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High Availability Features on EX4600

Junos® OS for EX4600 Switches, Release 13.2X51

Overview
Configuration
Administration
Troubleshooting

Software Feature Overview

Understanding Graceful Routing Engine Switchover in the Junos OS

Graceful Routing Engine Switchover System Requirements

Nonstop Active Routing Concepts

Nonstop Active Routing System Requirements

Nonstop Bridging Concepts

Nonstop Bridging System Requirements

Graceful Restart Concepts

Understanding Nonstop Software Upgrade on a Virtual Chassis and Mixed Virtual Chassis

Understanding VRRP

Software Feature Overview
Understanding Graceful Routing Engine Switchover in the Junos OS Graceful Routing Engine Switchover System Requirements Nonstop Active Routing Concepts Nonstop Active Routing System Requirements Nonstop Bridging Concepts Nonstop Bridging System Requirements Graceful Restart Concepts Understanding Nonstop Software Upgrade on a Virtual Chassis and Mixed Virtual Chassis Understanding VRRP

Software Feature Overview

Understanding Graceful Routing Engine Switchover in the Junos OS

Graceful Routing Engine Switchover System Requirements

Nonstop Active Routing Concepts

Nonstop Active Routing System Requirements

Nonstop Bridging Concepts

Nonstop Bridging System Requirements

Graceful Restart Concepts

Understanding Nonstop Software Upgrade on a Virtual Chassis and Mixed Virtual Chassis

Understanding VRRP

Configuration Tasks for Graceful Restart
Configuring Routing Protocols Graceful Restart

Configuration Tasks for Graceful Switchover
Configuring Graceful Routing Engine Switchover Configuring Graceful Routing Engine Switchover in a Virtual Chassis (CLI Procedure) Resetting Local Statistics

Configuration Tasks for Graceful Switchover

Configuring Graceful Routing Engine Switchover

Configuring Graceful Routing Engine Switchover in a Virtual Chassis (CLI Procedure)

Resetting Local Statistics

Configuration Tasks for Nonstop Bridging
Configuring Nonstop Bridging on Switches (CLI Procedure) Resetting Local Statistics

Configuration Tasks for Nonstop Bridging

Configuring Nonstop Bridging on Switches (CLI Procedure)

Resetting Local Statistics

Configuration Example for Nonstop Active Routing
Example: Configuring Nonstop Active Routing on Switches

Configuration Tasks for Nonstop Active Routing
Configuring Nonstop Active Routing on Switches Tracing Nonstop Active Routing Synchronization Events

Configuration Tasks for Nonstop Active Routing

Configuring Nonstop Active Routing on Switches

Tracing Nonstop Active Routing Synchronization Events

Configuration Task for NSSU
Upgrading Software on a Virtual Chassis and Mixed Virtual Chassis Using Nonstop Software Upgrade

Configuration Example for VRRP
Example: Configuring VRRP for Load Sharing

Configuration Tasks for VRRP
Configuring Basic VRRP Support Configuring VRRP Authentication (IPv4 Only) Configuring the Startup Period for VRRP Operations Configuring the Advertisement Interval for the VRRP Master Configuring VRRP Preemption and Hold Time Configuring a Route to Be Tracked Configuring a Logical Interface to Be Tracked Configuring a Backup to Accept Packets Destined for the Virtual IP Address Configuring Passive ARP Learning for VRRP Backups Configuring the Silent Period Configuring Inheritance for a VRRP Group

Configuration Tasks for VRRP

Configuring Basic VRRP Support

Configuring VRRP Authentication (IPv4 Only)

Configuring the Startup Period for VRRP Operations

Configuring the Advertisement Interval for the VRRP Master

Configuring VRRP Preemption and Hold Time

Configuring a Route to Be Tracked

Configuring a Logical Interface to Be Tracked

Configuring a Backup to Accept Packets Destined for the Virtual IP Address

Configuring Passive ARP Learning for VRRP Backups

Configuring the Silent Period

Configuring Inheritance for a VRRP Group

Configuration Statements for Graceful Restart
disable disable (BGP Graceful Restart) graceful-restart (Enabling Globally) graceful-restart (Protocols BGP) graceful-restart (Protocols OSPF) helper-disable no-strict-lsa-checking notify-duration redundancy (Graceful Switchover) restart-duration restart-time (BGP Graceful Restart) stale-routes-time

Configuration Statements for Graceful Restart

disable

disable (BGP Graceful Restart)

graceful-restart (Enabling Globally)

graceful-restart (Protocols BGP)

graceful-restart (Protocols OSPF)

helper-disable

no-strict-lsa-checking

notify-duration

redundancy (Graceful Switchover)

restart-duration

restart-time (BGP Graceful Restart)

stale-routes-time

Configuration Statement for Graceful Switchover
graceful-switchover redundancy

Configuration Statement for Graceful Switchover

graceful-switchover

redundancy

Configuration Statement for Nonstop Bridging
nonstop-bridging

Configuration Statements for Nonstop Routing
nonstop-routing synchronize traceoptions

Configuration Statements for Nonstop Routing

nonstop-routing

synchronize

traceoptions

Configuration Statements for VRRP
accept-data advertise-interval asymmetric-hold-time authentication-key authentication-type bandwidth-threshold failover-delay fast-interval hold-time interface preempt priority priority-cost priority-hold-time route startup-silent-period traceoptions track virtual-address vrrp-group

Configuration Statements for VRRP

startup-silent-period

Administration
Operational Mode Commands for Graceful Restart
Verifying Graceful Restart Operation
show bgp neighbor
show log
show (ospf | ospf3) overview
Operational Mode Command for Graceful Switchover
show system switchover
show task replication
Operational Mode Command for Nonstop Routing
show task replication
Operational Mode Command for NSSU
request system software nonstop-upgrade
Operational Mode Commands for VRRP
show vrrp
Troubleshooting
Troubleshooting Procedures
Troubleshooting VRRP

Operational Mode Commands for Graceful Restart
Verifying Graceful Restart Operation show bgp neighbor show log show (ospf \| ospf3) overview

Operational Mode Command for Graceful Switchover
show system switchover show task replication

Operational Mode Command for Nonstop Routing
show task replication

Operational Mode Command for NSSU
request system software nonstop-upgrade

Operational Mode Commands for VRRP
show vrrp

Troubleshooting Procedures
Troubleshooting VRRP

Supported Platforms

EX Series

TechLibrary

High Availability Features on EX4600

Supported Platforms

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