isis-instance
Syntax
isis-instance igpinstance-
name{ ... }
Hierarchy Level
[edit logical-systems logical-system-name protocols], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols], [edit protocols]
Description
Enable multiple IGP instances of IS-IS routing on the routing device.
The isis-instance statement is the one statement you must
include in the configuration to run multiple IS-IS on the routing
device.
Enabling IS-IS on an interface (by including the interface
statement at the [edit protocols isis-instance
igpinstance-name] hierarchy level),
disabling it (by including the disable statement), and not
actually having IS-IS run on an interface (by including the
passive statement) are mutually exclusive states.
All the configuration options available under the [edit protocols
isis-instance igpinstance-name] hierarchy
level are similar to the options available under the [edit protocols
isis] hierarchy level.
Junos OS does not support configuring the same logical interface in multiple IGP instances of IS-IS.
We do not support graceful restart for an IS-IS instance. Graceful restart is enabled by default. Therefore, you must explicitly disable graceful restart.
Default
IS-IS is disabled on the routing device.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 21.1R1.