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 followed by a number to
assign to the route. The range is 0 to 16777215.
route-map
map-
name
(OPTIONAL) A default route is generated by the routing process 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 8.3.12.0 Introduced on the S4810.
Version 7.5.1.0 Added IPv6 ISIS support.
Version 6.3.1.0 Introduced.
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.
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