Chapter 29
| IP Routing Commands
Open Shortest Path First (OSPFv3)
– 889 –
Related Commands
redistribute (889)
redistribute This command redistributes external routing information from other routing
protocols and static routes into an autonomous system. Use the no form to disable
this feature or to restore the default settings.
Syntax
redistribute {connected | rip | static} [metric metric-value]
[metric-type type-value]
no redistribute {connected | rip | staticstatic} [metric] [metric-type]
connected - Imports all currently connected entries.
static - IPv6 static routes will be imported into this Autonomous System.
metric-value - Metric assigned to all external routes for the specified
protocol. (Range: 0-16777214: Default: 20)
type-value
1 - Type 1 external route
2 - Type 2 external route (default) - Routers do not add internal route
metric to external route metric.
Command Mode
Router Configuration
Default Setting
redistribution - none
metric-value - 20
type-metric - 2
Command Usage
◆ This command is used to import routes learned from other routing protocols
into the OSPF domain, and to generate AS-external-LSAs.
◆ When you redistribute external routes into an OSPF autonomous system (AS),
the router automatically becomes an autonomous system boundary router
(ASBR).
◆ Metric type specifies the way to advertise routes to destinations outside the AS
through External LSAs. When a Type 1 LSA is received by a router, it adds the
internal cost to the external route metric. In other words, the cost of the route
from any router within the AS is equal to the cost associated with reaching the
advertising ASBR, plus the cost of the external route. When a Type 2 LSA is
received by a router, it only uses the external route metric to determine route
cost.
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