Now want to do a only a line to send in the flow of data
But through the hub or XXX technology or hardware through the chaos model retrieval broadcast packets
To achieve the effect of data replication
Namely three machines A, B, C three machines at the hub
A transfer to B C rip broadcast packets
Let B, C can also receive A packet to copy from the effect of packet
But two points to achieve redundancy is bound to the hub
So each hub * 2 PCS will have two interfaces to connect
But limited is A sends A packet can't only send two subcontract to B at the same time, the C
In order to simulate A is outside the machine
But the B, C is original we want to do is redundant mechanism
That how can A send packets at the same time give two hub?

I now think of only two network CARDS are sent to the machine two hub
And the hub with a network route connected to each other again
Then A, B, C two network CARDS for A set of bonding
This might can let agreed time is only one network now closed to send packet
And to achieve the effect of redundancy
But I don't know if you have any questions just ideas at present stage

Or you have better ideas or better hardware recommendations technology, etc.
Hope everyone can help
Thank you for your attention