Date: Sat, 6 Jan 2018 17:30:49 +0100 From: Marko Zec <zec@fer.hr> To: John Lyon <johnllyon@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Need Netgraph Help [fixed] Message-ID: <20180106173049.48e1f044@x23> In-Reply-To: <47C0E33A-E815-4860-A25C-F29BBB8D6787@gmail.com> References: <CAKfTJoUMxo7gsio7JJD8Vj_xPgFx5YEBH3_XViFhR0dt59==Dw@mail.gmail.com> <5A3225BF.6020205@omnilan.de> <CAKfTJoX78JhqsvB669Gxsr5UtZkbwuZrnVhOdU2UMacF7FmP1g@mail.gmail.com> <5A32F63E.8010205@grosbein.net> <5A338C5A.20300@omnilan.de> <CAKfTJoW5H82VLyBZ_5_sa9HU7Xbot7imeiP-ogVCNkHGe0_30Q@mail.gmail.com> <2e0525c8-2251-a5f5-45d1-fe44ebe318f7@freebsd.org> <CAKfTJoXe%2BZjDEMbF12-JcwBAs0uQoAFYAC3g1A_d0yM8by-z6g@mail.gmail.com> <ac0e236e-f27c-d4ed-8527-010dd025efff@freebsd.org> <4fee4ea6-9b35-afba-6d5d-24ecca3e28c6@freebsd.org> <CAKfTJoUuxKKkZEo5%2Bnv98jqk3T2D77-CS-rdqvVUQE%2BczHpzrw@mail.gmail.com> <3b8d46da-75e3-79f2-379c-b27a88e80733@freebsd.org> <CAKfTJoXdqm0Bj%2B85omHg6oiKhqDNkxfW5rs9nxsqH79qdCd9Gw@mail.gmail.com> <47C0E33A-E815-4860-A25C-F29BBB8D6787@gmail.com>
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On Sat, 6 Jan 2018 08:22:25 -0500 John Lyon <johnllyon@gmail.com> wrote: > I just woke up with a follow-up question that may be my aha moment. > Are Netgraph edges between nodes always bidirectional? I have been > treating all of the edges as unidirectional, requiring me to create > two separate Netgraphs. But if they are bidirectional, that would > explain some things. edges -> hooks in netgraph parlance man 4 netgraph -> /Hooks -> "Data flows bidirectionally between nodes" A lot of people arrive at BSD / netgraph with previous experiences with the Click modular router, which might have caused the confusion, since in Click all datapaths are always unidirectional. Not (necessarily) so in netgraph.
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