OcNOS-RON : Layer 3 Guide : Intermediate System to Intermediate System Command Reference : IS-IS Commands : default-information originate
default-information originate
Use this command to originate reachability information to a default route into link-state packets.
There is no default information in a Level-2 domain by default, while a Level-1 router calculates a default to L1L2 route during SPF calculation. This command originates a default route into a Level-2 domain.
Use the no parameter with this command to withdraw reachability information to a default route from link-state packets.
Command Syntax
default-information originate (always| level-1|) (route-map WORD|)
no default-information originate (always| level-1|)
Parameters
originate
Specify to distribute a default route
always
The default route is advertised even if there is no default route in the router’s routing table.
level-1
Distribute in level-1.
route-map
Identifies other filtering options via a route map.
Default
There is no default information in Level-2 domain by default, while Level-1 router calculates default to L1L2 route during SPF calculation. This command enables to originate default route into Level-2 domain. As an added option, if the user wants to originate the default route in L1 LSP, the “level-1” parameter can be used as follows:
default-information originate level-1
Command Mode
Router mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#router isis bb
(config-router)#default-information originate
(config-router)#exit
(config)#exit
 
Last modified date: 08/28/2023