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10Gb/s Ethernet: switching to a Broadcom SFP+ module

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Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#71

Post by CamperBob2 »

whalesalad wrote: post #48
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

You cannot do PoE over fiber.

Hold my laser and watch this (with remaining eye)

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#72

Post by protocolture »

Tuna-Fish wrote: post #11
mittensc wrote: post #5

why not use fiber directly and use whatever sfp for much cheaper without worry of heat

For a lot of people, because they already have copper in the walls. You are correct that 10GBASE-T really shouldn't be the default choice, fiber and DAC both have advantages over it. But compatibility is important, and there are a lot of situations where 10GBASE-T is just more convenient.

>because they already have copper in the walls.

Makes a decent draw wire.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#73

Post by CobaltFire »

Keyframe wrote: post #52
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

I did just that relatively recently in a house we bought. OS2 single mode duplex throughout the house, all converging to a trunk which is available in three locations for equipment. It's basically future proof, but also has its own well, things. You can't really plug into a duplex (I wish though), you have to put a small switch to it with SFP+ or 28 or whatever the speed you want. Higher speed switches are also a tad…

Finishing up the same thing. 2x OS2 pairs with 2x CAT-6A to each drop, all coming together to the network closet.

Gives me fiber for bandwidth and copper for PoE. Figured it was smarter to do both than compromise to either one, and surprisingly the fiber was cheaper than the copper to pull.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#74

Post by parl_match »

drnick1 wrote: post #32
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

What for? Ethernet is what you ultimately need, because that is what devices such as PCs and WiFi access points use. I experimented with SFP for a while, but ultimately concluded that it isn't worth the effort to add SFP cards to PCs now that that low-power 10G Ethernet chips like the RTL8127 are available. High-end motherboards already have 10G Ethernet and soon lower-end models will too. 2.5G is practically standar…

> What for? Ethernet is what you ultimately need

Is answered in the comment you responded to:

> because the off ramp is clearly happening for ethernet at 10gbit/s

As for

> because that is what devices such as PCs and WiFi access points use

We are looking to the future. If you're putting stuff in the walls, then you should try to target something that will be adequate both today, and in 10 years from now.

Increasingly, prosumer stuff is including an SFP port. High end PCs will be shipping it in the near future, as well. And, while low-power chips are coming out, the simple fact is that physics are getting in the way.

I do think that the average home won't need more than 2.5gbps, pretty much indefinitely (an 8k video at "bluray quality" is about at most 5% of that bandwidth). But if you have any desire of going past 10gbps, Ethernet is not going to cut it.

And yes, before you ask, there is a 25gbase-t standard. Maximum distance: 30m (100ft). 100ft from panel to panel in a house? Oof.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#75

Post by denkmoon »

drnick1 wrote: post #32
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

What for? Ethernet is what you ultimately need, because that is what devices such as PCs and WiFi access points use. I experimented with SFP for a while, but ultimately concluded that it isn't worth the effort to add SFP cards to PCs now that that low-power 10G Ethernet chips like the RTL8127 are available. High-end motherboards already have 10G Ethernet and soon lower-end models will too. 2.5G is practically standar…

Yes, but 10G really is the limit. I'll eat my boiled boots if 25GbE copper becomes anything you could remotely consider "common".

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#76

Post by andwur »

tombert wrote: post #57
myrandomcomment wrote: post #56

Earlier quoted context omitted.

What standard of cable? When I rewired I ran Cat6a everywhere. My longest 10G run is ~70 meters and works just fine. Anytime I had a link issue it was because I did not do the best job in termination on the keystone jack. To be clear the Cat6a is thicker than Cat6 and harder to work with. It makes termination a bit more tricky.

I use Cat 8. The cables themselves don't get too hot, but the dongles themselves seem to get really hot. I'm assuming that's a known issue given the size of the heatsinks on them.

Unfortunately that's non-DAC copper cabling life it seems. They build them to work at the rated speed at the maximum rated distance (on the transceiver, not the spec) and none of them appear to link train to reduce the power output over shorter runs.

If you use a DAC they usually run cool, and optical is even cooler.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#77

Post by fooblaster »

Keyframe wrote: post #52
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

I did just that relatively recently in a house we bought. OS2 single mode duplex throughout the house, all converging to a trunk which is available in three locations for equipment. It's basically future proof, but also has its own well, things. You can't really plug into a duplex (I wish though), you have to put a small switch to it with SFP+ or 28 or whatever the speed you want. Higher speed switches are also a tad…

So tell me... how much did you spend? Is fiber doable without insane money.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#78

Post by tempest_ »

denkmoon wrote: post #75
drnick1 wrote: post #32

Earlier quoted context omitted.

What for? Ethernet is what you ultimately need, because that is what devices such as PCs and WiFi access points use. I experimented with SFP for a while, but ultimately concluded that it isn't worth the effort to add SFP cards to PCs now that that low-power 10G Ethernet chips like the RTL8127 are available. High-end motherboards already have 10G Ethernet and soon lower-end models will too. 2.5G is practically standar…

Yes, but 10G really is the limit. I'll eat my boiled boots if 25GbE copper becomes anything you could remotely consider "common".

I mean.. cat8 already exists but it will never be common because most people who dont make home networking a hobby just use wifi.

Hell many many people now a days own only a tablet and phone and no desktop/laptop at all.

Someone else in this thread mentioned motherboards with SFP ports on them and I cant believe that will ever be common because people can barely handle the many flavours of cables using USB C, how are they going to manage the mishmash of transceivers that only like specific brands and the DAC cables that may or may not work depending on how they feel that day.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#79

Post by throwaway85825 »

PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

Fiber makes a lot of sense for data but you still need a lot of copper for PoE and iot devices.

Re: 10Gb/s Ethernet: switching to a Broadcom SFP+ module

#80

Post by throwaway85825 »

Hasz wrote: post #31
PaulKeeble wrote: post #27

I feel like we have moved into the era now where if you were putting cabling in the walls for networking you should be choosing fibre now. Not necessarily because we are definitely at the stage where the home needs it, but because the off ramp is clearly happening for ethernet at 10gbit/s and its really high consumption and heat. Switching to fibre after 2.5gbit/s seems like the thing to do now and plenty of us now h…

you should be putting in conduit -- either smurf tube, emt, sch40, or similar. can pull whatever, and more importantly, if a cable is damaged by an overly zealous gorilla during installation, it can easily be fixed and replaced.

I wish conduit was a requirement for new construction.
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