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Enabling the logging of neighbor state changes, Controlling route distribution and reception, Configuring bgp route summarization – H3C Technologies H3C S12500-X Series Switches User Manual

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Step Command

Remarks

2.

Enter BGP view or BGP-VPN

instance view.

Enter BGP view:
bgp as-number

Enter BGP-VPN instance view:

a.

bgp as-number

b.

ip vpn-instance
vpn-instance-name

N/A

3.

Enter BGP IPv4 unicast

address family view or
BGP-VPN IPv4 unicast

address family view.

address-family ipv4 [ unicast ]

N/A

4.

Enable route redistribution

from the specified IGP into
BGP.

import-route protocol [ { process-id
| all-processes } [ med med-value |

route-policy route-policy-name ] * ]

By default, BGP does not
redistribute IGP routes.

5.

(Optional.) Enable default

route redistribution into BGP.

default-route imported

By default, BGP does not
redistribute default routes.

To configure BGP to redistribute IGP routes (IPv6):

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter BGP view or BGP-VPN
instance view.

Enter BGP view:

bgp as-number

Enter BGP-VPN instance view:

a.

bgp as-number

b.

ip vpn-instance

vpn-instance-name

N/A

3.

Enter BGP IPv6 unicast
address family view or

BGP-VPN IPv6 unicast
address family view.

address-family ipv6 [ unicast ]

N/A

4.

Enable route redistribution
from the specified IGP into

BGP.

import-route protocol [ process-id
[ med med-value | route-policy

route-policy-name ] * ]

By default, BGP does not
redistribute IGP routes.

5.

(Optional.) Enable default

route redistribution into BGP.

default-route imported

By default, BGP does not
redistribute default routes.

73B

Controlling route distribution and reception

This section describes how to control route distribution and reception.

314B

Configuring BGP route summarization

Route summarization can reduce the number of redistributed routes and the routing table size. IPv4 BGP

supports automatic route summarization and manual route summarization. Manual summarization takes
precedence over automatic summarization. IPv6 BGP supports only manual route summarization.

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