[FROG] OSPF Hello Interval on dead Links

[Donald Sharp]

I don't see this behavior at all, when I tested this locally.  Can you show
us this behavior w/ tcpdump?  Also please turn on `debug ospf ism` `debug
ospf packet hello` and `debug ospf nsm` and give us the output.

donald

On Thu, May 23, 2024 at 1:35 AM Susanne Will <will.susanne at net-24.at> wrote:

> ­Hi FRR Users,
>
> i use FRR on Debian ­for routing between different Wireguard conections.
> If the conections are all up, everything works out great. I set hello
> interval to one second and there is a hello paket every second on each
> Wireguard interface. But if a Wireguard conection breaks down because of
> network outage, hello pakets are sent only five times (i think due to my
> dead interval of 5 seconds) but after that a hello paket is only sent every
> minute. So when the Wireguard conection is reestablished, it takes up to
> one minute, until OSPF recognises the comeback of the link and routing
> informations are updated.
> Why are hello pakets sent only every minute on broken links, but every
> second (as expected due to my config) on working links?
>
> Debian Version Bookworm
> FFR Version 8.4.4 installed from Debian apt repo
>
> Thanks for your help,
>
> Susanne _______________________________________________
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> frog at lists.frrouting.org
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>
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