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Forum Topic - qnet and two subnet: (6 Items)
   
Update
Mario Charest
11/29/2007 9:47 AM
post3087
qnet and two subnet   
For a while I've been trying to figure out how to link two sites via qnet.

Each site is using qnet without being binded to ip.  I'm assuming performance is better that way and our design need to 
use the ndp resolver.

But once in a while we would like to access machine on the other site, to get the benefit of "remote access".   How to  
I link each site with the other.  Does each machines on both network need to start with IP binding?  How do I do that 
without loosing the ndp resolver, two io-nets?
Colin Burgess(deleted)
11/29/2007 9:51 AM
post3089
Re: qnet and two subnet   
This was an issue back with QNX4 Fleet too - AFAIK, you will need to run 
qnet over IP, or use an ethernet bridge between the
two, so that they appear to be on the same net.

Mario Charest wrote:
>
> For a while I've been trying to figure out how to link two sites via 
> qnet.
>
> Each site is using qnet without being binded to ip.  I'm assuming 
> performance is better that way and our design need to use the ndp 
> resolver.
>
> But once in a while we would like to access machine on the other site, 
> to get the benefit of "remote access".   How to  I link each site with 
> the other.  Does each machines on both network need to start with IP 
> binding?  How do I do that without loosing the ndp resolver, two io-nets?
>
>
>
> _______________________________________________
> Technology
> http://community.qnx.com/sf/go/post3087
>

-- 
cburgess@qnx.com
Mario Charest
11/29/2007 10:17 AM
post3091
Re: qnet and two subnet   
> This was an issue back with QNX4 Fleet too - AFAIK, you will need to run 
> qnet over IP, or use an ethernet bridge between the
> two, so that they appear to be on the same net.

Since I can't use qnet over IP alone since I'm loosing the ndp resolver that means i have to run qnet over IP and 
directly at the same time.  I'm asking how to do that "legaly"

> 
> Mario Charest wrote:
> >
> > For a while I've been trying to figure out how to link two sites via 
> > qnet.
> >
> > Each site is using qnet without being binded to ip.  I'm assuming 
> > performance is better that way and our design need to use the ndp 
> > resolver.
> >
> > But once in a while we would like to access machine on the other site, 
> > to get the benefit of "remote access".   How to  I link each site with 
> > the other.  Does each machines on both network need to start with IP 
> > binding?  How do I do that without loosing the ndp resolver, two io-nets?
> >
> >
> >
> > _______________________________________________
> > Technology
> > http://community.qnx.com/sf/go/post3087
> >
> 
> -- 
> cburgess@qnx.com
>
Robert Craig
11/29/2007 12:19 PM
post3113
RE: qnet and two subnet   
You can't run two independent versions of qnet (one IP and one Ethernet), so
that's not an option...

We've talked about this a little bit internally.  Technically speaking,
because the IP and Ethernet are two different l4 layers, it "should" be
possible to get the upper qnet layer to use them simultaneously.  However,
we're not sure what we'd do with the command line parsing to enable the two
layers to get arguments independently.

You can, of course, use DNS for the resolver instead if you're running over
IP, but this does indeed have it's own issues so I can understand why you'd
want to stick with the NDP resolver.

So I guess that the short answer is that simultaneous IP / Ethernet isn't
officially supported but may be technically possible.  We'll have to spend
some time looking into it when we get freed up from the current work load. 

(I know... sounds like it won't happen in the very near future....)

    Robert.


-----Original Message-----
From: Mario Charest [mailto:mcharest@zinformatic.com] 
Sent: Thursday, November 29, 2007 10:18 AM
To: technology-networking
Subject: Re: qnet and two subnet

> This was an issue back with QNX4 Fleet too - AFAIK, you will need to run 
> qnet over IP, or use an ethernet bridge between the
> two, so that they appear to be on the same net.

Since I can't use qnet over IP alone since I'm loosing the ndp resolver that
means i have to run qnet over IP and directly at the same time.  I'm asking
how to do that "legaly"

> 
> Mario Charest wrote:
> >
> > For a while I've been trying to figure out how to link two sites via 
> > qnet.
> >
> > Each site is using qnet without being binded to ip.  I'm assuming 
> > performance is better that way and our design need to use the ndp 
> > resolver.
> >
> > But once in a while we would like to access machine on the other site, 
> > to get the benefit of "remote access".   How to  I link each site with 
> > the other.  Does each machines on both network need to start with IP 
> > binding?  How do I do that without loosing the ndp resolver, two
io-nets?
> >
> >
> >
> > _______________________________________________
> > Technology
> > http://community.qnx.com/sf/go/post3087
> >
> 
> -- 
> cburgess@qnx.com
> 




_______________________________________________
Technology
http://community.qnx.com/sf/go/post3091
Mario Charest
11/29/2007 2:53 PM
post3126
Re: RE: qnet and two subnet   
> You can't run two independent versions of qnet (one IP and one Ethernet), so
> that's not an option...
> 
> We've talked about this a little bit internally.  Technically speaking,
> because the IP and Ethernet are two different l4 layers, it "should" be
> possible to get the upper qnet layer to use them simultaneously.  However,
> we're not sure what we'd do with the command line parsing to enable the two
> layers to get arguments independently.
> 
> You can, of course, use DNS for the resolver instead if you're running over
> IP, but this does indeed have it's own issues so I can understand why you'd
> want to stick with the NDP resolver.
> 
> So I guess that the short answer is that simultaneous IP / Ethernet isn't
> officially supported but may be technically possible.  We'll have to spend
> some time looking into it when we get freed up from the current work load. 
> 
> (I know... sounds like it won't happen in the very near future....)
> 
>     Robert.
> 

Cool.  I was afraid the solution what just in front of me and I couldn't see it ;-)
Xiaodan Tang(deleted)
11/29/2007 7:27 PM
post3140
Re: RE: qnet and two subnet   
I can't try it now and this is all from memory...

The resolver is bound to "mountpoint", so you suppose to put you remote
machines under a different resolver. Like:

     mount=/net,resolver=ndp,mount=/remote.com,resolver=dns

Now how can this co-exist with bind= option, I don't know for sure...

-xtang

-----Original Message-----
From: Mario Charest <mcharest@zinformatic.com>
To: technology-networking <post3126@community.qnx.com>
Sent: Thu Nov 29 14:53:41 2007
Subject: Re: RE: qnet and two subnet

> You can't run two independent versions of qnet (one IP and one Ethernet),
so
> that's not an option...
> 
> We've talked about this a little bit internally.  Technically speaking,
> because the IP and Ethernet are two different l4 layers, it "should" be
> possible to get the upper qnet layer to use them simultaneously.  However,
> we're not sure what we'd do with the command line parsing to enable the
two
> layers to get arguments independently.
> 
> You can, of course, use DNS for the resolver instead if you're running
over
> IP, but this does indeed have it's own issues so I can understand why
you'd
> want to stick with the NDP resolver.
> 
> So I guess that the short answer is that simultaneous IP / Ethernet isn't
> officially supported but may be technically possible.  We'll have to spend
> some time looking into it when we get freed up from the current work load.

> 
> (I know... sounds like it won't happen in the very near future....)
> 
>     Robert.
> 

Cool.  I was afraid the solution what just in front of me and I couldn't see
it ;-)




_______________________________________________
Technology
http://community.qnx.com/sf/go/post3126

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