BFD on etherchannel running OSPF

[maliha_fayyaz]

we have  'WS-C6509-E' in core (VSS) connected through fiber and running OSPF on ether channel . I want to configure BFD but the option is not available under the interface port channel command. It is available under a single interface and ospf routing process command. The version running on switches are  Cisco IOS Software, s2t54 Software (s2t54-ADVIPSERVICESK9-M), Version 15.0(1)  RELEASE SOFTWARE (fc4).

Any suggestions why bfd option not available under ether channel interface

[Pawan Raut]

Port-channel configuration limitations are as follows: For Layer 3 port channels used by BFD, you must enable Link Aggregation Control Protocol (LACP) on the port channel. For Layer 2 port channels used by SVI sessions, you must enable LACP on the port channel. BFD is supported on SVI interfaces that are formed over virtual port channels (vPCs), vPC peer-links and FabricPath links.

[maliha_fayyaz]

On layer 2 port channel that is configured with LACP still bfd option not available

CSW#sh etherchannel summary
Flags:  D - down        P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3      S - Layer2
        U - in use      N - not in use, no aggregation
        f - failed to allocate aggregator

        M - not in use, no aggregation due to minimum links not met
        m - not in use, port not aggregated due to minimum links not met
        u - unsuitable for bundling
        d - default port

        w - waiting to be aggregated
Number of channel-groups in use: 7
Number of aggregators:           7

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(RU)          -        Te1/5/4(P)     Te1/5/5(P)
2      Po2(RU)          -        Te2/5/4(P)     Te2/5/5(P)
11     Po11(RU)         -        Gi1/9/24(P)    Gi2/9/24(P)
12     Po12(SU)        PAgP      Te1/7/4(P)     Te2/7/4(P)
100    Po100(SU)       LACP      Te1/8/7(P)     Te1/8/8(P)     Te2/8/7(P)
                                 Te2/8/8(P)
111    Po111(SU)       LACP      Te1/8/4(P)     Te1/8/5(P)     Te2/8/4(P)
                                 Te2/8/5(P)
160    Po160(SD)        -        Gi1/1/3(D)     Gi2/1/3(D)

CSW#sh run inter
CSW#sh run interface port-chan
CSW#sh run interface port-channel 100
Building configuration...

Current configuration : 140 bytes
!
interface Port-channel100
 description vPC_Trunk_to_Nexus_5596
 switchport
 switchport trunk native vlan 4090
 switchport mode trunk
end

KW.SKH.1.06.A08.CSW.1.SLAN#config t
Enter configuration commands, one per line.  End with CNTL/Z.
CSW.(config)#inter
CSW.(config)#interface port-chan
CSW.(config)#interface port-channel 100
CSW.(config-if)#bfd ?
% Unrecognized command
CSW.(config-if)#bfd