[OLSR-users] OLSR-0.4.5 and Bridging WDS Interfaces
Mon Jul 5 13:45:13 CEST 2004
Hi again Graeme,
Thanks for the explanation. I know to little about the
hostAP/WDS scheme to draw any conclusions about the
problems... hopefully somebody else on the list knows
more about it?
Anyways, what I can tell you is that different kind
of wierdness could definetly occure when running olsrd
on "non-physical" interfaces :)
My best guess is that the problems are connected to the
special setup, olsrd 0.4.5 has ran for some hours here
now(since I received your first mail) on a small fixed
topology without any strange things happening.
But you assume right about OLSR operation. In a static
network it will work much like any link-state routing
protocol, and in your scenario the routes should be
Hopefully somebody else has some comments on this.
> Hi Andreas
> Well I want to make my wireless routers automatically mesh together when
> they are running HostAP in infrastructure mode. The shell script in question
> runs as a background process and it periodically scans for WDS link status
> and will either add WDS links to bridge interface br0 or delete WDS links from
> br0. The script will also do an ifconfig up or down on a wlan0wds# link as required.
> The br0 interface carries an IP address like 126.96.36.199/8 so all wireless routers
> are in the 188.8.131.52/8 subnet. I tell OLSR to use the br0 interface only in the
> conf file (no mention of wlan0wds# interfaces there). The script starts up before
> olsr is started and it continues to run in the background as olsr runs.
> So my goal is automatic meshing, rather than mobility (My wireless routers will not
> move around). I saw some comments from you in the list archives that olsr might
> not run happily on a bridged interface due to potential weirdness in assigning a
> socket to such an interface. I do not now what to expect from OLSR but assume
> it should converge to a steady-state routing solution if the network and wireless
> conditions are pretty stable ( I am mentally think it will be something like OSPF
> as both are link-state routing protocols)
> I appreciate that I may be setting up an unsupported config here, but I just wanted
> your opinion on this. :)
> Best regards
> PS the olsr plugin idea is very cool :)
> -----Original Message-----
> From: Andreas Tønnesen [mailto:(spam-protected)]
> Sent: Mon 05/07/2004 09:44
> To: Brown,GN,Graeme,XVR2 BROWNGN R
> Cc: (spam-protected)
> Subject: Re: [OLSR-users] OLSR-0.4.5 and Bridging WDS Interfaces
> I don't know if I fully understand your setup. You
> are adding mobility by adding and removing links
> using a script? Or are these links just set up
> initially using this script?
> If the links are static OLSR should definelty provide
> stable routes. In that case, try 0.4.4 and see if it
> works better. If it does there probably is a bug in 0.4.5
> Please report back.
> (spam-protected) wrote:
> > Hi
> > I am new to using Unik-OLSR and have recently tried release 0.4.5.
> > I installed it on 5 wireless router nodes which use HostAP in infrastructure
> > mode. Since HostAP is running in infrastructure mode, WDS links are
> > formed dynamically which are added to or deleted from a bridge interface
> > br0 by a background shell script. I tried to to run OLSR on the br0 interfaces
> > using IP addresses in 1.x.y.z/8
> > I observed the routing table at a wireless router via
> > watch netstat -rn
> > All nodes seem to find each other but I did not see routing reach a stable state.
> > Routes to Nodes appeared in the routing table for a few seconds, then disappeared
> > and re-appeared some seconds later. It gave me the impression that routing never
> > converged to a steady state ?? Should I expect OLSR to converge to a steady state
> > routing table for the network ? All 5 wireless routers were stationary, located within the same room and within radio range of each other.
> > Best Regards
> > Graeme Brown
> > ------------------------------------------------------------------------
> > _______________________________________________
> > olsr-users mailing list
> > (spam-protected)
> > https://www.olsr.org/mailman/listinfo/olsr-users
> Andreas Tønnesen((spam-protected))
> UniK University Graduation Center
> University of Oslo
UniK University Graduation Center
University of Oslo
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