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Re: [BPQ32] Re: BPQ32 routing, how smart is it?

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  • Mark
    I have a complete copy of ALL the FlexNet modules if anyone needs them. - Mark K2CAN
    Message 1 of 4 , Mar 31, 2009
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      I have a complete copy of ALL the FlexNet modules if anyone needs them.

      - Mark K2CAN


      Jeff Thomas - WA4ZKO wrote:
      >
      >
      > Okay, sounds like it will do what I want, especially if I set quality
      > values carefully and ....the big one... set fairly aggressive timeout
      > values on the internet path (so it detects the outage faster)?
      >
      > We'd like to flow most of the inter-node traffic between sites over the
      > internet normally for speed/cost reasons, but want things to fall back
      > to the RF backbones if the internet goes down. Basically we want the
      > best of both worlds, grin.
      >
      > Can you lock in more than one route to an adjacent node? Would you want
      > to in this scenario?
      >
      > Am I on the right track here? Warm weather is approaching and I hope to
      > get started on antennas and so forth, just evaluating what's out there
      > and game planning.
      >
      > There's a lot I like about what I read and hear regarding FlexNet. That
      > said, I'll admit that I've never sysop'ed a flexnet node. The polled
      > nature and autorouting sounds nice. Lot of talk about how it's more
      > efficient in terms of throughput, but never really see any back up for
      > such claims. I use FlexNet systems in the New England area and I don't
      > see any noticeable difference. It also appears that FlexNet development
      > has either stalled or is dead for many years now....that concerns me.
      > Just getting your hands on the node module can be fun since the
      > links/email on the FlexNet site seem dead or unmonitored.
      >
      > We also want to do this stuff with one PC and a fairly integrated stack
      > of software on that one PC, not a hodgepodge of stuff. Space at many
      > sites is at a premium. Plus it's pretty clear that electricity costs
      > here in many parts of the USA are going to go up drastically and soon.
      > Thus a wise ham with piles of PC's will start thinking long and hard
      > about consolidating this stuff as much as possible...and soon. BPQ32
      > looks to be the trick so far.
      >
      > Thanks for entertaining my questions.
      >
      > 73
      > Jeff
      > WA4ZKO
      >
      > --- In BPQ32@yahoogroups.com <mailto:BPQ32%40yahoogroups.com>, "John
      > Wiseman" <john.wiseman@...> wrote:
      > >
      > > Jeff,
      > >
      > > Yes, you can favour one port over another using quality values. So
      > > traffic could switch from AXIP to 9600, then 9600 to 1200.
      > >
      > > If the software detects that a link is down (ie no response to SABM, or
      > > poll timout after a number of retries), it will immediately try to open
      > > the next best link. Assuming this works, the next L4 retry will be sent
      > > over the new link.
      > >
      > > Traffic will normally switch back when a NODES broadcast is again heard
      > > from the failed station. If there is no traffic for long enough for the
      > > backup L2 session to close. it will try to resetablish to the best route
      > > first, and if that is still down will revert as above.
      > >
      > > I'm obviously not the bst person to advise on the relative merits of
      > > flexnet, but it is worth bearing in mind that BPQ32's underlying
      > > protocol (NETROM) is implented by quite a few products (eg TheNet,
      > > Linux, NOS, MSYS).
      > >
      > > 73,
      > > John
      > >
      > >
      > >
      > >
      > >
      > >
      > > -----Original Message-----
      > > From: BPQ32@yahoogroups.com <mailto:BPQ32%40yahoogroups.com>
      > [mailto:BPQ32@yahoogroups.com <mailto:BPQ32%40yahoogroups.com>] On Behalf Of
      > > Jeff Thomas - WA4ZKO
      > > Sent: 31 March 2009 05:09
      > > To: BPQ32@yahoogroups.com <mailto:BPQ32%40yahoogroups.com>
      > > Subject: [BPQ32] BPQ32 routing, how smart is it?
      > >
      > >
      > >
      > > Don't have enough infrastructure up in my area yet to test this myself,
      > > so figured I'd bounce this off the group.
      > >
      > > Hypothetical....
      > >
      > > Node A and Node B both have 3 ports each:
      > > Port 1 - your typical 1200 baud user port.
      > > Port 2 - a 9600 backbone port
      > > Port 3 - AXIP
      > >
      > > Both Node A and Node B are in different cities. Both are BPQ32. Both can
      > > see each other via RF on ports 1 and 2, and via AXIP over high speed
      > > internet.
      > >
      > > If I'm okay so far, a few questions:
      > >
      > > 1. Can you tell BPQ32 to favor Port 3 normally? I'm assuming this would
      > > be done via port quality values.
      > >
      > > 2. Can you tell BPQ32 to favor Port 2 (9600) if for some reason Port 3
      > > disappears (internet failure)? Again via port quality value.
      > >
      > > 3. How fast/well will BPQ32 figure out Port 3 is down and switch to Port
      > > 2?
      > >
      > > 4. How will it handle things when Port 3 becomes available again?
      > >
      > > We're kind of in the middle of debating going with BPQ32 or FlexNet
      > > locally. Thus I'm curious how good BPQ32 is at routing around outages
      > > when multiple paths/ports are involved.
      > >
      > > 73
      > > Jeff
      > > WA4ZKO
      > >
      >
      >
      >
      >
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