Juniper IGP - CONFIGURATION GUIDE V11.1.X, Configuration Manual

Page: 377 / 454

■
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 Adjacency
You can configure the type (level) of adjacency you want to use on an IS-IS interface.
isis circuit-type
Configuring IS-IS Interface-Specific Parameters
■ 353
Chapter 6: Configuring IS-IS