Command Line Reference Guide

816 | Intermediate System to Intermediate System (IS-IS)
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Usage
Information
To redistribute a default route (0.0.0.0/0), configure the default-information originate command.
Changing or disabling a keyword in this command will not affect the state of the other command
keywords.
When an LSP with an internal metric is received, the FTOS considers the route cost taking into
consideration the advertised cost to reach the destination.
Redistributed routing information is filtered with the distribute-list out command to ensure that the
routes are properly are passed to the receiving routing protocol.
How a metric value assigned to a redistributed route is advertised depends on how on the configuration
of the metric-style command. If the metric-style command is set for narrow or transition mode and the
metric value in the redistribute command is set to a number higher than 63, the metric value advertised
in LSPs will be 63. If the metric-style command is set for wide mode, an the metric value in the
redistribute command is advertised.
Related
Commands
redistribute bgp
e
Redistribute routing information from a BGP process. (new command in Release 6.3.1)
Syntax
redistribute bgp AS number [level-1| level-1-2 | level-2] [metric metric-value] [metric-type
{external
| internal}] [route-map map-name]
To return to the default values, enter the no redistribute bgp command with the appropriate
parameters.
Parameters
default-information originate Generate a default route for the IS-IS domain.
distribute-list out Suppress networks from being advertised in updates. Redistributed routing
information is filtered by this command.
AS number
Enter a number that corresponds to the Autonomous System number.
Range: 1 to 65355
level-1
(OPTIONAL) Routes are independently redistributed into IS-IS Level 1 routes only
level-1-2
(OPTIONAL) Routes are independently redistributed into IS-IS Level 1 and Level 2
routes.
level-2
(OPTIONAL) Routes are independently redistributed into IS-IS as Level 2 routes
only.
This is the default.
metric metric-value
(OPTIONAL) The value used for the redistributed route. You should use a metric
value that is consistent with the destination protocol.
Range: 0 to 16777215
Default: 0.
metric-type
{external
| internal}
(OPTIONAL) The external link type associated with the default route advertised into
a routing domain. The two options are:
• external
• internal
route-map
map-name
map-name is an identifier for a configured route map.
The route map should filter imported routes from the source routing protocol to the
current routing protocol.
If you do not specify a map-name, all routes are redistributed. If you specify a
keyword, but fail to list route map tags, no routes will be imported.