Your software release
may not support all the features documented in this module. For the latest
caveats and feature information, see
Bug Search Tool and the
release notes for your platform and software release. To find information about
the features documented in this module, and to see a list of the releases in
which each feature is supported, see the feature information table.
Use Cisco Feature
Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to
An account on Cisco.com is not required.
Information About OSPFv3 for BFD
The Bidirectional Forwarding Detection (BFD) protocol supports Open Shortest Path First version 3 (OSPFv3).
This section describes the procedures for configuring BFD support for OSPFv3, so that OSPFv3 is a registered protocol with BFD and will receive forwarding path detection failure messages from BFD. You can either configure BFD support for OSPFv3 globally on all interfaces or configure it selectively on one or more interfaces.
There are two methods for enabling BFD support for OSPFv3:
You can enable BFD for all of the interfaces for which OSPFv3 is routing by using the
bfdall-interfaces command in router configuration mode. You can disable BFD support on individual interfaces using the
ipv6ospfbfddisable command in interface configuration mode.
You can enable BFD for a subset of the interfaces for which OSPFv3 is routing by using the
ipv6ospfbfd command in interface configuration mode.
OSPF will only initiate BFD sessions for OSPF neighbors that are in the FULL state.
(Optional) Displays a line-by-line listing of existing BFD adjacencies.
showipv6ospf [process-id] [area-id] [rate-limit]
Device# show ipv6 ospf
(Optional) Displays general information about OSPFv3 routing processes.
Configuring OSPF Support
for BFD over IPv4 for One or More Interfaces
To configure BFD
on one or more OSPF interfaces, perform the steps in this section.
Command or Action
privileged EXEC mode.
your password if prompted.
Device# configure terminal
Device(config)# interface fastethernet 6/0
interface configuration mode.
Device(config-if)# ip ospf bfd
disables BFD on a per-interface basis for one or more interfaces associated
with the OSPF routing process.
keyword only if you enable BFD on all of the interfaces that OSPF is associated
with using the
bfdall-interfaces command in router configuration
interface configuration mode and returns the device to privileged EXEC mode.
Device# show bfd neighbors details
Displays information that can help verify if the BFD neighbor is active and
displays the routing protocols that BFD has registered.
hardware-offloaded BFD sessions are configured with Tx and Rx intervals that
are not multiples of 50 ms, the hardware intervals are changed. However, output
showbfdneighborsdetails command displays only the configured
intervals, not the interval values that change.
Device# show ip ospf
Displays information that can help verify if BFD support for OSPF has been
Retrieving BFDv6 Information for Monitoring and Troubleshooting
Example: Displaying OSPF Interface Information about BFD
The following display shows that the OSPF interface is enabled for BFD:
Device# show ipv6 ospf interface
Serial10/0 is up, line protocol is up
Link Local Address FE80::A8BB:CCFF:FE00:6500, Interface ID 42
Area 1, Process ID 1, Instance ID 0, Router ID 10.0.0.1
Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT, BFD enabled
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:07
Index 1/1/1, flood queue length 0
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 10.1.0.1
Suppress hello for 0 neighbor(s)
IPv6 addressing and connectivity
Cisco IOS IPv6 Configuration Guide
Cisco IOS commands
Cisco IOS Master Commands List, All Releases
Cisco IOS IPv6 Command Reference
Cisco IOS IPv6 features
Cisco IOS IPv6 Feature Mapping
OSPFv3 for BFD
“Bidirectional Forwarding Detection” module
Standards and RFCs
RFCs for IPv6
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to
www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 1 Feature Information for OSPFv3 for BFD
OSPFv3 for BFD
BFD supports the dynamic routing protocol OSPFv3.
The following commands were introduced or modified:
ipv6 router ospf,
show bfd neighbors,
show ipv6 ospf,
show ipv6 ospf interface,
show ospfv3 interface.