BFD over OSPF & NSF/SSO Catalyst 6500

Hi all,

I am trying to enable BFD over OSPF between 2 catalyst 6509 switches, but i can
not see clearly why the bfd session is always on AdminDown state:

My hw:

2 x catalyst6509-E, with dual Sup720-10G +DFC +MSFC3. Ospf interfaces running
BFD are on 6748 line card + CFC. I am using NSF/SSO config, extended to OSPF
process.

My sw: IOS 12.2.33SXI4 avdipservices

My configs (on each router)

------ROUTER_1------------

interface GigabitEthernet3/4
 description CONEXION_1
 ip address 10.20.254.17 255.255.255.248
 no ip redirects
 no ip proxy-arp
 ip pim sparse-dense-mode
 ip ospf bfd
 bfd interval 50 min_rx 50 multiplier 5

....
router ospf 1
 router-id 10.20.60.129
 log-adjacency-changes
 auto-cost reference-bandwidth 10000
 nsf
 area 2 nssa default-information-originate no-summary
 summary-address 10.20.48.0 255.255.240.0
 summary-address 10.20.64.0 255.255.240.0
 redistribute connected metric-type 1 subnets
 redistribute static metric-type 1 subnets
 network 10.20.60.129 0.0.0.0 area 0
 network 10.20.60.128 0.0.0.127 area 0
 network 10.20.83.92 0.0.0.0 area 2
 network 10.20.83.124 0.0.0.0 area 2
 network 10.20.254.6 0.0.0.0 area 0
 network 10.20.254.9 0.0.0.0 area 0
 network 10.20.254.16 0.0.0.7 area 0
 network 10.20.254.33 0.0.0.0 area 0
 network 10.20.254.100 0.0.0.0 area 0
 network 10.20.254.109 0.0.0.0 area 0
 bfd all-interfaces
...

-----------ROUTER2------------

....

interface GigabitEthernet1/4
 description CONEXION_1
 ip address 10.20.254.18 255.255.255.248
 no ip redirects
 no ip proxy-arp
 ip pim sparse-dense-mode
 load-interval 30
 ip ospf bfd
 bfd interval 50 min_rx 50 multiplier 5

----
router ospf 1
 router-id 10.20.29.131
 log-adjacency-changes detail
 auto-cost reference-bandwidth 10000
 nsf
 area 1 nssa default-information-originate no-summary
 summary-address 10.20.16.0 255.255.240.0
 redistribute connected subnets
 redistribute static metric-type 1 subnets
 network 10.20.29.92 0.0.0.0 area 1
 network 10.20.29.124 0.0.0.0 area 1
 network 10.20.29.131 0.0.0.0 area 0
 network 10.20.254.5 0.0.0.0 area 0
 network 10.20.254.16 0.0.0.7 area 0
 network 10.20.254.25 0.0.0.0 area 0
 network 10.20.254.49 0.0.0.0 area 0
 network 10.20.254.100 0.0.0.0 area 0
 network 10.20.254.105 0.0.0.0 area 0
 bfd all-interfaces
The OSPF adjacency becomes FULL on the ospf interface BFD is configured, but
BFD is always "AdminDown". If you display the "show bfd nei det", you can see
that each end sends BFD control packets, but no receives (it is strange, i do
not have any type of filter or similar)
Looking at the BFD 6500s restrictions exposed at:
http://www.cisco.com/en/US/docs/ios/iproute_bfd/configuration/guide/irb_bfd_ps6441_TSD_Products_Configuration_Guide_Chapter.html
, i am not sure if BFD not stablish because i have CFC on the line cards...
Anyone can help ?
TIA & Best Regards.
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