the Cisco CRS-1
- Lab 10: Emergency Recovery Procedures
- Lab 11: Troubleshooting Traffic Flow Thru the Cisco XR 12000
- Lab 12: Deploying and Verifying QoS in the Cisco CRS-1