Earlier quoted context omitted.
Crazy. My wife and I used 619 kWh last month
We were at 5MWh last month, so it’s all relative. Don’t feel bad.
That is impressive! Did you do that on a 200A 120/240V service?
What is your load? Ac?
25 Gigabit Linux internet router PC build
201–210 of 359 posts
Re: 25 Gigabit Linux internet router PC build
#202Earlier quoted context omitted.
That's not entirely true. SFP power consumption depends on the type of SFP. A 10Gbps DWDM SFP+ might draw 1.8W of power. The why for this is actually quite interesting: the lasers used in DWDM SFPs have much more stringent requirements for temperature stability to ensure the light emitted doesn't drift out of spec. In order to achieve that temperature stability, they use a built in peltier to pump heat away from the…
Except no one is using DWDM for homelabs, as it's usually used for longer distances. The peltier cooler is definitely cool, though.
True. On general principle I would recommend folks invest in single mode rather than multimode fiber for permanent installs, as the price delta on SFPs is low enough these days. Multimode is a complete pain as it needs to be upgraded for higher speeds every decade. If it's just a couple of patch cables in a home lab, it doesn't matter, but if it's run through a wall...
Re: 25 Gigabit Linux internet router PC build
#203I have a Unifi UDMP, which while I think is probably the best prosumer option right now, falls way short due to a PPPoE problem that limits fiber connections to under 500mb/s, and the lack of load balancing across multiple link networks (which I totally admit, is a first world problem). I am thinking about building my own, but then comes the maintaince of all of the hardware / software. For me that would be fine, but…
Odroid N2?
Re: 25 Gigabit Linux internet router PC build
#204I'm always amazed by people who don't bat an eye on the perspective of having a home server, sucking up electricity 24/7. In this case replacing a typical router (which consumes like a lightbulb), with a full-fledged PC (probably consuming like x100 the power). I guess some people around the world have quite cheap utility bills! For me, it's either a Raspberry Pi type of power consumption, or else a server that only…
When I was younger, 100W was a light bulb. We’ve come a long way. :-)
Re: 25 Gigabit Linux internet router PC build
#205I'm always amazed by people who don't bat an eye on the perspective of having a home server, sucking up electricity 24/7. In this case replacing a typical router (which consumes like a lightbulb), with a full-fledged PC (probably consuming like x100 the power). I guess some people around the world have quite cheap utility bills! For me, it's either a Raspberry Pi type of power consumption, or else a server that only…
I've used managed power strips for data center applications in the past. The strips have individually addressable power ports and a web interface, telnet, as well as SNMP support. They've been around for decades and are the solution to your problem of needing to remotely manage the power state of power hungry devices.
If you set your servers to always power on after power is restored you can control them with that device.
There's also Wake On Lan (WoL) support in a lot of systems, where you can use a correctly crafted "magic frame" to wake up any machine that received it.
Re: 25 Gigabit Linux internet router PC build
#206I have a Unifi UDMP, which while I think is probably the best prosumer option right now, falls way short due to a PPPoE problem that limits fiber connections to under 500mb/s, and the lack of load balancing across multiple link networks (which I totally admit, is a first world problem). I am thinking about building my own, but then comes the maintaince of all of the hardware / software. For me that would be fine, but…
Can you link or elaborate more on this PPPoE problem? i have a UDMP on the way, and I don't think I'll be affected by it with my simple network design, but also not sure.
Re: 25 Gigabit Linux internet router PC build
#207Earlier quoted context omitted.
That‘s a switch, not a router. Much simpler hardware. Here‘s a MikroTik Router with 28 Gbit/a throughput: https://mikrotik.com/product/CCR1036-8G-2SplusEM $1300 and up to 73W
That's a bit of an odd example to choose. This[0] has a $600 MSRP, with twelve 10Gbps ports and two 25Gbps ports. It's ~32W before you add the SFP+ modules, and upwards of 50W if you have all modules populated. In the benchmarks they list, this can provide somewhere on the order of 13Gbps to 40Gbps of routing, depending on exactly what you're doing. (Smaller packets will lower these numbers, but if you care about ban…
the benchmark you even link shows absolutely abysmal performance curves, dropping down into even half a gig perf for small packets single stream.
Re: 25 Gigabit Linux internet router PC build
#208Earlier quoted context omitted.
That's a bit of an odd example to choose. This[0] has a $600 MSRP, with twelve 10Gbps ports and two 25Gbps ports. It's ~32W before you add the SFP+ modules, and upwards of 50W if you have all modules populated. In the benchmarks they list, this can provide somewhere on the order of 13Gbps to 40Gbps of routing, depending on exactly what you're doing. (Smaller packets will lower these numbers, but if you care about ban…
the benchmark you even link shows absolutely abysmal performance curves, dropping down into even half a gig perf for small packets single stream.
Calling any benchmark "abysmal" requires a point of comparison, and you have provided none... so it doesn't really encourage good discussion. What's the point of your comment? It seems to just be a way of insulting someone else's product.
Which comparably priced router are you thinking of that has a "non-abysmal" performance curve for small packet bandwidth?
Re: 25 Gigabit Linux internet router PC build
#209Earlier quoted context omitted.
That‘s a switch, not a router. Much simpler hardware. Here‘s a MikroTik Router with 28 Gbit/a throughput: https://mikrotik.com/product/CCR1036-8G-2SplusEM $1300 and up to 73W
That's a bit of an odd example to choose. This[0] has a $600 MSRP, with twelve 10Gbps ports and two 25Gbps ports. It's ~32W before you add the SFP+ modules, and upwards of 50W if you have all modules populated. In the benchmarks they list, this can provide somewhere on the order of 13Gbps to 40Gbps of routing, depending on exactly what you're doing. (Smaller packets will lower these numbers, but if you care about ban…
Fair. It was the first router I found on their site with listed throughout >= 25 Gbit/s.