How to properly aggregate switches?

Question

Iron

Good afternoon :)
I have 6 2960 switches on board. I
use EtherChannel technology.

I don’t quite understand how this scheme will work if all chanell-groups have 1 mode on.
I understand that I get 400 speeds :) But I don't see the difference :)
And did I do it right?
Or you need to scatter the groups like this:

Answer 1

I suggest to look at:
1. How is balancing configured?
2. How was the speed measured?
These questions are related, in fact: in order to understand which LAG port to put an Ethernet frame into, the switch calculates a hash function from the frame fields selected during configuration and takes the remainder of the hash divided by the number of links in the LAG.
By default, as a rule, the hash is calculated from the Source MAC + Destination MAC.
Also, you can usually manually enable the use for hash calculation:
- Source ip / Destination ip
- Source port / Destination port
In practice, this means that:
1. The more _different_ MAC / ip addresses pass through the LAG, the traffic is more evenly distributed there
2. But the established TCP connection will not “smear” over the links, and when, for example, uploading a file via FTP, the speed will still rest on the speed of a single link, even if there are at least eight of them