ipv6 route static bfd

Configures Bidirectional Forwarding Detection (BFD) session parameters for IPv6 static routes.

Syntax

ipv6 route static bfd dest-ipv6-address source-ipv6-address [ interface-type interface-name ] [ interval transmit-time min-rx receive-time multiplier number ]

no ipv6 route static bfd dest-ipv6-address source-ipv6-address

Command Default

By default, BFD is not configured for an IPv6 static route.

Parameters

dest-ipv6-address: Specifies the IPv6 address of BFD neighbor.
source-ipv6-address: Specifies the source IPv6 address.
interface-type: The type of interface, such as Ethernet or Ve.
interface-name: The interface number or VLAN ID.
intervaltransmit-time: Specifies the interval, in milliseconds, a device waits to send a control packet to BFD peers. Valid values range from 50 through 30000. The default is 300 milliseconds.
min-rx receive-time: Specifies the interval, in milliseconds, a device waits to receive a control packet from BFD peers. Valid values range from 50 through 30000. The default is 300 milliseconds.
multiplier number: Specifies the number of consecutive BFD control packets that must be missed from a BFD peer before BFD determines that the connection to that peer is not operational. Valid values range from 3 through 50. The default is 3.

Modes

Global configuration mode

Address-family IPv6 unicast VRF configuration mode

Usage Guidelines

Use the no form of this command to remove the configured BFD IPv6 static route.

The transmit-time and receive-time variables are the intervals needed by the local device. The actual values in use will be the negotiated values.

For single-hop static BFD sessions, the interval value is taken from the outgoing interface. For multi-hop BFD sessions, if the configured interval and min-rx parameters conflict with those of an existing session, the lower values are used.

For IPv6 static BFD sessions, if the BFD neighbor is link-local, the source IPv6 address must also be link-local.

If an IPv6 BFD session is running for a link-local BFD neighbor, the interface-type interface-name parameters are mandatory because the link-local address can be the same on multiple interfaces.

Examples

This example configures a BFD session on an IPv6 static route, specifying a VE interface.

device# configure terminal
device(config)# ipv6 route static bfd fe80::a fe80::b ve 20 interval 100 min-rx 100 multiplier 10

This example configures a BFD session on an IPv6 static route in a non-default VRF instance.

device# configure terminal
device(config)# vrf orange
device(config-vrf-orange)# address-family ipv6 unicast
device(vrf-ipv6-unicast)# ipv6 route static bfd fe70::a fe60::b ve 10 interval 1000 min-rx 2000 multiplier 20