From: "Dave Brown (QNX)" <community-noreply@qnx.com>
To: "general-networking@community.qnx.com" <general-networking@community.qnx.com>
Sent: Monday, July 15, 2013 4:21:47 PM
Subject: RE: Qnet discovery failure

You can either add the Qnet option bind=wm0 (to specifically attach to wm0 only) or increase the max_num_l4s=x option from the default of two.

Io-pkt –d driver options,options –p /lib/dll/lsm-qnet.so bind=wm0
mount –T io-pkt –o bind=wm0 /lib/dll/lsm-qnet.so

Dave

From: community-noreply@qnx.com [mailto:community-noreply@qnx.com]
Sent: July-15-13 4:15 PM
To: general-networking@community.qnx.com
Subject: Re: Qnet discovery failure

Ok, I think I might be seeing the problem (thanks), although I am not sure what to do.  On 103, there are 3 connections plus the loopback: rt0, rt1 and wm0.  I am using wm0 with rt0 and rt1 disabled.  qnetstats shows 3 connections: rt0 and rt1.  What to do, what to do?  Ideas?

Terry
________________________________
From: "Dave Brown (QNX)" <community-noreply@qnx.com<mailto:community-noreply@qnx.com>>
To: "general-networking@community.qnx.com<mailto:general-networking@community.qnx.com>" <general-networking@community.qnx.com<mailto:general-networking@community.qnx.com>>
Sent: Monday, July 15, 2013 3:23:32 PM
Subject: RE: Qnet discovery failure
Does the section under L4 Status show that packets are being sent (txd ok or rx ok). It should show all network interfaces present. How many network interfaces are present on node 103?

Dave

From: community-noreply@qnx.com<mailto:community-noreply@qnx.com> [mailto:community-noreply@qnx.com]
Sent: July-15-13 12:43 PM
To: general-networking@community.qnx.com<mailto:general-networking@community.qnx.com>
Subject: Re: Qnet discovery failure

Dave,

Thanks for the help.  The IP is working - all 3 nodes can ping one another and qnx.com - all 3 nodes are hanging off the same Linksys RV082 router.  All nodes started networking identically (as far as I can tell).  The 3 nodes have IP addresses of 192.168.2.{103,110,118} and all have the same subnet mask: 255.255.255.0.  I did not turn off auto-discovery on the errant node (103), but I am not sure how to tell that it is on or off when the machine is running.  I have looked at qnetstats, but, really, I am not sure what I am seeing, though all of the machines appear to have similar (proc) files except for some addresses.  EXCEPT that 110 and 118 show each other as Tx Connections with an RX Connection of 'ln 1 rn 1 lc 1 rc 1 tc TCTC sq SQ' where TCTC == 97137 for 110, 38979 for 118, and SQ == 13 for 110, 5 for 118.  AND 108 has nothing under either TX Connections or RX Connections.

Are there any clues there that I should pursue?

Terry
________________________________
From: "Dave Brown (QNX)" <community-noreply@qnx.com<mailto:community-noreply@qnx.com>>
To: "general-networking" <general-networking@community.qnx.com<mailto:general-networking@community.qnx.com>>
Sent: Monday, July 15, 2013 11:07:42 AM
Subject: RE: Qnet discovery failure

If IP is working, are all hosts on the same IP subnet? If so, the Qnet auto discovery should be working. Qnet uses broadcasts to discover the other nodes. You will want to make sure that auto discovery is not disabled on the command line (auto_add=x). You can use "cat /proc/qnetstats" to view any debugging related to node discovery.

Dave

-----Original Message-----
From: Terry Laughlin [mailto:community-noreply@qnx.com]
Sent: July-11-13 1:28 PM
To: general-networking
Subject: Qnet discovery failure

I need some help from somebody who knows qnx and routers.  I have three systems hung from a linksys rv082.  All are using qnx 6.5 and (purportedly) using qnet.  The one booting under VMware (118) and one of the standalone boxes (110) can see each other just fine (ls /net shows 118 and 110 on both).  But the 'master' (103) sees neither.  I am just bringing up the network after a move and I reinstalled QNX on the 110 box to move from 6.4 to 6.5.  It worked the same previously and I had hopes that a new setup and upgrading one of the boxes would cure it, but no luck.  All three boxes are configured identically (as far as I can tell) and all three can ping each other.  Do you have any ideas on what to do or try to diagnose the problem.  I have read the manual and looked in obvious places, but no joy.  I thought there might be some isolation of 103 under the rv082 (not on the same sub-net) but I can't find it.



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http://community.qnx.com/sf/go/post103186
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General
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