Default-Information Originate; Inter-Area-Propagate; Is-Is Attributes And Operators - Cisco ASR 9000 Series Configuration Manual

Implementing Routing Policy

Default-Information Originate

The default-information originate attach point within IS-IS allows the default route 0.0.0.0/0 to be conditionally
injected into the IS-IS route database.
The following example shows how to generate an IPv4 unicast default route if any of the routes that match
10.0.0.0/8 ge 8 le 25 is present in the RIB. The cost of the IS-IS route is set to 100 and the level is set to
level-1-2 on the default route that is injected into the IS-IS database.
route-policy isis-originate
if rib-has-route in (10.0.0.0/8 ge 8 le 25) then
endif
end-policy
router isis instance_10
address-family ipv4 unicast

Inter-area-propagate

The inter-area-propagate attach point within IS-IS allows the prefixes to be conditionally propagated from
one level to another level within the same IS-IS instance.
The following example shows how to allow prefixes to be leaked from the level 1 LSP into the level 2 LSP
if any of the prefixes match 10.0.0.0/8 ge 8 le 25.
route-policy isis-propagate
if destination in (10.0.0.0/8 ge 8 le 25) then
endif
end-policy
router isis instance_10
address-family ipv4 unicast

IS-IS Attributes and Operators

This table summarizes the IS-IS attributes and operators per attach points.
OL-30423-03
.
.
set metric 100
set level level-1-2
default-information originate policy isis_originate
.
pass
propagate level 1 into level 2 policy isis-propagate
.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
Attach Points
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