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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

#31

Post by Hasz »

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.

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

#32

Post by drnick1 »

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 standard already.

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

#33

Post by Havoc »

poisonborz wrote: post #19

Cheap, low-heat 10G copper is already here. RTL8127 NIC is under $50, $200 nets you a quality 4x switch (CRS304-4XG-IN).

I've got a mix of both running here and definitely prefer the SFP+ part of the world. Couple of neat tricks it enables like the new "invisible" fiber - looks the same like fishing line basically. Unless you're 30cm away and actively looking you can't see it.

Replaced a wifi bridge that way...30m run across multiple rooms & hallway...zero drilling.

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

#34

Post by iknowstuff »

tcdent wrote: post #18

If you are implementing 10 GBE at distances less than 5-7 m, I highly recommend standardizing on DAC cabling. It removes the need for these kinds of conversions that create these kinds of heat signatures.

Wish apartments would come with those

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

#35

Post by drnick1 »

poisonborz wrote: post #19

Cheap, low-heat 10G copper is already here. RTL8127 NIC is under $50, $200 nets you a quality 4x switch (CRS304-4XG-IN).

I wish multiple-port 10G PCIe cards with this chip were available. I would immediately upgrade by Debian router from 2.5G to 10G. At the very least I would need a dual NIC.

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

#37

Post by thefz »

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…

Ever ran a single mode bidi fibre in a conduit? Push a wire puller, cleave and terminate ends, done. Zero effort unlike pulling a jacketed CAT7 cable, zero worries from electrical interference too, future proofing up to 40GBps. I ran double strands in my house so in case one breaks, there's another.

The floors where native fibre is not needed have a cheap ethernet media converter from fs.com, everything else (3 floor switches) are interconnected with 10Gbps SFP+ modules and 2.5G ethernet for the hosts.

All done thanks to the great https://michael.stapelberg.ch/posts/2020-08-09-fiber-link-ho...

(if you are reading this, I owe you several beers)

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

#38

Post by simoncion »

nubinetwork wrote: post #12
mittensc wrote: post #5

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

DAC cables can get expensive, and nobody knows what to buy when it comes to fiber, unless you're running entire spools of the stuff inside buildings... OM3/OM4/OM5? Single mode/Multi mode? LC/SC? Regular people don't know this stuff...

> Regular people don't know this stuff...

Regular people don't know whether to get Cat5, Cat5e, Cat6, or Cat7. So... yeah.

> ...OM3/OM4/OM5? Single mode/Multi mode? LC/SC?...

My answer is OM4, Multi-mode [0], LC. OM3, 4, and 5 will all work at 10gbit for any run you'd expect to make in most houses. I chose cable grade based on what was in stock at the local store. I chose connector type based on what fit into my NICs. I went with multi-mode because it was cheaper than single-mode and I wasn't going to be making multi-km runs.

[0] That's what the "M" in in the cable designation means.

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

#39

Post by [deleted] »

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…

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