Hi Chris,
On May 24, 2006, at 4:41 AM, Chris McHarg wrote:
This isn't strictly about Avahi, but I thought I'd give it a shot
here anyway...
I've been working with Avahi on linux machines and using Apple's ie
bonjour plugin (on winxp) to browse the published http services. I
noticed that each page access would take relatively long time to
return... around 3 secs.
Looking at the packet dump, it seems that windows issues NBNS
queries (NetBIOS) for the Avahi published .local hostname, and
spends a second or two waiting for replies.
The two ways I can think of to get around this is to either turn off
NetBios on the windows side, or maybe run nmbd on the linux side.
However, I think both options have problems... turning off NetBios
disables windows work group display, etc, and there'd have to be
some sort of system for passing the current published .local
hostname to nmbd.
Has anyone else got any ideas on this?
This is a known issue with the Bonjour mDNS resolver plugin for
Windows that we probably can't fix. The way the Windows NSP
architecture works is that when a name lookup is requested, Windows
passes the name to all the plugins so they can take action as
necessary. In the case of dot-local name lookups, the mDNS plugin
gets called which issues the mDNS query and it usually gets the
response within a few milliseconds, and then it passes its results
back up to Windows. However, Windows doesn't pass these results back
to the client application until the Windows built-in DNS resolver has
timed out, which normally takes around 2 seconds.
So unfortunately, I don't know of any way to get around this, but now
that you mention it, I wonder if this delay is caused by NetBIOS
queries, and not by DNS queries.
-Marc
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