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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [no subject]* Over the years the terminology has changed a bit, a "switch" is (in 1980s/1990s terminology) a "multiport network bridge", and back then such devices were a) very very expensive, and b) had very few ports, and ... c) few people had a clue what they did (myself included back then). _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users ------=_Part_815769_704588223.1462792190375 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <html><head></head><body><div style=3D"color:#000; background-color:#fff; f= ont-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, = sans-serif;font-size:16px"><div dir=3D"ltr"><span>I'm a beginner and I gues= s it is a place for help.</span></div> <div class=3D"qtdSeparateBR"><br><br= ></div><div class=3D"yahoo_quoted" style=3D"display: block;"> <div style=3D= "font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grand= e, sans-serif; font-size: 16px;"> <div style=3D"font-family: HelveticaNeue,= Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16= px;"> <div dir=3D"ltr"><font size=3D"2" face=3D"Arial"> On Monday, May 9, 2= 016 11:41 AM, Simon Hobson <linux@xxxxxxxxxxxxxxxx> wrote:<br></font>= </div> <br><br> <div class=3D"y_msg_container">Just to add, since it seems= a common problem getting round some of the concepts ...<br clear=3D"none">= <br clear=3D"none">Just consider the network if the guest were not virtuali= sed, but a real machine, and the bridge were a real switch sat on your desk= top. You'd need a means of configuring the networking on the "guest" (eg st= atic config or DHCP), and a means of getting it's traffic to-from the outsi= de world (typically by means of a router).<br clear=3D"none"><br clear=3D"n= one">Now you are going to take those separate pieces of hardware and roll t= hem up into a virtualised setup. The switch turns into a virtual switch (a = bridge* in Linux networking terminology), the computer turns into a virtual= ised guest, and the router turns into ? At home I run a separate guest as a= two port router, but you can put it's functions into the Dom0 config.<br c= lear=3D"none"><br clear=3D"none">So from the PoV of the guest, it's just co= nnected to a network switch. Nothing magical changes, and it's IP config is= managed in just the same way as the real machine.<br clear=3D"none">From t= he PoV of the bridge, it's just a network switch with two devices connected= (Dom0 and the guest when doing routing/NAT in Dom0).<br clear=3D"none"><br= clear=3D"none"><br clear=3D"none">* Over the years the terminology has cha= nged a bit, a "switch" is (in 1980s/1990s terminology) a "multiport network= bridge", and back then such devices were a) very very expensive, and b) ha= d very few ports, and ... c) few people had a clue what they did (myself in= cluded back then).<div class=3D"yqt6646129083" id=3D"yqtfd31767"><br clear= =3D"none"><br clear=3D"none"><br clear=3D"none">___________________________= ____________________<br clear=3D"none">Xen-users mailing list<br clear=3D"n= one"><a shape=3D"rect" ymailto=3D"mailto:Xen-users@xxxxxxxxxxxxx"; href=3D"m= ailto:Xen-users@xxxxxxxxxxxxx">Xen-users@xxxxxxxxxxxxx</a><br clear=3D"none= "><a shape=3D"rect" href=3D"http://lists.xen.org/xen-users"; target=3D"_blan= k">http://lists.xen.org/xen-users</a></div><br><br></div> </div> </div> <= /div></div></body></html> ------=_Part_815769_704588223.1462792190375-- --===============3592772812753398868== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLXVzZXJz IG1haWxpbmcgbGlzdApYZW4tdXNlcnNAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tdXNlcnM= --===============3592772812753398868==--
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