Configuring Adjacency - Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual

Configuring Adjacency

You can configure the type (level) of adjacency you want to use on an IS-IS interface.
isis circuit-type
You can also accomplish the equivalent of the passive-interface command by
using the redistribute command to redistribute a connected route to level 1.
Example 1 Configures loopback 0 as a passive interface and enable IS-IS on
subinterfaces ATM 2/0.1 and ATM 2/1.1. IS-IS advertises the IP address of
loopback 0 in its link-state PDUs, but runs only on ATM 2/0.1 and ATM 2/1.1:
host1(config)#router isis floor12
host1(config-router)#net
47.0010.0000.0000.0000.0001.0001.1111.1111.1111.00
host1(config-router)#passive-interface loopback 0
host1(config-router)#exit
host1(config)#interface atm 2/0.1
host1(config-subif)#ip router isis floor12
host1(config-subif)#exit
host1(config)#interface atm 2/1.1
host1(config-subif)#ip router isis floor12
You can override the passive-interface configuration simply by issuing the
complementary command. For example, suppose you issue the following
commands after the previous configuration:
host1(config-router)#passive-interface atm 2/0.1
host1(config-router)#exit
host1(config)#interface loopback 0
host1(config-if)#ip router isis floor12
Now IS-IS advertises the IP address of ATM 2/0.1 in its link-state PDUs, but runs
only on loopback 0 and ATM 2/1.1.
Example 2 Sets a route tag on the IS-IS passive interface configured in Example
1.
host1(config)#router isis floor12
host1(config-router)#passive-interface loopback 0 tag 12
Example 3 Sets a metric and level on the IS-IS passive interface configured in
Example 1.
host1(config)#router isis floor12
host1(config-router)#passive-interface loopback 0 metric 45 level-2
Use the no version to delete the passive interface, or to remove the tag, metric,
or both.
See passive-interface
Configuring IS-IS Interface-Specific Parameters
Chapter 6: Configuring IS-IS
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