4 ms·

I have gigabit fiber and none of this is an issue. VLAN hopping is only possible due to misconfiguration. I'd like to be proven otherwise if that's not the cas

I have gigabit fiber and none of this is an issue. VLAN hopping is only possible due to misconfiguration. I'd like to be proven otherwise if that's not the case. VLANs are used EVERYWHERE where it matters. And no, the single port is absolutely not a bottleneck because the port is full-duplex.

estimator7292 7mo ago
What happens if one node on your network is downloading at 1Gbit and another is uploading at 1Gbit? Both get 500Mbit. Bottleneck.
- gruez 7mo ago
  That's going to be super rare. If it's just LAN traffic it shouldn't hit your router at all and you won't have the bottleneck issue. The actual cases would need to be quite contrived, like you're backing up your media library at the same time you're updating cod warzone.
  - simoncion 7mo ago
    > The actual cases would need to be quite contrived... As someone who works a programming job from home, I can tell you that the cases are not at all contrived. I've also heard from folks who have lots of roommates (whether or not those roommates are their swarm of children) that heavy simultaneous upload and download traffic is very common. You can get away with a router that has a single physical port. It's generally just easier and better to have more than one physical port... and even 10gbit-capable ethernet ports are pretty damn cheap. (I can get two 10gbit ports for about the same price as two 1gbit ports... ~30 USD.)
icedchai 7mo ago
I agree VLAN hopping is not possible without misconfiguration but it still is a "concern" for some. I also make extensive use of VLANs on my home network. If you're trying to push close to a gigabit up and down simultaneously that single port will become a bottleneck. I agree for most typical use cases it is not a concern.
tuetuopay 7mo ago
The bottleneck exists, but is a non-issue for most home use as most consumer connections are wildly asymmetric, usually biased towards download.

estimator7292 7mo ago

What happens if one node on your network is downloading at 1Gbit and another is uploading at 1Gbit? Both get 500Mbit. Bottleneck.

gruez 7mo ago
That's going to be super rare. If it's just LAN traffic it shouldn't hit your router at all and you won't have the bottleneck issue. The actual cases would need to be quite contrived, like you're backing up your media library at the same time you're updating cod warzone.
- simoncion 7mo ago
  > The actual cases would need to be quite contrived... As someone who works a programming job from home, I can tell you that the cases are not at all contrived. I've also heard from folks who have lots of roommates (whether or not those roommates are their swarm of children) that heavy simultaneous upload and download traffic is very common. You can get away with a router that has a single physical port. It's generally just easier and better to have more than one physical port... and even 10gbit-capable ethernet ports are pretty damn cheap. (I can get two 10gbit ports for about the same price as two 1gbit ports... ~30 USD.)

icedchai 7mo ago

I agree VLAN hopping is not possible without misconfiguration but it still is a "concern" for some. I also make extensive use of VLANs on my home network. If you're trying to push close to a gigabit up and down simultaneously that single port will become a bottleneck. I agree for most typical use cases it is not a concern.

tuetuopay 7mo ago

The bottleneck exists, but is a non-issue for most home use as most consumer connections are wildly asymmetric, usually biased towards download.