Re: BFD over OSPF & NSF/SSO Catalyst 6500

Hi David,

If i remove the "ip ospf bfd" on the interface, the bfd adjacency not
stablishes in any form (you do a show bfd neighbor and you can not see any
output)... and if i remove the "bfd all-interfaces" in router mode
(mantaining the ip ospf bfd on interfaces, when you do a "sh ip ospf" you
can not see the output "bfd is enabled" (in this case you can see the bfd
session is in AdminDown too)

Regards

Juan

2011/10/4 David Prall <dcp_at_dcptech.com>

> What happens if you remove "ip ospf bfd" from the interface configuration.
> You have already told it to run on all interfaces that have BFD configured.
> I've never needed it on an individual interface.
>
> David
>
> --
> http://dcp.dcptech.com
>
>
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > JuanF
> > Sent: Monday, October 03, 2011 4:17 PM
> > To: ccielab_at_groupstudy.com
> > Subject: 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.
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
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> >
> >
> >
>
>
>

-- 
Juan Faure
Blogs and organic groups at http://www.ccie.net