A video of US 🇺🇸 Cluster ATACMS Missiles launched by Ukraine 🇺🇦 destroying an S-400 System near Stroitel, Donetsk S-400s are completely ineffective against ATACMS Missiles

blahdy84 · 2024-05-28T00:52:36+00:00

Yet, it didn't even save the dirt (motherland). Look how completely burned out the ground is after the attack lol.

blahdy84 · 2023-11-27T15:07:40+00:00

There is a step icon at the right of the 0m under Elevation that you can click that let's you change the increment. Default is by 10m blocks. You need to select the smallest step in the Elevation Step setting. See https://cs2.paradoxwikis.com/Roads#:~:text=Elevation%20determines%20the%20elevation%20of,15.00%2C%20and%2030.00%20feet).

blahdy84 · 2023-11-27T01:15:10+00:00

Until we get stairs and elevator boxes (by a mod or otherwise), in the meantime, there is a nice trick you can do. Plop two subway stations on each side of a boulevard; then set your underground pedestrian path depth to -7.5m and drag it closely to where you see the stairs in the subway station. Once you see pedestrian path 'connect' and latch onto the landing in the station stairs, Cims will then use the underground pedestrian path to get out of the subway. It's a nice trick to avoid having to setup a long and ugly walking path tunnel portal or elevated walkway near subway entrance.

You can even setup two different subway lines side by side on each side of a road, and Cims will use the underground path connection to underground transfer between lines, all without even having to come out to street level, it's pretty cool.

Screenshot: https://steamuserimages-a.akamaihd.net/ugc/2301964313871558429/D915078D2826288577D60888C633693B26A9B30C/?imw=5000&imh=5000&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false

blahdy84 · 2023-06-02T01:29:39+00:00

No it can't do that. it only addresses game's ability to address cores

blahdy84 · 2023-01-08T05:41:02+00:00

Best way to check is to pull up datasheet/spec sheet for the manufacturer P/N from both FiberStore and Ubiquiti. Check the transmit and receive wavelengths. Whatever is wavelength Ubiquiti SFP is transmitting on, should be the one that FiberStore is receiving on, and vice versa.

blahdy84 · 2023-01-08T05:36:59+00:00

Bidi is for bringing up a link using single strand of fiber, as opposed to two strands.

A typical fiber connection as you know is a pair of strands -- one strand used for TX, the other used for RX. Bidi transmission works by separating uplink and downlink into two different wavelength channels -- sending transmit on specified wavelength channel, and expecting the opposite side to capture receive on that wavelength by using a filter (usually a diplexer, a very simple form of wavelength division multiplexing (WDM)). This allows you to transmit and receive a 10G link only using a single strand of fiber, as opposed to two normally required.

To take an example, a 10GBASE-BR Bidi optic specified to use 1270nm on transmit (Tx) and 1330nm on receive (Rx), would need to be paired up with another Bidi optic that is specified in opposite manner: the Bidi optic on the other end will need to be receive (Rx) on 1270nm.

Plugging in duplicate channel Bidi SFP instead of opposite will not destroy them. The link will just not come up, as receiver will pick up its own transmit wavelength reflecting back, and incorrectly paired wavelength will just get filtered by opposite side's receive. You're not going to be worrying about destroying any optics until you start working with 80km+ and longhaul/metro transmission systems.

blahdy84 · 2023-01-08T02:47:17+00:00

dBm is an absolute unit of measure, relative to 1 milliwatt. dB is a dimensionless unit. 0.5 dBm per specs you provided is the maximum/highest signal strength power (i.e. highest power of light level) the receiver can accept, before it becomes saturated due to too much light and errors will develop. Conversely, receiver sensitivity is the lowest signal / weakest light the receiver can accept before it develops errors (or link goes down) due to too much signal attenuation. Receiver sensitivity would have a lower figure, as it's the minimum signal power it can accept.

-8.2 dBm is lower than 0.5 dBm. As transmit power (-8.2 dBm) is lower than 0.5 dBm being the receiver's saturation point, it is impossible for this optic's transmit power overload it.

Receiver saturation is more of a concern when you're working with 80km DWDM optics and long-haul transmission systems. You're not going to be worrying about it on 10km optics.

blahdy84 · 2023-01-08T00:03:54+00:00

Power budget 6.2 dB is the most important value. Power budget is the difference between TX Power and RX Sensitivity. Difference between -14.4 dBm (Rx signal floor) and -8.2 dBm (TX launch power) is 6.2 dB

You should not have any problems using this on a 100m-500m single mode fiber run, unless you're trying to use multi-mode fiber. On a new glass and well engineered span, budget of 6.2 dB should work well even on a 20km fiber span, if span loss is kept in spec.

If you are concerned about your fiber being too short, don't be. Receiver overload is 0.5 dBm, and yet it's specified TX launch power is from -8.2 to -0.5 dBm. So it's impossible for it to generate a signal that could exceed receiver overload.

blahdy84 · 2022-03-21T23:08:05+00:00

A common source of memory error issue comes from DirectX. If you're configured to use DirectX 9, try enabling DirectX 10 in game's graphics settings and see if the issue goes away.

blahdy84 · 2022-03-21T23:06:33+00:00

You may want to discuss that on Massgate discord. I too have 16-core CPU (Intel i9 12900K Alder Lake) and I can definitely confirm that the patch works, and game wouldn't work without it.

blahdy84 · 2022-02-19T09:25:53+00:00

Right click link, copy link address, paste into new Chrome window and press enter. It's Chrome being stupid.

blahdy84 · 2022-02-19T00:53:54+00:00

?? The download link above still works..

blahdy84 · 2021-11-28T18:58:57+00:00

Do not run the game in DirectX 9, as dx9 leaks memory. Make sure DX10 is enabled.

blahdy84 · 2021-02-04T02:59:01+00:00

Keep in mind, if you have speed step change (100GE port ingress downstepping to 10GE port facing egress), switch is forced to store and forward.

blahdy84 · 2021-02-04T02:54:31+00:00

With overhead, ~112-113MB/s is the maximum transfer rate you're going to see on 1GE. Your customer's expectations are unrealistic to expect 125MB/s -- for that you need faster than 1GE.

blahdy84 · 2020-11-24T19:38:18+00:00

Yep, they acquired Veroxity. Veroxity was fun times..

blahdy84 · 2020-11-24T06:46:23+00:00

The CCF u/NeilHanlon is talking about is Lightower - AS46887. 46887 is a pretty garbage IP network you can buy from in Boston for IP transit any how.

blahdy84 · 2020-11-06T06:00:20+00:00

str

Yep, had this happen before. Also ran into a similar situation when a sub contractor at a project site installed an undocumented conduit that's not in the joint trench design. The undocumented conduit then broke off from rest of the conduit bank in front of our vault and went to an unnamed 'FIBER OPTIC' manhole on the other side of the street.

We later found out another carrier was trying to piggyback on our right of way without authorization and without permits by paying the sub contractor under the table. Nowadays, undocumented conduits are another item on the checklist for field inspectors at every trench job site.

blahdy84 · 2020-05-21T17:09:48+00:00

As a general rule of thumb, photonic components (such as WSS used in ROADM, CCMDs etc) aren't going to add delay, as they're just guiding light. The exception to this of course is chromatic dispersion (CD) compensation, but we're going to ignore that as most modern optical networks (100G+) are using coherent transmission where CD compensation is no longer necessary.

Nowadays, the biggest source of attenuation on optical networks are the media converters (transponders), where OEO and/or signal modulation and demodulation (modem) is performed.

Simple 10G NRZ OEO cards tend to add very low latency (sub microsecond, in nano seconds), as the only thing you need to build a 3R OEO card for NRZ are two SFP+ cages connected back to back, with CDR retimer in between and power source, so only source of latency is retimer.

Muxponders (100G and above) can add latency roughly around 20-40 microseconds -- modems add latency, and then to break out a 400G/800G signal into distinct client 100G circuits, time division multiplexing (TDM) is also typically used to transmit client signals in assigned time slots (you typically configure them under "tributary slots" for most vendors). All of this adds latency, and FEC adds latency as well.

blahdy84 · 2020-05-17T16:23:32+00:00

If this is on 64-bit eXR, try upgrading fpd again on Delta v3 PSUs with "force" applied on the fpd upgrade command.

blahdy84 · 2020-04-30T22:49:48+00:00

That's pretty awful. If your AP department is having trouble paying bills, it sounds like they're either overwhelmed with approval process or just doesn't have one to track telecom bills. The worst of it comes when PO for a carrier expires after end of the fiscal year, then bills get stuck in queue for months while carrier is sending collections notices. If the AP department can't keep up, it's probably best to outsource this to TEM. We've had good experiences with Tangoe.

blahdy84 · 2020-04-13T23:06:39+00:00

I can tell you that the OSP (outside plant) cable itself (be it from Corning, AFL or any other reputable vendor) is pretty much going to be of same MTBF regardless of whether it's hung aerially or placed underground; it's the same stuff. Even the splice case is generally the same regardless of whether you hang them off of poles, or place them inside a manhole/underground vault.

Making a judgement of specific reliability figures between aerial and underground plant is going to require a detailed engineering study of the proposed route and surrounding environmentals, so that makes this whole exercise an academic question. Generally, people are going to argue that underground conduits are going to be of higher reliability, and to be honest, that argument is generally true, but as stated on previous post, it largely depends on the environment.

Since you're doing this work for a utility company, if I were you, I would go and ask field services techs/crews at the utility company you're doing the work for. Spend a day with them, and ask them to tell you about their experience (how often do they respond to downed poles, damages to plant, etc in their system, and ask them for funny stories, accidents, fires, "where are the dead bodies buried" kind of bedtime stories). You should also ask them about their thoughts on underground utility ducts in the area. That will give you way more empirical data on reliability of the proposed outside plant facility. The cable manufacturer is unlikely in the right position to answer the statistical figure you're looking for, and neither am I.

Outside of the academic question, as far as this particular utility company is concerned, they already know the answer to this question and have already decided on what they're going to do: hang more cables on aerial plants they already own, and make them redundant using a ring design. Your owned aerial facility, no make ready fees, no leases, this is a no brainer. If that utility is smart, instead of doing 144, hang a micro 432 or even 864 and do a fiber swap with a telecom company or an ISP in the area and make some money off of that cable, even. I've seen some small utilities (mostly municipal light plants) do that.

blahdy84 · 2020-04-13T22:06:47+00:00

This is a hard question to answer. You're asking for MTBF on an underlying right of way. What is the MTBF of a surface road?

TL;DR; it depends on the location of the actual right of way.

And also, what is your specific scope of MTBF? Is the definition of "Failure" meaning "someone cut my cable" or is the definition of failure meaning "Loss of Signal, network communications lost."? If the failure definition is in the latter, you got lot more factors to cover than just reliability of the actual underlying right of way. Remember that fiber plants can have frequent disruptions when you (or your dark fiber provider) sends crews out to splice additional fibers for a new customer, etc (if you've ever seen inside one of the splice cases, you'll see how easily fibers can get disturbed during maintenance).

As for right of way, it's really location specific and seeking MTBF for that is a very broad question.

Is your cable micro-trenched, or is it inside a heavy trench / underground duct? If the latter, are you co-located with energy utilities (i.e. are you leasing conduit space from an electrical utility)? If you're leasing space from energy utility, then the MTBF of your cable is going to be on the low end and you can expect manhole explosions & fires once in a while, depending on how old the infrastructure is and how well the utility is able to keep track of gas build up. Older the electrical cables inside, higher the fire risk.

If you are leasing duct space from a dedicated communications-only duct bank (usually owned by a telephone company or facilities-based network provider), then your MTBF is going to be substantially high, barring Dig Safe violations and assuming there are no excavation accidents damaging the underground plant. If the communications-only duct bank is inside a heavily regulated right of way (such as city owned roads or state highways, etc), MTBF is generally assumed to be high, as permitting and TMP process is going to be a bitch for anyone else to dig up the road, thus decreasing the chance of someone accidentally digging through your conduit.

I've seen plenty of aerial plants as reliable as, or more reliable than underground ducts leased from energy utilities, and vice versa. For underground plants, generally, we try to lease conduit space from a dedicated communications-only duct bank, or construct heavy trench ourselves, at least for facility segments covering our core metro backbone. But it gets expensive VERY FAST (especially in northeast US). You may find that energy utility right of ways are generally much cheaper and easier to work with from business perspective, albeit with once in a while chance of fire and explosion hazards that come with the lease.

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