Juniper SERVICE AVAILABILITY - CONFIGURATION GUIDE V 11.1.X Configuration Manual page 12

JUNOSe 11.1.x Service Availability Configuration Guide
Chapter 5
Chapter 6
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Table of Contents
Interruption in Traffic Forwarding for Layer 3 Routing Protocols During
Unified ISSU ............................................................................................92
Recommended Settings for Routing Protocol Timers During Unified
ISSU ........................................................................................................94
Upgrading Router Software with Unified ISSU ...............................................96
Halt of Unified ISSU During Initialization Phase Overview .............................99
Halting Unified ISSU During Initialization Phase ............................................99
Halt of Unified ISSU During Upgrade Phase Overview .................................100
Halting Unified ISSU During Upgrade Phase ................................................100
Monitoring the Status of the Router During Unified ISSU .............................101
Configuring VRRP
VRRP Overview ...........................................................................................105
VRRP Terms .........................................................................................105
Platform Considerations ..............................................................................106
References ..................................................................................................106
How VRRP Works .......................................................................................107
Configuration Examples ........................................................................107
Basic VRRP Configuration ...............................................................107
Commonly Used VRRP Configuration .............................................108
VRRP Configuration Without the Real Address Owner ...................109
How VRRP Is Implemented in E Series Routers ...........................................110
Router Election Rules ............................................................................111
Configuring VRRP ........................................................................................112
Configuring the IP Interface ..................................................................112
Creating VRIDs .....................................................................................112
Configuration Steps ...............................................................................113
Changing Object Priority .............................................................................117
Monitoring VRRP .........................................................................................117
Managing Interchassis Redundancy
ICR Overview ..............................................................................................127
ICR Platform Considerations .......................................................................129
Interface Specifiers ...............................................................................129
ICR Terms ...................................................................................................130
ICR References ............................................................................................130
ICR Scaling Considerations ..........................................................................131
1:1 Subscriber Redundancy in a 4-Node ICR Cluster ............................131
Interaction with RADIUS for ICR .................................................................132
ICR Partition Accounting Overview .......................................................133
Configuring an ICR Partition ........................................................................134
Configuring the Interface on Which the ICR Partition Resides .....................135
Configuring VRRP Instances to Match ICR Requirements ............................135
Naming ICR Partitions .................................................................................136
Grouping ICR Subscribers Based on S-VLAN IDs ..........................................137
Grouping ICR Subscribers Based on VLAN IDs .............................................138
Example: Configuring ICR Partitions That Group Subscribers by S-VLAN
ID .........................................................................................................139
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