aggregate-address
(BGP)
Configures the device to aggregate routes from a range of networks into a single network prefix.
Syntax
aggregate-address
{
ip-addr
ip-mask
|
ipv6-addr
ipv6-mask
}
[
advertise-map
map-name
|
as-set
|
attribute-map
map-name
|
summary-only
|
suppress-map
map-name
]
no aggregate-address
{
ip-addr
ip-mask
|
ipv6-addr
ipv6-mask
}
[
advertise-map
map-name
|
as-set
|
attribute-map
map-name
|
summary-only
|
suppress-map
map-name
]
Command Default
The address aggregation feature is disabled. By default, the device advertises individual routes for all networks.
Parameters
-
ip-addr
- IPv4 address.
-
ip-mask
- IPv4 mask.
-
ipv6-addr
- IPv6 address.
-
ipv6-mask
- IPv6 mask.
-
advertise-map
- Causes the device to advertise the more-specific routes in the specified route map.
-
map-name
- Specifies a route map to be consulted. Range is from 1 through 63 ASCII characters.
-
as-set
- Causes the device to aggregate AS-path information for all routes in the aggregate routes from a range of networks into a single network prefix.
-
attribute-map
- Causes the device to set attributes for the aggregate routes according to the specified route map.
-
map-name
- Specifies a route map to be consulted.
-
summary-only
- Prevents the device from advertising more-specific routes contained within the aggregate route.
-
suppress-map
- Prevents the more-specific routes contained in the specified route map from being advertised.
-
map-name
- Specifies a route map to be consulted.
Modes
BGP address-family IPv4 unicast configuration mode
BGP address-family IPv6 unicast configuration mode
BGP address-family IPv4 unicast VRF configuration mode
BGP address-family IPv6 unicast VRF configuration mode
Usage Guidelines
Use the
no form of this command to restore the defaults.
Examples
The following example aggregates routes from a range of networks into a single network prefix under the IPv6 address family and advertises the paths for this route as AS_SET.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# aggregate-address 2001:db8::/32 as-set
