Juniper M Series User Manual

The configuration specified in group re0 is only applied if the current Routing Engine is in
slot 0; likewise, the configuration specified in group re1 is only applied if the current Routing
Engine is in slot 1. Therefore, both Routing Engines can use the same configuration file,
each using only the configuration statements that apply to it. Each re0 or re1 group
contains at a minimum the configuration for the hostname and the management interface
(fxp0). If each Routing Engine uses a different management interface, the group also
should contain the configuration for the backup router and static routes.
To view the existing groups configuration, use the following command in configuration
mode:
[edit]
user@host# groups
user@host# show
[edit groups]
user@host# show
re0 {
system {
host-name foo-re0;
}
interfaces {
fxp0 {
unit 0 {
family inet {
address 10.0.0.1/24;
}
}
}
}
}
re1 {
system {
host-name foo-re1;
}
interfaces {
fxp0 {
unit 0 {
family inet {
address 10.0.0.2/24;
}
}
}
}
}
Use the already-existing groups statement, and use re0 and re1 as keyword group names.
Each Routing Engine applies the slot-specific group configuration information to its
configurations.
In the main configuration body, add the rest of the configuration that will be the same
on both Routing Engines. Do not include the configuration statements that you made in
the group configurations (such as configurations for fxp0). If you configure items in the
body of the statement that also exist in the groups statement, the configuration in the
body takes precedence—the configuration from the group statement will not be inherited.
[edit]
587Copyright © 2012, Juniper Networks, Inc.
Chapter 28: Host Redundancy Overview

Juniper M Series Specifications

General

Product Series	M Series
Type	Network Router
Manufacturer	Juniper Networks
Throughput	Varies by model
Operating System	JUNOS
Switching capacity	Varies by model
Supported Interfaces	ATM
Routing Capacity	Varies by model
Forwarding Performance	Varies by model
Maximum Number of Interfaces	Varies by model
Power Supply	Redundant power supplies available
Line rate	Varies by interface type
Key Features	Advanced routing protocols
Redundancy	Redundant power supplies
Dimensions	Varies by model
Weight	Varies by model
Memory	Varies by model
Storage	Varies by model
Environmental Conditions	Operating temperature: Typically 0°C to 40°C, Humidity: 10% to 90% non-condensing

Summary

M Series Multiservice Edge Routers

M5 and M10 Router Components

M7i Router Components

M10i Router Components

M20 Router Components

M40 Router Components

M40e Router Major Hardware Components

M120 Router Major Hardware Components

M160 Router Major Hardware Components

M320 Router Major Hardware Components

T Series Core Routers

T320 Router Major Hardware Components

T640 Router Major Hardware Components

T1600 Router Major Hardware Components

TX Matrix Router Major Hardware Components

TX Matrix Plus Router Major Hardware Components

Method and Tools for Monitoring Router Components

Basic Router Component Monitoring Method

Check the Router Component Status

Details how to check router component status by inspecting LEDs, craft interface, and obtaining CLI output.

Gather Component Alarm Information

Verify the Component Problem

Describes how to test a component for failure, often by performing a swap test, without compromising router integrity.

Fix the Problem

Provides guidance on taking action to correct router alarm conditions, including component replacement or escalation.

Return the Failed Component

Monitoring Key Router Components

Packet Forwarding Engine

Describes the Packet Forwarding Engine's role in Layer 2/3 packet switching, route lookups, and forwarding.

Routing Engine

Describes the Routing Engine's function, components, and its interaction with the Packet Forwarding Engine.

Monitoring the Router Chassis

Checklist for Monitoring the Router Chassis

Check the Router Chassis Component Status

Details how to check the status of installed router chassis components via CLI and faceplate inspection.

Check Router Alarms

Verify Router Component Failure

Describes how to verify component failure, typically by performing a swap test on the component.

Replace a Failed Component

Provides instructions on replacing a failed component, including locating serial numbers and obtaining RMA.

Monitoring the Routing Engine

Checklist for Monitoring the Routing Engine

Monitor the Routing Engine Status

Details how to monitor the Routing Engine status to confirm proper functioning and check for alarms.

Check the Routing Engine LEDs

Monitoring FPCs

Checklist for Monitoring FPCs

Checking the FPC Status

Details how to check FPC status and utilization, uptime, temperature, and LED states.

Checking for FPC Alarms

Verifying FPC Failure

Provides steps to verify FPC failure, including checking connections, fuses, and performing swap tests.

Replace the FPC

Describes the procedure for replacing an FPC, including taking it offline and handling components.

Monitoring PICs

Checklist for Monitoring PICs

Monitoring the Craft Interface

Checklist for Monitoring the Craft Interface

Monitoring the Craft Interface Status

Details how to check the craft interface status and environmental status.

Verifying Craft Interface Failure

Provides steps to verify craft interface failure, including checking alarms and error messages.

Replacing the Craft Interface

Describes the procedure for replacing the craft interface, including ESD precautions and removal steps.

Monitoring Power Supplies

Checklist for Monitoring Power Supplies

Checking the Power Supply Status

Explains how to check power supply status and environmental status via CLI and LEDs.

Checking for Power Supply Alarms

Verifying Power Supply Failure

Provides steps to verify power supply failure, including checking switches, circuit breakers, and performing swap tests.

Replacing the Power Supplies

Describes the procedure for replacing power supplies, including safety precautions and hot-swap capabilities.

Monitoring the Cooling System

Checklist for Monitoring the Cooling System

Checking the Cooling System Status

Details how to check the cooling system status, including fan and impeller operation.

Checking the Cooling System Alarms

Verifying a Fan Failure

Describes how to verify a fan failure by performing a swap test and checking connections.

Replacing a Cooling System Component

Describes the procedure for replacing cooling system components, emphasizing hot-swap capabilities.

Maintaining the Cable Management System, Cables, and Connectors

Checklist for Maintaining Cables and Connectors

Checking the PIC Port Status

Explains how to check PIC port status by examining PIC or FPC LEDs and using CLI commands.

Monitoring the Host Subsystem

Checklist for Monitoring the Host Subsystem

Checking the Host Subsystem Status

Details how to check the host subsystem status using the CLI and craft interface LEDs.

Checking the Routing Engine Status

Describes how to check the Routing Engine status, including state, temperature, and CPU utilization.

Checking the Control Board Status

Explains how to monitor the Control Board status, including environmental and LED indicators.

Monitoring Control Boards

Checklist for Monitoring the Control Board

Monitor the Control Board Status

Details how to monitor the Control Board status, including environmental and craft interface information.

Check the Control Board Alarms

Replace a Control Board

Describes the procedure for replacing a Control Board, including swap tests and ESD precautions.

Return the Control Board

Monitoring Redundant SCGs

Checklist for Monitoring the Redundant SCG

Monitor the Redundant SCG Status

Details how to monitor the SCG status, including environmental status and LED states.

Determine Redundant SCG Mastership

Monitoring Redundant SIBs

Checklist for Monitoring Redundant SIBs

Monitoring Redundant SIB Status

Describes how to monitor SIB status, including summary status, LED states, and environmental status.

Displaying SIB Alarms

Verifying SIB Failure

Provides steps to verify SIB failure by checking connection, fuses, and performing swap tests.

Monitoring M40 Router-Specific Components

Monitoring the SCB

Provides a checklist for monitoring the System Control Board (SCB), including status, alarms, and hardware information.

Monitoring M20 Router-Specific Components

Monitoring the SSB

Provides a checklist for monitoring the System and Switch Board (SSB) for proper allocation and transfer of data packets.

Monitoring M7i and M10i Router-Specific Components

Monitoring the CFEB

Provides a checklist for monitoring Compact Forwarding Engine Boards (CFEBs) for route lookup, filtering, and switching.

Monitoring the HCM

Details how to monitor High-Availability Chassis Managers (HCMs) for control and monitoring functions.

Monitoring the FIC

Explains how to monitor Fixed Interface Cards (FICs) for packet reception, transmission, and system alarm status.

Monitoring M5, M10 and M120 Router-Specific Components

Monitoring the FEB

Provides a checklist for monitoring Forwarding Engine Boards (FEBs) for proper forwarding processes.

Monitoring Redundant Router Components

Monitoring Redundant Routing Engines

Details how to monitor redundant Routing Engines, including status, mastership, and alarms.

Monitoring Redundant Power Supplies

Explains how to monitor redundant power supplies to ensure uninterrupted power distribution.

Monitoring Redundant Cooling System Components

Provides a checklist for monitoring redundant cooling system components for acceptable operating temperatures.

Monitoring Redundant SIBs

Monitoring Redundant SCGs

Monitoring Redundant Control Boards

Monitoring Redundant MCSs

Monitoring Redundant SFMs

Monitoring Redundant PCGs

Monitoring Redundant SSBs

Monitoring Redundant CFEBs

Monitoring Redundant HCMs