D-Link xStack DGS-3620 Series Reference Manual page 29

DGS-3620 m/ mSW Rls. 1.02.000
2-3 aggregate-address
aggregate-address NETWORK-ADDRESS [summary-only] [as-set]
no aggregate-address NETWORK-ADDRESS
Syntax Description
NETWORK-
ADDRESS
summary-only
as-set
Default
Command Mode
Usage Guideline
Example
Switch# configure terminal
Switch(config)# router bgp 65534
Switch(config-router)# aggregate-address 172.0.0.0/8 summary-only
CLI Reference Guide
Use this command to configure BGP aggregate entries. Use the no form of this
command to delete an aggregate entry.
Specify the network address and the sub-network mask that BGP will aggregate.
For example, the format of NETWORK-ADDRESS can be 10.9.18.2/8.
(Optional) Filters all more-specific routes from updates.
(Optional) Generates autonomous system set path information.
None.
Router configuration mode
Address family configuration mode (IPv4 Unicast and VRF)
Aggregates are used to minimize the size of routing tables. Aggregation
combines the characteristics of several different routes and advertises a single
route. The aggregate-address command creates an aggregate entry in the BGP
routing table if any more-specific BGP routes are available in the specified range.
Using the summary-only parameter advertises the prefix only, suppressing the
more-specific routes to all neighbors.
Use the as-set parameter to reduce the size of path information by listing each
AS number only once, even if it was included in multiple paths that were
aggregated. The as-set parameter is useful when aggregation of information
results in incomplete path information.
You can verify your settings by entering show ip bgp aggregate command.
This example shows how to propagate network 172.0.0.0 and suppresses the
more specific route 172.10.0.0:
aggregate-address
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