H3C Technologies H3C S12500 Series Switches - Manual (Page 236)

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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 learns the information by itself.
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.
To configure MBGP route redistribution:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter IPv4 MBGP address
family view.
ipv4-family multicast N/A
4. Configure route redistribution
from another routing protocol.
• 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 ]
Use either method.
By default, no route redistribution
is configured by default.
The allow-direct keyword is
available only when the specified
routing protocol is OSPF.
Configure default route redistribution into MBGP
Using the import-route command cannot redistribute any default route into MBGP. This task allows you
to do so.
To configure MBGP to redistribute a default route from another protocol:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter MBGP address family
view.
ipv4-family multicast N/A
4. Enable route redistribution
from another routing protocol.
import-route protocol [ { process-id
| all-processes } [ allow-direct |
med med-value | route-policy
route-policy-name ] * ]
By default, no route redistribution
is configured.
The allow-direct keyword is
available only when the specified
routing protocol is OSPF.