[aprssig] The final WIDE2-1,WIDE1-1 solution!
greg at clubnet.net
Sat Apr 2 12:44:03 CST 2005
Before we get into SoCal specifics, I want to be clear on what the plan
is for RELAY support on the digis. Are we talking about immediately
(or as fast as can be done) removing support for RELAY at all
digipeaters or is there some transition period?
Back to the LA situation. Yes, we may be somewhat unique. I don't
know if anyone else is employing a one-hop network, but it sure is
effective. Try taking a look at Phil's UI-Traffic Monitor Page
(http://aprsca.net:8080/uiview/trafficlive.htm). As of today, with
preemptive digipeating employed on two of the four digis, RELAY is
perfectly supported and isn't causing extra packets. The same can be
done with the proposed WIDE1-1,WIDE2-1 fill-in fix, but for us to have
the same operation (no extra hops generated), it will either mean that
the remaining two digis will have to go to UIDIGI firmware (with
preemptive digipeating) or (if still running KPC3s) they will have to
have WIDE1-1 removed from their UIDIGI path list.
Right now, nothing much is required on our metro digis to support the
change. For the two UIDIGI firmware units removing WIDE1-1 from the
PREEMPTCALLS list will help. I think this will take time to flow into
everyday operation. We can massage the digi network to best accommodate
the situation. I think the tough thing will be getting those same
people whose never removed RELAY from the trackers or never turned-on
callsign substitution on their home RELAY digis to make the changes.
As a result, we have some fixed percentage of bandwidth chewed-up by
people using useless paths.
On Apr 2, 2005, at 6:30 AM, Robert Bruninga wrote:
> True. But in LA you simpily continue to promote WIDE2-2
> only even for mobiles and cut off RELAY entirely. Yes an
> occasional visitor may come in and get WIDE1-1,WIDE2-1
> double hop, but it should not be a problem. Also since
> it is only 4 digis that are currently enforcing the one-hop
> scenario, if worst comes to worse, we simply "fix" those
> digis with software if.
> Yes LA is unique. Maybe we can think of other tweaks to
> it to help make this fantastic WIDE1-1,WIDE2-1 idea work
> (where needed). Still mobiles should use not use it unless
> the area requires fill-in digis...
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