terprises.
Obviously the media is still UDP and subject to meddling.
--
Brandon Martin
ne from DHCP and time from (S)NTP exactly how you'd want it to. I
think it was even the default setting, but it has readily-accessible
knobs to configure that behavior if it's doing the wrong thing.
--
Brandon Martin
timezone option via your
DHCP servers?
--
Brandon Martin
re. I know some of them don't even support bit
twiddling of the handshaking lines and implement all of the handshakes
in hardware from a data FIFO making them fundamentally incompatible with
bit-banging serial protocols.
--
Brandon Martin
On 8/7/24 02:01, Saku Ytti wrote:
I can't help you, but I'm just awfully curious and must ask, why
specifically optical ports? Seems very strange and a limiting
requirement for upside that my imagination struggles to find.
Among the other reasons folks have given, the 10GBASE-T PHY has added
l
dy sharing a bunch of bit-bang code (which I think we are), then
I'm not sure how much it buys.
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Brandon Martin
handy if you want to have the
optical to electrical hand-off somewhere that there isn't (good) power.
--
Brandon Martin
have to do it with L3 connectivity to each ONT.
--
Brandon Martin
noted that were missed on the
initial attempt.
This patch stands alone from the others in the sequence that add support
for other features. I know those will probably want documentation
additions since they add extra commands.
--
Brandon Martin
ad
using SIP. Maybe it's time for it to just die along with the TDM PSTN
which a lot of states are essentially killing off by removing mandatory
service offering, anyway.
--
Brandon Martin
need full-scale
IPv4+IPv6. The software is mature and stable though lacking some modern
niceties.
--
Brandon Martin
On 5/12/24 22:11, Dave Cohen wrote:
There are some single-market/regional providers that I'm aware of
currently offering spectrum, but I believe you'll be hard pressed to
find others with national footprints in the US that will. Zayo and Lumen
both did a bit of a will they/won't they with it fo
is 25+ year old equipment. I'm sure
there's at least some market for them. They may even be worth more than
it costs to ship them to a reseller.
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friends have seen on their networks
before. The same would be true if I tried to make my own chatter
generator using something like scapy.
--
Brandon Martin
uot; type devices by exposing them
to lots of diverse, essentially nonsense traffic that they're likely to
see in a real environment.
--
Brandon Martin
On 12/2/23 15:09, Jay Hennigan wrote:
Rigid conduit is essentially galvanized plumbing pipe. Very rare in new
construction other than for overhead electrical service entrance. It's
extremely heavy and difficult to work with. As its name suggests, it's
quite rigid. Not easily bent or cut and nee
n without worrying about tearing up the others'
cables. If it's just poking through a wall, you're talking, what 8" of
pipe?
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Brandon Martin
Mothic Technologies
317-565-1357 x7000
electrician's point of view is that it basically installs
like Romex.
--
Brandon Martin
ndle DHCPv6-PD
delegations without having to resort to using BGP to inject the routes
(looking at you, Extreme SLX).
--
Brandon Martin
g to be familiar with for that. It's literally
where the term "smurf tube" came from AFAIK. It's not itself a
brand-specific thing (indeed multiple manufacturers make it) and is just
yet another type of raceway defined by NEC, but the blue Carlon stuff is
well known.
--
Brandon Martin
point you might as
well for for 2", honestly.
--
Brandon Martin
Used to be
they only stocked 3/4" and 1/2". They still only have 25ft hanks of the
1" stuff (you can get 1/2" and 3/4" in 25 or 100-200ft), but at least
they have it now. It is still about 4x the price of 3/4" per unit
length, though.
--
Brandon Martin
o
POTS+DSL. CAT6 is great for VDSL and G.FAST, and a standard cable gives
you 4 pairs to work with and is cheap and fairly tolerant of abuse
during install.
I would love to see the relevant standard updated to include e.g. a
duplex or 6-count tight buffered or breakout single-mode fiber cable.
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Brandon Martin
installs
(existing and pre-wire). AT&T and Centurylink/Lumen are the most likely
to have them IMO, but checking Frontier/Verizon (do they still have ANY
wireline territory?) may be useful, too, especially since they were the
earliest ones to do it.
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Brandon Martin
On 11/19/23 16:54, Sean Donelan wrote:
Of course, every local carrier will be different, what are the current
preferences for pre-wiring a customer demarc (NID, the box that hangs on
the outside of the house, whatever the service provider calls it now)?
1. Nothing - telco/cable will do whateve
ivate ASN for route collection.
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Brandon Martin
will do you no
good. That carrier is no longer the carrier of record for that TN.
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well be readily available cheap on the secondary market. If you can get
one, not only can you lab IT up, too, but you can also get your hands on
all the various configurables it may or may not have that your customer
is being less than cooperative with.
--
Brandon Martin
-view transits for this to work, though.
--
Brandon Martin
libopenjp2 2.5.0
> Found AVX2
> Found AVX
> Found FMA
> Found SSE4.1
> Found OpenMP 2019
> Found libarchive 3.5.1 zlib/1.2.11 liblzma/5.2.4 bz2lib/1.0.6
> libzstd/1.4.9
> Found libcurl/7.75.0 zlib/1.2.12 libssh2/1.10.1_DEV
>
> Zdenko
>
>
> ut 18. 10. 202
I am looking for some help with suggestions on getting tesseract to read
some tightly cropped numbers. Numbers range from 50-99.
I've tried suggestions from the tesseract improve image and various
different sizes, backgrounds, borders, contrast etc. but I am unable to
get it to read the numbe
). I
imagine they'd sell dark for the right price as well, though you may not
like that "right" price.
--
Brandon Martin
Mothic Technologies
317-565-1357 x7000
On 7/5/22 18:27, Glenn Kelley wrote:
I fully expect this to come down to someone needing to be an "engineer."
The term "Professional Engineer" is a protected term in all 50 US states
to my knowledge. It requires the qualifications and licensure you'd
expect with the typical path being ABET e
tfolio at this
point.
The XGS-PON ONTs are still about double the price of the GPON ONTs last
I checked.
--
Brandon Martin
users to migrate to semi-modern best practices in order to more
efficiently use their allocation. They've done this before with e.g.
reducing bandwidth limits on FM voice in the VHF/UHF "business bands".
--
Brandon Martin
mer" within your
RF receive mask, which is what I was getting at.
In this case, however, the system is basically a dumb radar, apparently,
so none of that is going to be present. The fact that a signal 250MHz
out of band can present meaningful issues is troubling nonetheless.
--
Brandon Martin
allocation does. Those users have been around for 35+ years
and are widespread and unlicensed (as they are receive only).
--
Brandon Martin
t only
moderate power and for essentially infinite duration in the scope of a
radar receiver. It would by no means be an ideal means to disable such
a system, but it does represent RF energy that the receiver needs to
contend with.
--
Brandon Martin
he other direction) is not sufficient to ensure
proper receiver isolation from unwanted signals.
--
Brandon Martin
cared. Now, it's a big deal to
try to replace them all, and it's made even worse by how difficult
changing anything in aviation is and how comparatively old and hence
simple (perhaps too simple) the radio altimeter RF physical layer
apparently is.
--
Brandon Martin
cast space) low- and mid-band frequencies for wider
area coverage at reduced speeds. Interference considerations,
especially high above the horizon (planes...) would be present for
potentially dozens of miles away.
--
Brandon Martin
quot; or not, apparently does need to be
upgraded to prevent detrimental interference to an important flight
safety and operations facility. A pause in deployment seems reasonable
in that light, though it would have been nice if folks could have gotten
this resolved sooner.
--
Brandon Martin
The Netgear GS108T is my typical go-to "not a dumb switch". 8 ports for
about $80.
Make sure you get the v3 if you want most of the modern IPv6 L2 features
(you also get some very limited L3 capabilities). The v2 lacks most of
them and is still readily available on the market.
On 1/12/22 4:15 PM, Josh Luthman wrote:
I would have to imagine any QOS/traffic shaping is done in the OMCI and
hence would probably be in the GPON spec, g.984. I would look there.
Just guessing it would hold true with XG/s/PON, NGPON, etc.
The way at least my gear (Adtran) works is that you
On 1/12/22 9:35 PM, Jay Hennigan wrote:
From what I've seen on the market, home router or "residential gateway" devices with built-in battery backup typically only provide backup for FXS style analog POTS services, not for data, wireless, etc.
This was definitely the case for the Verizon FiOS I
m link
at 1310nm and without going coherent, they are a potential option. When
I inquired with a manufacturer/rep (what appears to be the only one in
the world), it was almost as expensive as a coherent transponder on both
ends.
--
Brandon Martin
mean
the address space isn't in use.
The DoD uses a fair bit of the address space allocated to them on
networks that are not visible from the public Internet. Whether they
use it efficiently is, perhaps, another matter.
--
Brandon Martin
ESInets for
SIP for NG911 Does the group have any recommendations?
Where are you looking for the connectivity? Non-LEC carriers are often
pretty regional.
--
Brandon Martin
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Can anyone provide a sales contact at AT&T for Ehhernet transport in
Indiana/Illinois/Ohio?
Unicast replies welcome.
--
Brandon Martin
ss to the layer 3
features IIRC.
--
Brandon Martin
ouple hundred GHz or have frequent need
to add/drop it.
--
Brandon Martin
ity arrangements. Thankfully, demand for linear
video is rapidly dropping as people abandon it entirely or switch to
over-the-top alternatives.
My general "favorite" where someone does want to do open access is the
central split open PON model with ample excess fiber on both the
backhaul and customer legs, but it is situational of course.
--
Brandon Martin
u need.
If you've never used them, you might find the config language a bit
annoying in that it's more Yoda syntax than Cisco, but it's also more
consistent than Cisco (what isn't?), so it's got that going for it.
Documentation is alright. TAC is responsive to inquiries.
--
Brandon Martin
t users in many cases.
--
Brandon Martin
the lines of "you operate your network however you want".
Other things would fall under the same purview. For example "alternate root"
DNS hierarchies with extra TLDs or even TLDs used in contrast to ICANN
recommendations would have similar considerations.
--
Brandon Martin
e, anyway.
Not that I'd recommend it.
--
Brandon Martin
lots of little wiggles and can be a pain to maintain if you
have visibility into both levels of the equation, but it does seem to
work and is surprisingly performant.
See e.g. https://tips.graphica.com.au/nested-kvm/
--
Brandon Martin
n performance.
I would not recommend mixing and matching hypervisors (e.g. Xen on KVM
or vice-versa), though. I'm not even sure you can do so meaningfully,
though I bet someone's working on it.
--
Brandon Martin
with various specs AND don't want to or cannot use a
provider's API for that, I'm not sure why you'd want to if you didn't
have to for some crazy reason.
--
Brandon Martin
On 1/5/21 7:29 PM, Chris Adams wrote:
I don't know if an unsubscribed cell phone gets the emergency alerts (I
know you are supposed to be able to call 911 from any cell phone, even
if not carrying paid service). If so, that'd be another cheap way to
get alerts.
They pretty much universally sho
streaming device" these days without
that kind of separation of duties internally regardless of what actually runs
underneath the user-visible application. It's not that you couldn't but rather
that you wouldn't.
--
Brandon Martin
levant functionality.
I'll note that most mobile phones allow the user to turn off most
(though usually not all) emergency alerts. Non-OEM OS ROMs often go
further.
--
Brandon Martin
ad you mention.
Several GB of RAM is nothing for a modern server, of course. It sounds
like you'd probably run into other scaling issues before you hit memory
limitations needed to juggle legitimate TCP connection state.
--
Brandon Martin
t actually storing state
using techniques similar to syncookies and do so in a compatible manner?
I suspect no since you don't have control over your peers sequence
numbers, but then someone smarter than I came up with syncookies...
--
Brandon Martin
lement/replace with their own
location data. Devices which have access to Wi-Fi/Bluetooth beacon
location databases can largely do the same. This is almost guaranteed
to be more accurate AND more precise.
--
Brandon Martin
tery tech),
folks will get more serious about recycling the electrolyte.
--
Brandon Martin
nda prefer the IEEE versions, but most of my
vendors concentrate on the ITU/Bellcore stuff in North America, so
GPON/XGS-PON it is.
--
Brandon Martin
ical battery life is
important but almost implied these days. Must be able to nicely run Linux
(distro is unimportant).
--
Brandon Martin
on IRR. That is, they are not permissive and will assume
that, if there is an IRR object present for a prefix, that ONLY the
announcements matching that object should be accepted. This can lead to severe
reachability issues if not corrected.
--
Brandon Martin
is quite
a bit different. I also can't imagine they're actually overlaying
AT&T's fiber-to-the-prem network as, to my knowledge, AT&T does not
allow 3rd party access to it in any market.
--
Brandon Martin
r
"up to" 80km with them really pushing the link budget at that point.
Honestly, I'd be tempted to just suck it up and do a coherent solution,
though I admit it would probably be at least 2x the cost. You can
probably get a 200G carrier, though.
--
Brandon Martin
?
--
Brandon Martin
One of the BSDs has had it longer and may be more thoroughly
documented.
--
Brandon Martin
to try and get more entropy.
I hope they hash on L2 MAC, as well, but a pretty common scenario for an
L2 interconnect only has one MAC on each end of the link, so that
doesn't help much. They rallly don't want all your traffic ending
up on one side of a LAG.
--
Brandon Martin
t have any imminent shortage
of ASNs and don't need to be particularly stingy about allocating them
as long as a need is met.
--
Brandon Martin
s said, if you don't need full routes from them, they have a
VERY open peering policy, and that 100G port might be better suited to a
local IX where you can pick them up along with a bunch of other content
networks.
--
Brandon Martin
e major optical transport platform vendors not just
supporting it by heavily pushing it.
I really do hope it becomes a real product that I (as a smaller, local
island operator) can buy, but it just doesn't seem to be there yet at
least in my region.
--
Brandon Martin
ncing light
levels, etc. as you can usually just throw things straight into a
mux/demux on each end and rely on the power budget of the transceiver
itself, so that makes sense for cheap DCI.
--
Brandon Martin
the spectrum on a long-haul span or something.
--
Brandon Martin
I've been trying unsuccessfully for the past couple weeks to get in
touch with the sales folks at CyrusOne. E-mails and voicemails have
gone unreturned.
Anyone have a usable contact there or able to matchmake?
--
Brandon Martin
also a
lot bigger than many deployments are at least when they're new, and
these are questions you have to essentially answer "up front" in many cases.
--
Brandon Martin
interpreted the RFC! Then I can also have some
specific models to direct people toward along with "Or just look for
'RFC8585' on the box".
But, right now, I am aware of none.
--
Brandon Martin
ing useful will even work.", and that's
not a good way to sell service to the handful of generally outspoken
customers who do want to do things their own way.
--
Brandon Martin
ese modern transition mechanisms) that needs constant
updating and may not be easily available is not ideal.
Heck just having a real, complete list of supported features on the
model support page on their website would be an improvement...
--
Brandon Martin
,
though I haven't verified that it works. They're at least acknowledging
demand for it which is a nice step forward.
--
Brandon Martin
or exactly the reasons Bill alludes.
For a lot of networks, this can end up being just the OSC, but as
that's often not subject to the full photonic path, I'd likewise advise
against that being the case and to make sure you have at least some
fully "in band" traffic that can be monitored along both legs.
--
Brandon Martin
single stack access layer at scale, and of course the NAT
is stateful no matter what you do with this technique.
--
Brandon Martin
preferred CPE vendor is claiming 464XLAT
support now (though I've not tested it), but doesn't appear to even know what
MAP or LW4o6 are and certainly has expressed no plans to support it at least at
the sales engineer questionnaire level.
--
Brandon Martin
ience but not a lot of real-world
experience: "So, tell me about a particularly dicey interoperability
scenario you encountered while going for your CCIE? What steps did you
take to troubleshoot and either solve or work around it?" or similar.
--
Brandon Martin
eally like something
to point them to that will show them it's a "real thing". Getting rid
of state at the CGN as is (or can be, at least) necessary with 464XLAT
seems like a real boon while placing minimal additional burden on the CPE.
--
Brandon Martin
ing before the SDN craze...you just have to know what it is.
Reminds me of the early days of ".NET" at Microsoft. Everything was
".NET", and eventually it became an actual thing.
--
Brandon Martin
d as well that, even if your hiring
process doesn't demand them, others' will, and many people have a
standard-ish resume with application-specific cover letter.
--
Brandon Martin
integrated into a single box presumably because it's
cheaper for initial deployment than separate boxes for ONU and CPE
router/AP. No indication of those being affected in this notice, at
least that I could find.
--
Brandon Martin
t not configure them if you don't need them.
Are you married to Cisco? The 9200 is not a bad pizza box platform, but
you can definitely get comparable features and bandwidth cheaper (or
more bandwidth for the same price) from other folks.
--
Brandon Martin
ed aside from
applying them to the port itself, and they definitely won't do "BNG"
type functionality with PPPoE or tag-per-customer with shared L2
appearance at least not at any real scale.
--
Brandon Martin
rotection, find more glass. I'm not even
sure how you'd offer a protected "dark fiber" service without
encroaching on the ability of the subscriber to light it to their pleasing.
--
Brandon Martin
ivity from any of the cellular telematics providers
at the time. I don't know if this has changed. For our application,
this was fine, but for mixed vendor "IoT" devices, it would probably not
work out well.
--
Brandon Martin
the Wi-Fi
and NAT, and they generally "do the right thing" out of the box for most
folks.
--
Brandon Martin
I'm curious...
Is it part of the DOCSIS spec that the CMTS terminates L3, or can they
bridge to IEEE 802(.3) and delegate that to some other piece of gear?
I'm unfortunately not familiar with the MSO world much at all aside from
a little bit of L1.
--
Brandon Martin
available on their "business class" DOCSIS
product and is upcharged even then.
--
Brandon Martin
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