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JUNOSe 11.1.x Service Availability Configuration Guide
The following example shows how to configure a backup ICR partition on an E320
router. Configure the interface on which the ICR partition resides and then create a
new VRRP instance that manages the backup ICR partition. The value you assign to
the priority keyword determines the state of the ICR partition. In the case of a backup
ICR partition, specify a value lower than the priority of the master ICR partition.
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Grouping subscribers based on S-VLAN IDs is the default grouping method for ICR
partitions. You can also explicitly choose S-VLAN as the grouping option as shown
in this example. To add a group of random S-VLAN IDs, use the svlan-list command.
To group subscribers by VLAN IDs, use the vlan keyword instead of the svlan
keyword. To add a group of random VLAN IDs, use the vlan-list command.
NOTE: While grouping subscribers based on VLAN IDs, you can use corresponding
VLAN grouping commands. However, the svlan-list-explicit command does not
have any corresponding VLAN command.
Related Topics
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Example: Configuring ICR Partitions That Group Subscribers by S-VLAN ID
host1 (config-if)#ip vrrp 1 icr-partition svlan-list-explicit 120 1 120 2
advertise-mac control-interface use-default-mac
host1 (config-if)#exit
Configure the interface on which the ICR partition resides.
host2 (config)#interface gigabitEthernet 11/1/0
host2 (config-if)#encapsulation vlan
host2 (config-if)#interface gigabitEthernet 11/1/0.10
host2 (config-if)#svlan id 10 1 icr-control-interface
host2 (config-if)#ip address 3.5.1.2/24
Configure the VRRP instance based on the ICR partition requirements.
host2 (config-if)#ip vrrp 1 virtual-address 3.5.1.10
host2 (config-if)#ip vrrp 1 priority 100
host2 (config-if)#ip vrrp 1 timers-learn
host2 (config-if)#ip vrrp 1 enable
Create and identify the ICR partition.
host2 (config-if)#ip vrrp 1 icr-partition part1Backup
Group subscribers based on S-VLAN IDs.
host2 (config-if)#ip vrrp 1 icr-partition group svlan
host2 (config-if)#ip vrrp 1 icr-partition svlan-range 100 110 control-interface
host2 (config-if)#ip vrrp 1 icr-partition svlan-range 111 119 advertise-mac
use-default-mac
host2 (config-if)#ip vrrp 1 icr-partition svlan-list-explicit 120 1 120 2
advertise-mac control-interface use-default-mac
host2 (config-if)#exit
ICR Overview on page 127
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