Good evening,
In our new build, we plan to install two physically separate switches: one on the ground floor and the other on the upper floor.
Until now, I thought I would simply connect the two with the standard CAT cable that I have also run to the outlets.
Now I’ve come across the terms SFP and SFP+.
The two switches I want to use have these SFP ports.
My questions:
- What are SFP and SFP+?
- Why should one use them? Do they enable faster connection between the two devices?
- The two switches I want to use have these SFP ports. Do I just need the appropriate SFP cable, and it will work?
I’ve already searched online but haven’t really figured it out…
Thank you!
In our new build, we plan to install two physically separate switches: one on the ground floor and the other on the upper floor.
Until now, I thought I would simply connect the two with the standard CAT cable that I have also run to the outlets.
Now I’ve come across the terms SFP and SFP+.
The two switches I want to use have these SFP ports.
My questions:
- What are SFP and SFP+?
- Why should one use them? Do they enable faster connection between the two devices?
- The two switches I want to use have these SFP ports. Do I just need the appropriate SFP cable, and it will work?
I’ve already searched online but haven’t really figured it out…
Thank you!
WiFi with more than 1 Gbps??? But not full duplex, so significantly slower even with just one client. We are not talking about lab prototypes or products not yet available on the market. To my knowledge, there is no WiFi faster than a 1 Gbps (1 gigabit per second) wired Ethernet connection.
rick2018 schrieb:
Wi-Fi with more than 1 Gbit???
But not full duplex, so it’s significantly slower even with just one client.
We’re not talking about lab setups or products not yet available on the market.
I’m not aware of any Wi-Fi that’s faster than a 1 Gbit wired connection. I said theoretically—mainly to emphasize that 10 Gbit is no longer rocket science nowadays. The Flex HD is specified at 1733 Mbit/s.
opalau schrieb:
Most devices connected to the switches will never fully utilize 1 Gbps, that’s clear. That’s why it’s a waste of money to invest in that now.
opalau schrieb:
But even for home users, there are many cases where 1 Gbps is frustratingly slow. Whether it’s simple file transfers, backups, or working with large amounts of data over the network. At 100 MB/s (400 Mbps) this is often impractical, but at 500–600 MB/s (2–2.4 Gbps) it’s a different story. Why is that impractical? Even our customers’ file servers are connected with dual 10 Gbps links, and thousands of users work on them simultaneously.
Why would I buy hardware (servers + hard drives) that can handle 500–600 MB/s (2–2.4 Gbps) throughput if my end devices are connected at 100 Mbps (Wi-Fi) or 1 Gbps (wired)?
Yes, that speed will be needed eventually, but I still think switches will be hopelessly outdated by then. So just install CAT-7 cables and you’re good. You can always upgrade to 10 Gbps later. People who don’t understand which SFP modules or fiber optic cables they need will face big problems in case of failures. Why does it have to be so complicated when it can be simple?
J
JoachimG.26 May 2020 09:22Wifi 6 (AX) will clearly deliver speeds well above 1 Gbit/s. This will require connecting the access points via multigigabit switches.
Of course, one could argue that such bandwidth is not necessary for residential use. However, I know at least a handful of people for whom the 1 Gbit/s connection between floors was insufficient. Often the NAS (with 2 x 1 Gbit/s) was located in the basement. All devices back up to it, the TV streams from there, and so on.
And yes, it is possible to achieve 40Gbe over copper for short distances... but it is more expensive than using two multimode SFP+ modules and some fiber optic cable.
Of course, one could argue that such bandwidth is not necessary for residential use. However, I know at least a handful of people for whom the 1 Gbit/s connection between floors was insufficient. Often the NAS (with 2 x 1 Gbit/s) was located in the basement. All devices back up to it, the TV streams from there, and so on.
And yes, it is possible to achieve 40Gbe over copper for short distances... but it is more expensive than using two multimode SFP+ modules and some fiber optic cable.
FloHB123 schrieb:
That’s why investing in it now is a waste of money. I said "most." If you connect the critical path, where you want more than 100MB/s, with 10 Gbit, it’s not a waste of money. (And in my opinion, it’s quite affordable if you get a small 10 Gbit switch for the important devices.)
FloHB123 schrieb:
Why should I buy hardware (server + hard drives) that can handle 500-600MB/s throughput when my end devices are connected with 100 Mbit (Wi-Fi) or 1 Gbit (wired)??? Of course, I connect all the end devices with 10 Gbit! Nowadays, it’s not a significant investment at all for NAS, desktop PCs, and laptops.
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