Switches, Hubs, and Modems
cancel
Showing results for 
Search instead for 
Did you mean: 

1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

SOLVED
Go to solution
cko015
Occasional Contributor

1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

I have a general throughput question, if I have a 1 Gbps full duplex link, that means that I can send 1 Gbps and receive 1 Gbps, so does this mean I have a maximum of 2Gb of data travelling per second as long as I don't expect to exceed 1G in each direction? Or is it less?

Also the same for T1 full? Does this mean 1.54Mbps in both directions at a time, so this is 3Mbps maximum?
4 REPLIES
Cameron Todd
Regular Advisor

Re: 1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

I don't know what T1 is, but I believe your supposition is correct about 1Gbps full duplex ethernet being 1 in each direction at the same time, as long as your switch hardware can support full wire-speed processing at the ports.
Matt Hobbs
Honored Contributor

Re: 1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

It is the same for the T1, 1.54Mbps full duplex, both directions is ~3Mbps
rick jones
Honored Contributor
Solution

Re: 1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

the theory says yes. 1gbit in each direction will and end-system at least will depend heavily on the I/O bus and cpu "oomph" in the system
there is no rest for the wicked yet the virtuous have no pillows
Sergej Gurenko
Trusted Contributor

Re: 1Gbps full duplex = 2 Gigs of data (1Gig in each direction)?

This question is about marketing vs technical bandwidth calculation. Depending from the situation you can count you like mostly. :)