Mesh speed + traceroute

[Brian DeLacey]

Hi Petri,
We had the same experience with the rate setting.

How are the initial default speeds set - is it driver by driver? is it
machine by machine?

Somewhat related, I've seen trying to gauge what kind of radio strength we
are getting and I'm not sure how much to rely on iwconfig's Tx-Power?

Is iwconfig being deprecated? Is the way forward for managing/viewing these
kinds of settings with iw?

Brian


On Sat, Mar 28, 2009 at 5:10 AM, Petri Virkkala
<petri.virkkala at ee.tamk.fi>wrote:

> If someone else is struggling with low speeds, there is a iwconfig command
> which did the trick for us:
>
> "sudo iwconfig mesh rate 54M" (man iwconfig)
>
> - Petri Virkkala
>
>
> > Hi Javier and Andrey,
> >
> > thanks for your fast replies!
> >
> > Connection speed was measured by a simple ssh file transfer between
> > two links. I might be wrong but I remember reading somewhere that
> > there is/was an 1Mbit limit to connection speed. Could it assosiated
> > with the zd1211rw driver we are using?  What else could explain the
> > slow transfer rate?
> >
> > - Petri Virkkala
> >
> > ----- Alkuperäinen viesti -----
> > Lähettäjä: Javier Cardona <javier at cozybit.com>
> > Päiväys: Lauantai, maaliskuuta 14, 2009 0:30
> > Aihe: Re: Mesh speed + traceroute
> > Vastaanottaja: devel at lists.open80211s.org
> >
> >
> > > Hi Petri,
> > >
> > > On Fri, Mar 13, 2009 at 6:05 AM, Petri Virkkala
> > > <petri.virkkala at ee.tamk.fi> wrote:
> > > > thanks for your hard work! We are testing mesh in a school project
> >
> > > and have a working network with 4 nodes. We are using A-link WL54USB
> >
> > > adapters which seem to work well with the zd1211rw driver.
> > > >
> > > > I have a few questions:
> > > >
> > > > - Is the connection speed limited to 1Mbit/s? We can't seem to get
> >
> > > file transfer speeds above 100-120kb/s
> > >
> > > It is not.
> > >
> > > > - Routing seems to work fine, but why doesn't traceroute show the
> >
> > > amount of hops properly? Is there some tool which could confirm the
> >
> > > number of hops?
> > >
> > > traceroute shows layer 3 routes, and the mesh forwarding happens below
> > > the network layer.
> > > You can infer the number of (mesh) hops a packet has gone through by
> > > inspecting its Mesh TTL field.  You can either instrument the kernel
> > > or use a sniffer:  there's no tool for that.
> > >
> > > Javier
> > >
> > > --
> > > Javier Cardona
> > > cozybit Inc.
> > > _______________________________________________
> > > Devel mailing list
> > > Devel at lists.open80211s.org
> > > http://open80211s.com/mailman/listinfo/devel
> _______________________________________________
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