A note on mesh networks.
a true mesh where any node can pop up and self organizes to join the network
runs into the hidden transmitter problem (you have stations A, B and C, A and C
can hear B but can't hear each other so as they try to communicate, they step on
each other so that B can't understand either of them)
relaying on the same band (let alone on the same channel) doesn't scale.
pure wifi connected nodes where you use 2.4GHz channels for user access and 5GHz
channels for infrastructure links can work very well, but you need to plan your
channel allocations properly, have nodes with more than one 5GHz radio (or you
run into the hidden transmitter problem again on the infrastructure side), and
use wires to connect the infrastructure nodes when you can.
David Lang
On Sat, 14 Oct 2023, Dave Taht via Nnagain wrote:
Date: Sat, 14 Oct 2023 20:54:14 -0700
From: Dave Taht via Nnagain <[email protected]>
To: [email protected], libreqos <[email protected]>
Cc: Dave Taht <[email protected]>
Subject: [NNagain] shared wireless access
Sorry about that. this list is intended to be more political in scope.
Moving the nnagain list to the bcc.
The libreqos list and chatroom has some smart wisps on it, but your
conditions are a bit vague? Could you describe your scenario more
fully?
There are many mesh network types out there. I am most familiar with
openwrt-derived solutions on pre-802.11ax. It is possible using older
wifi tech (that supports adhoc mode) to build a highly redundant mesh
of connecting everything to everything. Examples of that include
guifi, wlan-slovinia, nyc-mesh, freifunk, etc. But people tend to
rebuild/reflash their own routers to support it fully.
If you are talking about having more than one exit node from a mesh,
the babel protocol is sometimes used for that. (not clear what you are
asking)
Other examples today might include ubnt's mesh stuff, or tarana's NLOS
wan, or tachyon... but there are many products in the market, and help
can be found in a couple different chatrooms.
On Sat, Oct 14, 2023 at 8:41 PM le berger des photons via Nnagain
<[email protected]> wrote:
as interesting as this all is, this wasn't the discussion I'm looking for.
Perhaps you know of somewhere I can go to find what I'm looking for. I'm
looking to figure out how to share two different accesses among the same group
of clients depending on varying conditions of the main wifi links which serve
them all. Thanks for any direction.
On Sun, Oct 15, 2023 at 2:25 AM Dave Cohen via Nnagain
<[email protected]> wrote:
I’m a couple years removed from dealing with this on the provider side but the
focus has shifted rapidly to adding core capacity and large capacity ports to
the extent that smaller capacity ports like 1 Gbps aren’t going to see much
more price compression. Cost per bit will come down at higher tiers but there
simply isn’t enough focus at lower levels at the hardware providers to afford
carriers more price compression at 1 Gbps, even 10 Gbps. I would expect further
price compression in access costs but not really in transit costs below 10 Gbps.
In general I agree that IXs continue to proliferate relative to quantity,
throughput and geographic reach, almost to the degree that mainland Europe has
been covered for years. In my home market of Atlanta, I’m aware of at least
four IXs that have been established here or entered the market in the last
three years - there were only two major ones prior to that. This is a net
positive for a wide variety of reasons but I don’t think it’s created much of
an impact in terms of pulling down transit prices. There are a few reasons for
this, but primarily because that growth hasn’t really displaced transit demand
(at least in my view) and has really been more about a relatively stable set of
IX participants creating more resiliency and driving other performance
improvements in that leg of the peering ecosystem.
Dave Cohen
[email protected]
> On Oct 14, 2023, at 7:02 PM, Dave Taht via Nnagain
<[email protected]> wrote:
>
> This set of trendlines was very interesting. Unfortunately the data
> stops in 2015. Does anyone have more recent data?
>
>
https://drpeering.net/white-papers/Internet-Transit-Pricing-Historical-And-Projected.php
>
> I believe a gbit circuit that an ISP can resell still runs at about
> $900 - $1.4k (?) in the usa? How about elsewhere?
>
> ...
>
> I am under the impression that many IXPs remain very successful,
> states without them suffer, and I also find the concept of doing micro
> IXPs at the city level, appealing, and now achievable with cheap gear.
> Finer grained cross connects between telco and ISP and IXP would lower
> latencies across town quite hugely...
>
> PS I hear ARIN is planning on dropping the price for, and bundling 3
> BGP AS numbers at a time, as of the end of this year, also.
>
>
>
> --
> Oct 30: https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html
> Dave Täht CSO, LibreQos
> _______________________________________________
> Nnagain mailing list
> [email protected]
> https://lists.bufferbloat.net/listinfo/nnagain
_______________________________________________
Nnagain mailing list
[email protected]
https://lists.bufferbloat.net/listinfo/nnagain
_______________________________________________
Nnagain mailing list
[email protected]
https://lists.bufferbloat.net/listinfo/nnagain
--
Oct 30: https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html
Dave Täht CSO, LibreQos
_______________________________________________
Nnagain mailing list
[email protected]
https://lists.bufferbloat.net/listinfo/nnagain
_______________________________________________
Nnagain mailing list
[email protected]
https://lists.bufferbloat.net/listinfo/nnagain
