Gigabit Network Tweaking...need suggestions

SCORPION6969 · Post by **SCORPION6969** » Sat Oct 22, 2016 9:19 pm

I have a Gigabit Network...Computers>Gigabit Switch>Cisco 2620xm Router

(Jumbo Frames enabled)

I have ALL Intel Gigabit Adapters I350T2V2

I know the TCPOptimizer is for tweaking to the internet...

But do any of these "tweaks" apply to a network??

Vadi · Post by **Vadi** » Sat Oct 22, 2016 11:58 pm

What a reason you use the Jumbo frames?

Post by **Philip** » Sun Oct 23, 2016 9:55 am

Yes, some of the tweaks apply to LANs as well. If you'd like to expand beyond what the Optimizer covers for LANs, you may also want to check this article: http://www.speedguide.net/articles/netw ... ation-3449

Vadi, jumbo frames are very useful in Gigabit networks for reducing TCP/IP overhead and CPU utilization on switches/routers, they often double the throughput and halve the CPU utilization when you transfer large files locally.

Vadi · Post by **Vadi** » Sun Oct 23, 2016 8:59 pm

ok and what's happened when you try to transfer large files to Internet?
Router's CPU is trying to cut big frames and it takes all of your CPU?

Or you know some ISPs who works with jumbo frame?

Post by **Philip** » Mon Oct 24, 2016 6:49 am

Yes, some fragmentation of frames occurs when communicating over the Internet, but most modern routers should be able to deal with it without issues. DSL MTU (1492 max) is often different than LAN MTU (1500 bytes) as well.