Users Guide

Redistributed routing information is ltered with the distribute-list out command to ensure that
the routes are properly passed to the receiving routing protocol.
How a metric value assigned to a redistributed route is advertised depends on how on the conguration 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 is 63. If the metric-style command is set for Wide mode, the metric value in the
redistribute command is advertised.
Related Commands
• default-information originate — generates a default route for the IS-IS domain.
• distribute-list out — suppresses networks from being advertised in updates. This command lters
redistributed routing information.
redistribute bgp
Redistribute routing information from a BGP process.
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, use the no redistribute bgp command with the appropriate
parameters.
Parameters
AS number Enter a number that corresponds to the autonomous system number. The range is
from 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 setting is the default.
metric metric-value (OPTIONAL) The value used for the redistributed route. Use a metric value that is
consistent with the destination protocol. The range is from 0 to 16777215. The
default is 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 identier for a congured route map. The route map lters
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 are imported.
Defaults IS-IS Level 2 routes only
890
Intermediate System to Intermediate System (IS-IS)