PLANET XGS3-24042 - Manual (Page 622)

37-261
Switch(config-vrf)#exit
Switch(config)#router bgp 100
Switch(config-router)#address-family ipv4 vrf DC1
Switch(config-router-af)#
3) Enter BGP VPNv4 address-family mode.
Switch(config)#router bgp 100
Switch(config-router)#address-family vpnv4
Switch(config-router-af)#
37.2 aggregate-address
Command:
aggregate-address [summary-only] [as-set]
no aggregate-address [summary-only] [as-set]
Function:
Configure the aggregate-address. The “no aggregate-address [summary-only]
[as-set]” command deletes the aggregate-address.
Parameter:
: IP address, length of mask.
[summary-only]: Send summary only ignoring specific route.
[as-set]: Show AS on the path in list, each AS is shown once.
Default:
No aggregate configuration.
Command Mode:
BGP route mode, VRF address family mode
Usage Guide:
Address aggregation reduces spreading routing messages outside. Use summary-only option so to
spread aggregate route to the neighbors without spreading specific route. as-set option will list AS
from each route covered by the aggregation only once without repeat.
Example:
Switch(config-router)#aggregate-address 100.1.0.0/16 summary-only
Switch(config-router)#aggregate-address 100.2.0.0/16 summary-only as-set
Switch(config-router)#aggregate-address 100.3.0.0/16 as-set
Related Command:
bgp aggregate-nexthop-check, no bgp aggregate-nexthop-check