H3C Technologies H3C S10500 Series Switches - Manual (Page 253)

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Controlling route advertisement and reception
Prerequisites
You need to configure MBGP basic functions before configuring this task.
Configuring MBGP route redistribution
MBGP can advertise routing information in the local AS to neighboring ASs. It redistributes such routing
information from IGP into its routing table rather than learning the information by itself.
Follow these steps to configure MBGP route redistribution:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv4 MBGP address family
view
ipv4-family multicast —
Configure MBGP route
redistribution
Enable route redistribution from
another routing protocol:
import-route protocol [ { process-id
| all-processes } [ allow-direct |
med med-value | route-policy
route-policy-name ] * ]
Inject a network into the MBGP
routing table:
network ip-address [ mask |
mask-length ] [ short-cut |
route-policy route-policy-name ]
Required
Use either command
No route redistribution is
configured by default.
The allow-direct keyword is
available only when the specified
routing protocol is OSPF.
NOTE:
•
The Origin attribute of routes redistributed into the MBGP routing table with the import-route command
is Incomplete.
• The Origin attribute of routes injected into the MBGP routing table with the network command is IGP.
• The networks to be injected must exist in the local IP routing table, and using a routing policy makes
route control more flexible.
Configure default route redistribution into MBGP
You cannot use the import-route command to redistribute any default route into the MBGP routing table.
This task allows you to redistribute default routes in another way.
Follow these steps to configure MBGP to redistribute a default route from another protocol:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —