[Debconf-team] DC12 network (was Re: DebConf12 final report)
Philipp Kern <pkern@debian.org> writes:
> On Tue, Jan 29, 2013 at 12:49:28PM -0500, Daniel Kahn Gillmor wrote:
>> > I can fill in this information if you think it's relevant.
>> yes, i do think that's relevant. i'd like other people to know what
>> worked for us. (and i'd like to be able to refer to it in the future
>> myself)
>
> If that's about the network I wasn't entirely happy with the wi-fi last
> year. ;-)
Do you have any specific points you were not happy with. I think it
worked much better than the DC11 wifi network and I don't remember any
major problems.
The major problems I remember were with the DHCP server (initially too
short lease time which lead to a flood of DHCP requests and disk io
(fsync) starvation on the server) and the media converters.
>
> (And core switches should have STP configured, or better some more rapid
> anti-loop protocol.)
In the one incident where someone created a loop as far as I remember
only the branch with the loop was shut down. While debugging the the
problem we were initially mislead by unrelated kernel messages on homer
I think.
Gaudenz
>
>> >> 1) who provided the IPv6 tunnelling?
>> > It was setup by Philip Kern with a tunnel. Don't remember which tunnel
>> > provider he used.
>> Philipp, can you answer this?
>
> I set up a free tunnel to Hurricane Electric (tunnelbroker.net)'s Miami
> PoP. I didn't hear complaints. network-manager wasn't yet capable of
> DHCPv6 and/or RDNSS/DNSSL. Hence it was mainly a big /64 subnet on the
> one attendee VLAN, nothing on the video VLAN, used for outgoing IPv6
> connectivity. Maybe the mirror had IPv6 listed additionally in DNS, but
> I don't think there were more internal services on IPv6 (like DNS).
>
>> > We had all wireless access points on the same layer 2 net. Only the
>> > video team was on a separate VLAN.
>> Thanks, i've updated network.tex to reflect this.
>
> I guess I cannot go look and check. ;-)
>
> Kind regards
> Philipp Kern
--
Ever tried. Ever failed. No matter.
Try again. Fail again. Fail better.
~ Samuel Beckett ~
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