address-family ipv4 flowspec

Enables Border Gateway Protocol flow specification (BGP flowspec) IPv4 address family.

Syntax

address-family ipv4 flowspec [ vrf vrf-name ]

no address-family ipv4 flowspec [ vrf vrf-name ]

Command Default

BGP flowspec IPv4 address family is disabled.

Parameters

vrf vrf-name: Specifies the name of a VRF instance in which the BGP flowspec IPv4 address family is to be configured.

Modes

BGP configuration mode

Usage Guidelines

BGP flowspec IPv4 address-family configuration is only allowed in a VRF that is already configured with an IPv4 unicast address family.

When the vrf option is not specified, the address-family ipv4 flowspec command enables the BGP flowspec IPv4 address family for the default VRF; the IPv4 unicast address family is always configured on the default VRF.

The no form of the command disables BGP flowspec IPv4 address family.

You must disable BGP flowspec in a VRF by using the no address-family ipv4 flowspec command before removing the IPv4 unicast address-family configuration from the VRF.

Examples

The following example shows how to enable BGP flowspec address family in the default VRF.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv4 flowspec  
device(config-bgp-ipv4fs)#

The following example shows how to enable BGP flowspec address family in a VRF named red.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv4 flowspec vrf red
device(config-bgp-ipv4fs-vrf)#