3com S7906E Manuel De Montage

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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. 
ACL 
IP prefix list 
Route policy 
AS-path ACL