[OLSR-users] Re: OLSR Network Dying

Sat Jul 2 00:11:41 CEST 2005

Well,

I tried all the firmware down to version 1.4.9, still has this problem
on packets > 100 bytes.  However, on all the versions if I set frag
off rts off it works fine.  Since this is the only thing I can do, all
nodes are like this for the time being.

If I was to find a working firmware, would I have to load it to ram on
every node reboot?

If you have any suggestions I will try them, but thanks for your help
to this point.

For the list it seems the problem is the wireless interface (prism
hostap) not allowing packets greater then 100 bytes.  It seems this is
a frag/rts problem not mtu.

Andrew

On 7/1/05, Andrew Hodel <(spam-protected)> wrote:
> I have updated it, the ram way.  Still not working from what I can
> tell.  I guess there is no way to update to the card without windows?
> 
> Considering these cards are all up on roofs in soekris boards running linux....
> 
> Any other suggestions.
> 
> 
> 
> Andrew
> 
> 
> mnode1:~# prism2_srec -r wlan0 1.7.4/rf010704.hex
> srec summary for rf010704.hex
> Included file name: RF010704.HEX
> Component: 0x001f 1.7.4 (station firmware)
> 
> 
> Verifying update compatibility and combining data:
> OK.
> 
> Downloading to volatile memory (RAM).
> OK.
> Components after download:
>   NICID: 0x8013 v1.0.0
>   PRIID: 0x0015 v1.1.1
>   STAID: 0x001f v1.7.4
> mnode1:~# ifconfig wlan0 down
> mnode1:~# ifconfig wlan0 up
> mnode1:~# hostap_diag wlan0
> Host AP driver diagnostics information for 'wlan0'
> 
> NICID: id=0x8013 v1.0.0 (PRISM II (2.5) Mini-PCI (SST parallel flash))
> PRIID: id=0x0015 v1.1.1
> STAID: id=0x001f v1.7.4 (station firmware)
> mnode1:~#
> 
> 
> On 7/1/05, Bruno Randolf <(spam-protected)> wrote:
> > On Friday 01 July 2005 22:27, Andrew Hodel wrote:
> > > On another subject, do you have any suggestions for frag/rts values?
> >
> > what we use over here in berlin (http://olsrexperiment.de) is frag 500 rts 250
> > - this seemed a good compromise between performance and stability, but we
> > have not done real tests or research on it.
> >
> > bruno
> >
> > > Thanks,
> > > Andrew
> > >
> > > On 7/1/05, Andrew Hodel <(spam-protected)> wrote:
> > > > also want to note:
> > > >
> > > > On 7/1/05, Andrew Hodel <(spam-protected)> wrote:
> > > > > This is what I have:mnode1:~/1.8.4# prism2_srec wlan0 s
> > > >
> > > > sf010804.hex  su010804.hex
> > > > mnode1:~/1.8.4# prism2_srec wlan0 su010804.hex
> > > > srec summary for su010804.hex
> > > > Component: 0x001f 1.8.4 (station firmware)
> > > >
> > > >
> > > > Verifying update compatibility and combining data:
> > > > NICID was not found from the list of supported platforms.
> > > > Incompatible update data.
> > > > mnode1:~/1.8.4# prism2_srec wlan0 sf010804.hex
> > > > srec summary for sf010804.hex
> > > > Component: 0x001f 1.8.4 (station firmware)
> > > >
> > > >
> > > > Verifying update compatibility and combining data:
> > > > Could not find data position for plugging PDR 0x0413 at 0x0000118a
> > > > (len=2) PDR 0x0413 is not in wlan card PDA and there is no default data.
> > > > Ignoring plug record.
> > > > OK.
> > > > mnode1:~/1.8.4#
> > > >
> > > >
> > > > it seems 1.8.4 is the latest version, not compatible??
> > > >
> > > >
> > > >
> > > > Andrew
> > > >
> > > > > mnode1:~# hostap_diag wlan0
> > > > > Host AP driver diagnostics information for 'wlan0'
> > > > >
> > > > > NICID: id=0x8013 v1.0.0 (PRISM II (2.5) Mini-PCI (SST parallel flash))
> > > > > PRIID: id=0x0015 v1.1.1
> > > > > STAID: id=0x001f v1.8.0 (station firmware)
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Andrew
> > > > >
> > > > > On 7/1/05, Bruno Randolf <(spam-protected)> wrote:
> > > > > > On Friday 01 July 2005 20:37, Andrew Hodel wrote:
> > > > > > > All prism cards, all hostap same version
> > > > > >
> > > > > > ok, thats what i have made the best experiences with.
> > > > > > which firmware versions? i recommend:
> > > > > >
> > > > > > PRIID: id=0x0015 v1.1.1
> > > > > > STAID: id=0x001f v1.7.4 (station firmware)
> > > > > >
> > > > > > bruno
> > > > > >
> > > > > > > Andrew
> > > > > > >
> > > > > > > On 7/1/05, Bruno Randolf <(spam-protected)> wrote:
> > > > > > > > hello!
> > > > > > > >
> > > > > > > > this looks more like a layer 2 problem than a olsr problem. do
> > > > > > > > you use different types of wlan cards / drivers in the network? i
> > > > > > > > have seen problems like this when different, buggy wlan drivers
> > > > > > > > and firmware versions have been used to form the ad-hoc network.
> > > > > > > > unfortunately ad-hoc mode is implemented poorly in most drivers.
> > > > > > > >
> > > > > > > > bruno
> > > > > > > >
> > > > > > > > On Friday 01 July 2005 19:06, Andrew Hodel wrote:
> > > > > > > > > This seems to be the problem.
> > > > > > > > >
> > > > > > > > > `ping -s 300 host` doesn't work, normal ping packets do.
> > > > > > > > >
> > > > > > > > > The mtu on all nodes is set to 1500, I don't know what would be
> > > > > > > > > causing this.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Andrew
> > > > > > > > >
> > > > > > > > > On 7/1/05, Benoit PAPILLAULT <(spam-protected)> wrote:
> > > > > > > > > > Andrew Hodel a écrit :
> > > > > > > > > > > Today I have extremely wierd problems, it seems I can ping
> > > > > > > > > > > and telnet to hosts but when I try ssh or http nothing
> > > > > > > > > > > works?
> > > > > > > > > > >
> > > > > > > > > > > Could this be something with frag and rts being too low?
> > > > > > > > > > >
> > > > > > > > > > > Any ideas?
> > > > > > > > > >
> > > > > > > > > > It can be related to wrong MTU. I have a USB adapter that
> > > > > > > > > > says "MTU : 1500". However, if i send a packet > 200 bytes,
> > > > > > > > > > it fails and i got the same symptoms as you. You can try ping
> > > > > > > > > > with larger size to see if this is your problem.
> > > > > > > > > >
> > > > > > > > > > Benoit
> > > > > > > > > > _______________________________________________
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> > > > > > > > >
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> >
> >
> >
>