[j-nsp] IPv4 BFD flaps on MX204

[Mark Tinka]

I'd recommend disabling IPv6 BFD for now as well. It's not handled in
hardware, and so if it drops, you would lose your IGP. Worse if you run
multiple address families in your IGP, e.g., IS-IS, or IPv4 over OSPFv3 .

Hardware support for BFDv6 is coming in 1H'21.

Mark.

On 18/Aug/20 13:01, Mihai wrote:
> Hi Ivan,
>
> Indeed, that was the issue, thanks!
>
> Regards
>
> On 18/08/2020 09:54, Ivan Malyarchuk wrote:
>> If you have many uncontrolled directly connected L2 domains like
>> IX-es or customers, check policer __default_arp_policer__.
>> If there are drops, you need to apply interface-specific arp policers
>> to interfaces with protocols and/or to source of arp bursts.
>>
>>
>>
>> 18.08.2020 02:35, Mihai пишет:
>>> Hi,
>>>
>>> I have a MX204 with a couple of OSPF/OSPFv3 adj to other MXs over
>>> two et- interfaces, BFD enabled for both protocols.
>>> At random intervals the IPv4 BFD sessions are flapping with or
>>> without the 'no-delegate-processing' option, however the IPv6
>>> sessions are stable (they are using the same timers).
>>>
>>> Did anyone experienced something like this? The router is running
>>> 18.2R3-S3.
>>>
>>>
>>> Thanks!
>>> _______________________________________________
>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>
>
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp