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Redistributing static routes
To configure the device to redistribute static routes, enter the following command.
device(config-bgp)# redistribute static
Syntax:
[no] redistribute static
[
metric
num
] [
route-map
map-name
]
The
static
parameter indicates that you are redistributing static routes into BGP4.
The
metric
num
parameter changes the metric. You can specify a value from 0 - 4294967295. The default is 0.
The
route-map
map-name
parameter specifies a route map to be consulted before adding the static route to the BGP4 route table.
NOTE
The route map you specify must already be configured on the
device.
Redistributing IBGP routes
By default, the device does not allow redistribute IBGP routes from BGP4 into RIP, or OSPF. This behavior helps eliminate routing loops.
In non-default VRF instances, by default, the device does allow redistribution IBGP routes from BGP4 into RIP, OSPF.
To enable the device to redistribute BGP4 routes into OSPF and RIP, enter the following command.
device(config-bgp-router)# bgp-redistribute-internal
Syntax:
[no] bgp-redistribute-internal
To disable redistribution of IBGP routes into RIP, IS-IS, and OSPF, enter the
bgp-redistribute-internal
command.
Filtering
This section describes the following:
•
AS-path filtering
•
Defining and applying IP prefix lists
•
Defining neighbor distribute lists
•
Defining route maps
•
Configuring cooperative BGP4 route filtering
AS-path filtering
You can filter updates received from BGP4 neighbors based on the contents of the AS-path list accompanying the updates. For
example, to deny routes that have the AS 10.3.2.1 in the AS-path from entering the BGP4 route table, you can define a filter.
The device provides the following methods for filtering on AS-path information:
•
AS-path filters
•
AS-path ACLs
NOTE
The device cannot support AS-path filters and AS-path ACLs at the same time. Use one method or the other, but do not mix
methods.
Filtering
Brocade FastIron Layer 3 Routing Configuration Guide
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Summary of Contents for ICX 7250 series
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