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Configure manual route summarization, Prerequisites, Advertising a default route to a peer or peer – H3C Technologies H3C S7500E Series Switches User Manual

Page 226: Group, Configuring bgp route distribution/reception, Filtering policies

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To do…

Use the command…

Remarks

Configure automatic route

summarization

summary automatic

Required

Not configured by

default.

Configure manual route summarization

By configuring manual route summarization, you can summarize both redistributed routes and routes

injected using the network command and determine the mask length for a summary route as needed.

Follow these steps to configure BGP manual route summarization:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter BGP view

bgp as-number

Configure manual route

summarization

aggregate ip-address { mask | mask-length }

[ as-set | attribute-policy route-policy-name |

detail-suppressed | origin-policy

route-policy-name | suppress-policy

route-policy-name ]*

Required

Not configured by

default.

Advertising a Default Route to a Peer or Peer Group

After this task is configured, the BGP router sends a default route with the next hop being itself to the

specified peer/peer group, regardless of whether the default route is available in the routing table.

Follow these steps to advertise a default route to a peer or peer group:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter BGP view

bgp as-number

Advertise a default route to a peer

or peer group

peer { group-name | ip-address }

default-route-advertise [ route-policy

route-policy-name ]

Required

Not advertised by default

Configuring BGP Route Distribution/Reception Filtering Policies

Prerequisites

You need to configure following filters as needed.

z

ACL