Redistributing Bgp Routes Into Eigrp - Cisco ASR 9000 Series Configuration Manual

Implementing EIGRP
Command or Action
Step 7
redistribute {{ bgp | connected | isis | ospf | ospfv3 |
rip | static } [ as-number | instance-name ]} [ route-policy
name ]
Example:
RP/0/RSP0/CPU0:router(config-eigrp-vrf-af)#
redistribute bgp 100
Step 8
interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-eigrp-vrf-af)# interface
gigabitEthernet 0/1/5/0
Step 9 site-of-origin { as-number:number | ip-address : number }
Example:
RP/0/RSP0/CPU0:router(config-eigrp-vrf-af-if)#
site-of-origin 3:4
Step 10 commit

Redistributing BGP Routes into EIGRP

Perform this task to redistribute BGP routes into EIGRP.
Typically, EIGRP routes are redistributed into BGP with extended community information appended to the
route. BGP carries the route over the VPN backbone with the EIGRP-specific information encoded in the
BGP extended community attributes. After the peering customer site receives the route, EIGRP redistributes
the BGP route then extracts the BGP extended community information and reconstructs the route as it appeared
in the original customer site.
When redistributing BGP routes into EIGRP, the receiving provider edge (PE) EIGRP router looks for BGP
extended community information. If the information is received, it is used to recreate the original EIGRP
route. If the information is missing, EIGRP uses the configured default metric value.
If the metric values are not derived from the BGP extended community and a default metric is not configured,
the route is not advertised to the customer edge (CE) router by the PE EIGRP. When BGP is redistributed
into BGP, metrics may not be added to the BGP prefix as extended communities; for example, if EIGRP is
not running on the other router. In this case, EIGRP is redistributed into BGP with a "no-metrics" option.
OL-30423-03
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
Redistributing BGP Routes into EIGRP
Purpose
Injects routes from one routing domain into EIGRP.
Configures the interface on which EIGRP the routing
protocol runs.
Configures the site-of-origin (SoO) filtering on the
EIGRP interface.
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