I was looking over the "upgrade in place" concept again, today in
light of the worldwide chip shortage. Recycled routers are making more
sense
https://docs.google.com/document/d/1T21on7g1MqQZoK91epUdxLYFGdtyLRgBat0VXoC9e3I/edit
The i211 ethernet chips that I otherwise have loved so much are
Those are really high split rates. We (as in UFB in NZ) looked at 32:1
splits but it's rare - in practice it's often half that. Splits end up
based on contention of regulated L2 plans which are sold to RSP's to
on-sell to customers. Based on available backhaul bandwidth rather than any
factor. i.e
Jonas Mårtensson wrote:
>> getting gpon more right has increasingly been on my mind
> I think more right is to not turn the fiber into a shared medium in the
> first place but since gpon is so popular, improving it seems like a
> nice goal.
>> Nobody in their right mind is
There have been, oh, 3? papers or so that I thought were good on how
to do queuing more right on 5G networks, out of the hundreds. I'm
pretty
sure I posted a couple of the most promising ones here, but cannot
remember enough (today my head is filled with gpon) of wading through
the alphabet soup
Hi Jonas,
> On Jan 14, 2022, at 14:50, Jonas Mårtensson
> wrote:
>
> > Not all ISPs work with a single level of splitters, some do 1:4 and split
> > each of the four up into more later, I would guess that 1:4 + 1:8 will have
> > a bigger aggregate attenuation than going 1:32 directly, but
> Not all ISPs work with a single level of splitters, some do 1:4 and
split each of the four up into more later, I would guess that 1:4 + 1:8
will have a bigger aggregate attenuation than going 1:32 directly, but I am
guessing here, so thanks for the numbers.
It will be slightly higher, mainly
Hi Jonas,
> On Jan 14, 2022, at 14:12, Jonas Mårtensson
> wrote:
>
> > Sure, but given that you probably need a few splices along the way and
> > preferably pluggable connectors at both ends the loss budget is not that
> > large (assuming an ISP does not want to push its luck and allows
> Sure, but given that you probably need a few splices along the way and
preferably pluggable connectors at both ends the loss budget is not that
large (assuming an ISP does not want to push its luck and allows for stuff
like end-users not cleaning the plug diligently before each plugging).
GPON
Hi Jonas,
> On Jan 14, 2022, at 11:44, Jonas Mårtensson
> wrote:
>
> Hi,
>
> > getting gpon more right has increasingly been on my mind
>
> I think more right is to not turn the fiber into a shared medium in the first
> place but since gpon is so popular, improving it seems like a nice
Hi,
> getting gpon more right has increasingly been on my mind
I think more right is to not turn the fiber into a shared medium in the
first place but since gpon is so popular, improving it seems like a nice
goal.
> Nobody in their right mind is going to hook up 128 terminalt to one OLT
port,
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