Recommended mpls ldp igp sync holddown timer for OSPF interface with BFD

[egilles123]

I have several point to point links running LDP and OSPF. I was curious what would be a recommended mpls ldp igp sync holddown timer to configure on these links. I know its a best practice to have on there in case there's a convergence issue. What's confusing is that I have BFD also configured. Here is my config below

router ospf 1
bfd all-interfaces
mpls ldp sync
mpls ldp autoconfig

interface TenGigabitEthernet0/0/1
ip address x.x.x.x
ip ospf network point-to-point
ip ospf 1 area 0
bfd interval 50 min_rx 50 multiplier 3

[Reza Sharifi]

Hi,

Have a look at this docuent.  The vlaue is set to 2000 here and seems to work as expected.

https://sites.google.com/site/amitsciscozone/home/important-tips/mpls-wiki/ldp-igp-synchronization

HTH

[egilles123]

Thanks. Buy how does having BFD affect this. Should the holdout time be more strict because BFD is also configured..

[Reza Sharifi]

You would need to do some testing with the values, as BFD usually converge faster than any protocol. So, you may want to try different valuses, test and go from there.

HTH