I'm currently in a discussion about how LACP and load balancing is working.
Assume, there are two servers, both using 4 nics (1Gbit) and they are connected to the same switch with aggregated Links.
Which "statements" are true?
- Each server could theoretically deliver 4 Gbit of data, if there are enough clients requesting data (at least one per link)
- The servers can talk to each other with 4Gbit/s.
- The servers can talk to each other with 1Gbit/s, because the algortihms to balance traffic will always choose the same NIC out of the 4 available links.
- When using Round-Robin, the servers can communicate at a speed > 1GBit/s, but will encounter out-of-order-packets, which needs to be resorted and at the end resulting in a much lower transfer speed than 4GB/s.
- A connection between hostA and hostB will never be faster than the speed of a single link, even if you are grouping 8 or more nics.
cheers, dognose