dual ring topology questions

RobFantini

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May 24, 2012
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Hello

I am trying to get a full understanding dual ring networks before using for corosync .

Question 1: how many hardware network interface ports are needed per node for a dual ring set up?


Best Regards,
Rob Fantini
 
Hi RobFantini
Question 1: how many hardware network interface ports are needed per node for a dual ring set up?
You need two ports per node for corosync with two rings.
One port for ring0 and the other for ring1.
 
I think you get misguided about the name "ring".
This has not to be a real ring network topology.
Normally you use common star network topology with a switch per ring.
If you want to make a real ring network topology you need 2 NICs per ring that means total 4 per node.
And you must set up your routing what is not so easy so I would use a star network topology.
 
I think you get misguided about the name "ring".
This has not to be a real ring network topology.
Normally you use common star network topology with a switch per ring.
If you want to make a real ring network topology you need 2 NICs per ring that means total 4 per node.
And you must set up your routing what is not so easy so I would use a star network topology.

OK I understand.

For now we'll use two corosync star networks. Each connected to a reliable switch.