Gigabit speed question

[PQRCo]

Hi. Hopefully a simple question. I have a 8 port gigabit unmanaged switch with a few computers with gigabit ports and am choosing a router (currently trying Netgear UTM25 but it doesn't seem to support VPN via iPhone). If the router only has 100MB ports, will traffic on the switch still work at gigabit speed between the connected computers? Or does the router become a bottleneck since its managing the IPs, etc.?

Thanks for your help!

 

[msl]

Gigabit devices connected to the gigabit switch be able to talk to each other at gigabit speeds, regardless of the router or any other devices you connect.

 

[sims]

@msl: i am also interested in this answer.
just to confirm - you are saying that
gigabit devices connected to gigabit switch should be able to talk to each other at gigabit speeds.

the should is missing in your reply and left me 10% uncertain of the answer

 

[occamsrazor]

just to confirm - you are saying that
gigabit devices connected to gigabit switch should be able to talk to each other at gigabit speeds.

Correct, I use similar setup. A 100mb wireless router, connected by one single ethernet cable to Gigabit switch, which in turn is connected to all my devices. Transfers from one device to another go at Gigabit speeds.

 

[sims]

Correct, I use similar setup. A 100mb wireless router, connected by one single ethernet cable to Gigabit switch, which in turn is connected to all my devices. Transfers from one device to another go at Gigabit speeds.

Thanks! Now I need to get this going!

 

[wdi]

Hello, I have another question that goes under the same topic (sort of).

Short version:

Are all gigabit routers/switches equally fast in a LAN-LAN scenario?

Long version:

Let's say, I have two PCs with gigabit NICs and I want to connect them through a wireless N / gigabit router. The PCs will be connected to the device's "gigabit" LAN ports.

I don't see this benchmarked in SNB's router etc. reviews, so I can only assume the following: given that there are no other bottlenecks (slow NICs/HDDs etc.), all gigabit routers/switches are able work at or near 1000 megabits per second (and not at max 600 Mbps, for example). Is this assumption correct? I don't need to worry about the device's "gigabit performance"? Is it always 100% gigabit?

 

[tipstir]

Hello, I have another question that goes under the same topic (sort of).

Short version:

Are all gigabit routers/switches equally fast in a LAN-LAN scenario?

Long version:

Let's say, I have two PCs with gigabit NICs and I want to connect them through a wireless N / gigabit router. The PCs will be connected to the device's "gigabit" LAN ports.

I don't see this benchmarked in SNB's router etc. reviews, so I can only assume the following: given that there are no other bottlenecks (slow NICs/HDDs etc.), all gigabit routers/switches are able work at or near 1000 megabits per second (and not at max 600 Mbps, for example). Is this assumption correct? I don't need to worry about the device's "gigabit performance"? Is it always 100% gigabit?

10/100 ports are not the same as 10/100/1000 in routing packets. If the devices are 100mbps then the 10/100 would be enough. But 100mbps in a 10/100 won't be able to give you full 100mbps throughput. That's why it's better to just buy the 10/100/1000mbps routers wireless or wired. Then you can rest a sure that the throughput will be greater than 10/100.

Again fellows: 10/100mbps = 6/60mbps and 10/100/1000mbps = 6/60/600(700)mbps on average

Also remember not all routers throughputs are not equal. That's why you need SNB to tell you the truth about these ports speeds. Even with Cisco Catalyst Switches 24/48-bit Gig or Fast have the same methodology.

New 10Gig Switches 5-8Gbps depending on the manufacturer.

If you just going to send data in Gig to another Gig device then a good Gig switch can be use. But still the backbone the router is DHCP if the 10/100 ports are lower in throughput thus data going through them won't be the same on faster Gig routing. Best you all test and see if you're happy with the results. I've done enough testing to know I won't buy another 10/100 router or switch ever again.

Case close!

 

[thiggins]

Are all gigabit routers/switches equally fast in a LAN-LAN scenario?

Short answer: Yes.

Longer answer: Gigabit technology is well developed, with performance "baked into" the silicon switch chips. We don't test LAN to LAN switching because:
1) finding any real difference would take very expensive test equipment that we don't have access to and

2) Any differences would be so slight that they would not be seen in real life, especially with small port count and with the traffic levels you'd seen in a home or even small office.

In order to approach Gigabit speeds, however, your computers will need to have Ethernet interfaces with PCI-e bus connections. Most all current-generation computers do. Older machines might not. Even then, speeds you measure will be closer to 600 - 700 Mbps than 1000 Mbps. This will still provide a significant throughput gain over 100 Mbps Ethernet.

 

[wdi]

Alright then! Thanks for your answers.

 

[tipstir]

Alright then! Thanks for your answers.

You might find this useful?
www.intel.com/assets/pdf/whitepaper/mesh_pcie_whitepaper.pdf