3com S7906E 参考指南

 

1-2 

Table 1-1 Functions of the keywords  

Used to create a summary route, whose AS path contains the AS path 
information of summarized routes. Use this keyword carefully when many 
AS paths need to be summarized, because the frequent changes of these 
specific routes may lead to route flaps. 

This keyword does not suppress the summary route, but it suppresses the 
advertisement of all the more specific routes. To summarize only some 
specific routes, use the peer filter-policy command. 

Used to create a summary route and suppress the advertisement of some 
summarized routes. If you want to suppress some routes selectively and 
leave other routes still advertised, use the if-match clause of the 
route-policy command. 

Selects only routes satisfying the route policy for route summarization 

Sets attributes except the AS-PATH attribute for the summary route. The 
same work can be done by using the peer route-policy command. 

 

Use the aggregate command to create a summary route in the IPv4 MBGP routing table.  

Use the undo aggregate command to remove a summary route. 

By default, no summary route is configured. 

# In IPv4 MBGP address family view, create a summary of 192.213.0.0/16 in the IPv4 MBGP routing 

table. 

<Sysname> system-view 

[Sysname]bgp 100 

[Sysname-bgp]ipv4-family multicast 

[Sysname-bgp-af-mul]aggregate 10.40.0.0 255.255.0.0 

balance number 

IPv4 MBGP address family view 

2: System level 

number: Number of MBGP routes for load balancing, in the range 1 to 4. When it is set to 1, load 

balancing is disabled.