Date: Wed, 23 Oct 2002 15:18:13 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: Marko Zec <zec@tel.fer.hr> Cc: "J. 'LoneWolf' Mattsson" <lonewolf-freebsd@earthmagic.org>, freebsd-net@freebsd.org Subject: Re: RFC: BSD network stack virtualization Message-ID: <Pine.BSF.4.21.0210231503010.36940-100000@InterJet.elischer.org> In-Reply-To: <3DAE98B4.4058023A@tel.fer.hr>
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I'm very impressed. I do however have some questions.
(I have not read the code yet, just the writeup)
1/ How do you cope with each machine expecting to have it's own loopback
interface? Is it sufficient to make lo1 lo2 lo3 etc. and attache them
to the appropriate VMs?
2/ How much would be gained (i.e. is it worth it) to combine this with
jail? Can you combine them? (does it work?) Does it make sense?
3/ You implemented this in 4.x which means that we need to reimplement
it in -current before it has any chance of being 'included'. Do you
think that would be abig problem?
5/ Does inclusion of the virtualisation have any measurable effect on
throughputs for systems that are NOT using virtualisation. In other
words, does the non Virtualised code-path get much extra work? (doi you
have numbers?) (i.e. does it cost much for the OTHER users if we
incorporated this into FreeBSD?)
6/ I think that your ng_dummy node is cute..
can I commit it separatly? (after porting it to -current..)
7/ the vmware image is a great idea.
8/ can you elaborate on the following:
* hiding of "foreign" filesystem mounts within chrooted virtual images
9/ how does VIPA differ from the JAIL address binding?
10/ could you use ng_eiface instead of if_ve?
11/ why was ng_bridge unsuitable for your use?
12/ can you elaborate on the following:
# fix netgraph interface node naming
# fix the bugs in base networking code (statistics in
"native" bridging, additional logic for ng_bridge...)
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