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C

HAPTER

 40: BGP/MPLS VPN C

ONFIGURATION

 C

OMMANDS

The function of the keywords involved in the above commands is shown in the 
following table.

# Create an aggregation entry in the BGP routing table of VPN instance.

[3Com-bgp-af-vpn-instance] aggregate 192.213.0.0 255.255.0.0 

Route-policy view

None

Use the apply mpls-label command to configure the system to assign MPLS 
labels to the public network routes that meet the filer condition of Route-policy.

Use the undo apply mpls-label command to cancel this configuration.

By default, the public network routes carry no labels.

Related command: if-match mpls-label.

# Define an Apply clause to assign labels to routes meeting the Route-policy filter 
condition.

[3Com-route-policy] apply mpls-label 

Table 93   Keywords function

as-set 

By setting this keyword, you can create an aggregated route whose AS 
path contains the information of all the aggregation routes. This keyword 
is not recommended when aggregating many AS paths because frequent 
changes of the specific route may result in routing oscillation. 

detail-suppresse
d 

This keyword suppresses advertisement of all the specific routes, but not of 
the aggregated routes. Using the peer filter-policy command, you can 
suppress some specific routes. 

suppress-policy  This keyword enables the creation of an aggregate route but disables the 

advertising of the specified routes. Using the if-match clause in the 
route-policy command, you can choose to suppress advertisement of 
some specific routes. 

origin-policy 

Using this command, you can only choose the specific routes matching the 
Route-policy to create aggregated route. 

attribute-policy  Using this keyword, you can set the attributes of the aggregation route. 

The peer route-policy command can also enables you to complete the 
same setting.