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Nstream for Dummies

Posted: Fri Jun 13, 2008 2:30 am
by SweetSunday
MT documentation is rather coy about Nstream, so can someone tell me:

1. Can/would you use it in point-to-multipoint links and if so under what circumstances?

2. Is there any reason to use polling on a point-to-point link?

3. Is Nstream2 better than simply having a second wireless link with or without load balancing?

Ta.

Re: Nstream for Dummies

Posted: Sun Jun 15, 2008 4:23 pm
by Tanker
Hi there

We use NSTREME on all our Backhauls...

- greater distance
- greater throughput

We do not use polling on PtP links - but do use it where we have MPtP links - with the new board, OS and wireless card we are using this more and more to hook clients in NSTREAME - but use polling for this....

I know you don't like the new OS - but in V3.10 (all our units) we disable CSMA on the PtP links.

These links FLY..!!!!! - and are absolutely trouble free and rock solid.
Anything between 30Km and 80Km - all run in NSTREME - it's a standard with us.

I'm still undecided about NSTREME2 - we have implemented it a couple of times - and I haven't seen the benefit unless the "return link" requires HUGE throughput - so we use 2 x NSTREME links where required on seperate ranges - and it works a beaut. I belive in keeping the links simple - so Bonding and other requirements can become a hassle unless ou're on top of it all the time. I wish I had a link close enough for us to experiment a lot - but we don't have the time to "play" at the moment - expansion is the order of the day!!!!

Hope this is informative.

Tanker

Re: Nstream for Dummies

Posted: Sun Jun 15, 2008 7:32 pm
by roc-noc.com
Nstream works great. Don't forget to set the framer policy to 'best fit' and keep the framer limit at 3200.

And don't run Nstream in an area with a lot of interference problems. It will work against you.

Tom

Re: Nstream for Dummies

Posted: Mon Jun 16, 2008 11:16 am
by SweetSunday
Thanks guys. More than good enough for me.

Now, where's that book on CSMA for Dummies?

Re: Nstream for Dummies

Posted: Mon Jun 16, 2008 2:27 pm
by Tanker
Good place to start....

http://en.wikipedia.org/wiki/CSMA/CA

http://www.erg.abdn.ac.uk/users/gorry/c ... ma-cd.html

Ethernet-In-The-Air... using NSTREME might not require this "CSMA" as a lot (most of) the processing "discussions" between the ends are handed off to the CPU.... short version...

T

Re: Nstream for Dummies

Posted: Tue Jun 17, 2008 4:53 am
by SweetSunday
Good place to start....

http://en.wikipedia.org/wiki/CSMA/CA

http://www.erg.abdn.ac.uk/users/gorry/c ... ma-cd.html

Ethernet-In-The-Air... using NSTREME might not require this "CSMA" as a lot (most of) the processing "discussions" between the ends are handed off to the CPU.... short version...

T
Thanks Tanker, but this aspect of the swan's frantic paddling beneath the surface I'll have to leave to look after itself for the moment. I'm still struggling to come to grips with the bits of the swan I *can* see, such as:

http://forum.mikrotik.com/viewtopic.php?f=13&t=24629