3com S7906E Guide De Référence

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summary automatic 
Syntax 
summary automatic 
undo summary automatic 
View 
BGP view/BGP-VPN instance view 
Default Level 
2: System level 
Parameters 
None 
Description 
Use the summary automatic command to enable automatic summarization for redistributed subnets.  
Use the undo summary automatic command to disable automatic summarization.  
By default, automatic summarization is disabled.  
Note that:  
Neither the default route nor the routes imported using the network command can be summarized 
automatically.  
The summary automatic command helps BGP limit the number of routes redistributed from IGP 
to reduce the size of the routing table. 
Examples 
# In BGP view, enable automatic route summarization.  
<Sysname> system-view 
[Sysname] bgp 100 
[Sysname-bgp] summary automatic 
# In BGP-VPN instance view, enable automatic summarization (the VPN has been created). 
<Sysname> system-view 
[Sysname] bgp 100 
[Sysname-bgp] ipv4-family vpn-instance vpn1 
[Sysname-bgp-vpn1] summary automatic 
synchronization (BGP view) 
Syntax 
synchronization 
undo synchronization 
View 
BGP view