default-information originate
Generates a default route into an IS-IS routing domain and controls the distribution of default
information.
Syntax
default-information originate [always] [metric
metric
] [route-
map
map-name
]
To disable the generation of a default route into the specified IS-IS routing domain,
use the
no default-information originate [always] [metric
metric
]
[route-map
map-name
]
command.
Parameters
always
(OPTIONAL) Enter the keyword
always
to have the default
route always advertised.
metric
metric
(OPTIONAL) Enter the keyword
metric
then a number to
assign to the route. The range is from 0 to 16777215.
route-map
map-name
(OPTIONAL) A default route the routing process generates if
the route map is satisfied.
Defaults
Not configured.
Command
Modes
• ROUTER ISIS (for IPv4)
• CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command
History
Version 9.2(0.0)
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
When you use this command to redistribute routes into a routing domain, the
router becomes an autonomous system (AS) boundary router. An AS boundary
router does not always generate a default route into a routing domain. The router
still requires its own default route before it can generate one.
How a metric value assigned to a default route advertises depends on the
metric-
style
command configuration. If the
metric-style
command is set for Narrow
mode and the metric value in the
default-information originate
command
is set to a number higher than 63, the metric value advertised in the LSPs is 63. If
the
metric-style
command is set for Wide mode, the metric value in the
default-information originate
command is advertised.
Related
Commands
•
redistribute
— redistributes routes from one routing domain to another routing
domain.
•
isis metric
— configures a metric for an interface.
•
metric-style
— sets the metric style for the router.
•
show isis database
— displays the IS-IS link state database.
Intermediate System to Intermediate System (IS-IS)
799
