Date: Mon, 4 Dec 2017 14:41:45 +0100 From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@freebsd.org> To: yar <yaroslav@shvets.name> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Bidirectional Forwarding Detection Message-ID: <CA%2Bq%2BTcqx6z0L=zP-nMtSPjc9rwA5YPh6RuciDz4-aTFpjjGk1A@mail.gmail.com> In-Reply-To: <alpine.BSF.2.20.1712041448410.82959@tj1.negpncvgny.hn> References: <alpine.BSF.2.20.1712041448410.82959@tj1.negpncvgny.hn>
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On Mon, Dec 4, 2017 at 1:53 PM, yar <yaroslav@shvets.name> wrote: > Hello All. > > Does FreeBSD support BFD (Bidirectional Forwarding Detection)? > rfc5880, rfc5881 =E2=80=8BHi, BFD is supported (ie: not filtered) by FreeBSD: you just need to use a BFD daemon software. If your question was "Does FreeBSD includes a BFD daemon into base?", the answer is no. Main usage of BFD is to detect network failure between routing peers and give this information to the routing protocol=E2=80=8B. As example, once an OSPF process detect new neighbours, it will sent their IP addresses to the BFD process: Once received, the BFD process will monitor the reachability of these neighbours and will communicate back to the OSPF process if they are not reachable. But I'm not aware of a standard way for an "independent" bfd daemon to communicate between all the routing softwares (bird, FRR, quagga, etc.): This is why they includes their own BFD daemon (like bird). Regards, Olivier
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