для Cisco Cisco IOS Software Release 12.2(25)S

This section contains the following tasks: 

In Cisco IOS software, a BGP routing process can advertise routes that are not installed in the RIB to 
BGP peers by default. A route that is not installed into the RIB is an inactive route. Inactive route 
advertisement can occur, for example, when routes are advertised through common route aggregation. 

Entering the bgp suppress-inactive command configures BGP to not advertise inactive routes to any 
BGP peer. The no form of this command is used to enable inactive route advertisement. 

Inactive route advertisements can be suppressed to provide more consistent data forwarding. This feature 
can be configured on a per IPv4 address family basis. For example, when configuring maximum number 
of routes that can be configured in a VRF with the 

 global configuration command, you 

also suppress inactive route advertisement to prevent inactive routes from being accepted into the VRF 
after route limit has been exceeded. 

This document assumes that BGP is enabled and peering has been established. 

Inactive route suppression can be configured only under the IPv4 address family or under a default IPv4 
general session. 

router bgp as-number 

address-family {ipv4 [multicast | unicast [vrf vrf-name] | vrf vrf-name] | ipv6 [multicast | 
unicast] | vpnv4 [unicast]}

bgp suppress-inactive