[dev] BFD daemon is now part of master

Donald Sharp sharpd at cumulusnetworks.com
Tue Aug 14 08:58:34 EDT 2018


Rafael -

Thanks for doing this work and driving this effort.  I know a whole
bunch of people have been asking for this integration into FRR.

donald

On Tue, Aug 14, 2018 at 8:50 AM, Rafael Zalamena
<rzalamena at opensourcerouting.org> wrote:
> Hi all,
>
> Today the BFD daemon (`bfdd`) got merged into master. It implements
> the Bidirectional Forwarding Detection protocol and its main purpose
> is to detect link failures to notify services. The daemon is
> automatically built on standard distribution on all platforms.
>
> Currently the following FRR daemons support BFD:
>
> * bgpd;
> * ospfd;
> * ospf6d;
> * pimd;
>
> ---
>
> Background:
>
> The BFD daemon was implemented re-using some Cumulus implementation,
> but it was extracted from another service (
> https://github.com/CumulusNetworks/ptm/blob/master/src/ptm_bfd.c ).
> The code went through the following changes:
>
> * it became a stand alone daemon;
> * added new configuration interfaces: vtysh and control socket (using JSON);
> * replaced uthash.h with FRR's hash implementation;
> * added compatibility code to run on *BSDs;
> * changed event manager with FRR's;
> * minor code/protocol fixes;
>
> Related RFCs:
>
> * RFC 5880 (protocol description);
> * RFC 5881 (single hop IPv4/IPv6 implementation);
> * RFC 5883 (multi hop implementation);
>
> Thanks to everyone that helped reviewing the code!
>
> Rafael
>
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