Date: Sun, 26 Nov 2023 23:48:47 +0100 From: Vincenzo Maffione <vmaffione@freebsd.org> To: Benoit Chesneau <benoitc@enki-multimedia.eu> Cc: "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org> Subject: Re: how to cross-connect 2 interfaces Message-ID: <CA%2B_eA9hcKHNi%2Bsg56vaA=hW5SK%2BfuDNRETf=ZaVtcQYSoJxNJg@mail.gmail.com> In-Reply-To: <N1rH7s4QTvo2LOvnjsVE7xwv2tGxUgyCK3727yVKdFQrGCKn4D-ZpF2eHqGJYVxQfG6E5mv3zEgdlTWIlhAY71id_tG763vNME1-rIgj6PM=@enki-multimedia.eu> References: <dzyrey2PbKgO4MIYWufu_gLvfHdHPjheBkY44c_uqmcWzw8bRuncCsFpYMhBEF_wRh0ybgStoD19E13OMLBml2AY9dJ5J0a1yYRBka-dDKw=@enki-multimedia.eu> <F23A1465-9126-46EA-88B1-9D953223CAB6@netgate.com> <wQNVeghU7CYikP3o8ybvMYvCejYImX5JdyokER7JQe_Iu27TjyshUXlWrZtViylujg-qjv3sd-dp326_BIP-HV-iAFdwveuUFMyH1Y7_N9o=@enki-multimedia.eu> <CA%2B_eA9hA=nxeX3ZCFS5DQoDpR5V=qXTdA2u17x%2BtuNNROJipqQ@mail.gmail.com> <N1rH7s4QTvo2LOvnjsVE7xwv2tGxUgyCK3727yVKdFQrGCKn4D-ZpF2eHqGJYVxQfG6E5mv3zEgdlTWIlhAY71id_tG763vNME1-rIgj6PM=@enki-multimedia.eu>
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--000000000000c696cd060b15fd9f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I've never tried with vxlan interfaces... But in principle it should work (emulated netmap mode enables netmap on any interface at reduced performance). However, in your case a good deal of packet processing already happens within the kernel (vxlan encapsulation) so I would definitely go for a kernel approach such as netgraph. Vincenzo On Sun, Nov 26, 2023, 10:36 PM Benoit Chesneau <benoitc@enki-multimedia.eu> wrote: > Thanks! I guess though it will only work for HW interfaces, not with vxla= n > interfaces? > > Beno=C3=AEt > On Sunday, November 26th, 2023 at 21:43, Vincenzo Maffione < > vmaffione@freebsd.org> wrote: > > Or, the netmap(4) bridge example > > On Sun, Nov 26, 2023, 12:40 PM Benoit Chesneau <benoitc@enki-multimedia.e= u> > wrote: > >> thanks, I didn't noticed this one. >> >> Beno=C3=AEt Chesneau, Enki Multimedia >> =E2=80=94 >> t. +33608655490 >> >> Sent with Proton Mail <https://proton.me/>; secure email. >> >> On Saturday, November 25th, 2023 at 23:30, Jim Thompson <jim@netgate.com= > >> wrote: >> >> ng_hub(4) >> >> On Nov 25, 2023, at 8:34=E2=80=AFAM, Benoit Chesneau <benoitc@enki-multi= media.eu> >> wrote: >> >> =EF=BB=BF >> Is there a way to cross-connect 2 interfaces without using a bridge . >> Something similar to the command =CB=8Bl2 xconnect` in vpp (or cisco) : >> https://docs.fd.io/vpp/16.12/vnet_vnet_l2.html >> <https://www.google.com/url?q=3Dhttps%3A%2F%2Fdocs.fd.io%2Fvpp%2F16.12%2= Fvnet_vnet_l2.html&ust=3D1701531263000000&usg=3DAOvVaw3gotHKi-LVQOb_H5p6W-4= d> >> This could be quite handy to create a patch between diffrent machines in >> the network. >> >> Beno=C3=AEt >> >> >> > --000000000000c696cd060b15fd9f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto"><div>I've never tried with vxlan interfaces... But in= principle it should work (emulated netmap mode enables netmap on any inter= face at reduced performance).</div><div dir=3D"auto">However, in your case = a good deal of packet processing already happens within the kernel (vxlan e= ncapsulation) so I would definitely go for a kernel approach such as netgra= ph.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Vincenzo<br><br><div= class=3D"gmail_quote" dir=3D"auto"><div dir=3D"ltr" class=3D"gmail_attr">O= n Sun, Nov 26, 2023, 10:36 PM Benoit Chesneau <<a href=3D"mailto:benoitc= @enki-multimedia.eu">benoitc@enki-multimedia.eu</a>> wrote:<br></div><bl= ockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #= ccc solid;padding-left:1ex"><div style=3D"font-family:Arial,sans-serif;font= -size:14px">Thanks! I guess though it will only work for HW interfaces, not= with vxlan interfaces?</div><div style=3D"font-family:Arial,sans-serif;fon= t-size:14px"><br></div> <div style=3D"font-family:Arial,sans-serif;font-size:14px"> <div> <div style=3D"font-style:normal;font-weight:normal;letter-spacing:n= ormal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0= px;text-decoration:none;font-family:Helvetica;font-size:12px;color:rgb(0,0,= 0)">Beno=C3=AEt</div></div></div><div> On Sunday, November 26th, 2023 at 21:43, Vincenzo Maffione <<a h= ref=3D"mailto:vmaffione@freebsd.org" target=3D"_blank" rel=3D"noreferrer">v= maffione@freebsd.org</a>> wrote:<br><br> <blockquote type=3D"cite"> <div dir=3D"auto">Or, the netmap(4) bridge example</div><br><di= v class=3D"gmail_quote"><div class=3D"gmail_attr" dir=3D"ltr">On Sun, Nov 2= 6, 2023, 12:40 PM Benoit Chesneau <<a href=3D"mailto:benoitc@enki-multim= edia.eu" rel=3D"noreferrer nofollow noopener noreferrer" target=3D"_blank">= benoitc@enki-multimedia.eu</a>> wrote:<br></div><blockquote style=3D"mar= gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" class=3D"gmail_= quote"><div style=3D"font-family:Arial,sans-serif;font-size:14px">thanks, I= didn't noticed this one.</div><div style=3D"font-family:Arial,sans-ser= if;font-size:14px"><br></div> <div style=3D"font-family:Arial,sans-serif;font-size:14px"> <div> <div style=3D"font-style:normal;font-weight:normal;letter-spacing:n= ormal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0= px;text-decoration:none;font-family:Helvetica;font-size:12px;color:rgb(0,0,= 0)">Beno=C3=AEt Chesneau, Enki Multimedia<br></div><div style=3D"font-style= :normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-trans= form:none;white-space:normal;word-spacing:0px;text-decoration:none;font-fam= ily:Helvetica;font-size:12px;color:rgb(0,0,0)">=E2=80=94<br></div><div styl= e=3D"font-style:normal;font-weight:normal;letter-spacing:normal;text-indent= :0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoratio= n:none;font-family:Helvetica;font-size:12px;color:rgb(0,0,0)">t. +336086554= 90 <br></div> </div> <div style=3D"font-family:Arial,sans-serif;font-size:14px"><br></div> <div> Sent with <a rel=3D"noreferrer nofollow noopener noreferrer" href= =3D"https://proton.me/" target=3D"_blank">Proton Mail</a> secure email. </div> </div> <div style=3D"font-family:Arial,sans-serif;font-size:14px"><br></div><div> On Saturday, November 25th, 2023 at 23:30, Jim Thompson <<a rel= =3D"noreferrer nofollow noopener noreferrer" href=3D"mailto:jim@netgate.com= " target=3D"_blank">jim@netgate.com</a>> wrote:<br><br> <blockquote type=3D"cite"> <div dir=3D"ltr"></div><div dir=3D"ltr">ng_hub(4)</div><div dir= =3D"ltr"><br><blockquote type=3D"cite">On Nov 25, 2023, at 8:34=E2=80=AFAM,= Benoit Chesneau <<a rel=3D"noreferrer nofollow noopener noreferrer" hre= f=3D"mailto:benoitc@enki-multimedia.eu" target=3D"_blank">benoitc@enki-mult= imedia.eu</a>> wrote:<br><br></blockquote></div><blockquote type=3D"cite= "><div dir=3D"ltr">=EF=BB=BF <div dir=3D"auto">Is there a way to cross-conn= ect 2 interfaces without using a bridge . Something similar to the command = =CB=8Bl2 xconnect` in vpp (or cisco) :</div><div dir=3D"auto"><a rel=3D"nor= eferrer nofollow noopener noreferrer" href=3D"https://www.google.com/url?q= =3Dhttps%3A%2F%2Fdocs.fd.io%2Fvpp%2F16.12%2Fvnet_vnet_l2.html&ust=3D170= 1531263000000&usg=3DAOvVaw3gotHKi-LVQOb_H5p6W-4d" dir=3D"auto" target= =3D"_blank">https://docs.fd.io/vpp/16.12/vnet_vnet_l2.html</a></div><div di= r=3D"auto">This could be quite handy to create a patch between diffrent mac= hines in the network.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Be= no=C3=AEt</div></div></blockquote> </blockquote><br> </div></blockquote></div> </blockquote><br> </div></blockquote></div></div></div> --000000000000c696cd060b15fd9f--
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