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Old 10-17-2016, 08:57 AM   #1
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Linux Bonding Driver and the OSI model

Hi all,

I've had some conceptual wonderings about the Linux Bonding Driver (LBD), and where it's functionality fits into the OSI model, if at all.

It maps multiple IP addresses to a single IP address visible to the upper layer. Would this be Layer 3 or Layer 3.5? I understand that LBD leaves reordering to TCP at Layer 4.

Any thoughts?

Mike D
Old 10-17-2016, 10:20 AM   #2
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From what little I know about it, the bonding driver works at layer 3.
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Old 10-18-2016, 06:47 AM   #3
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That's what I thought at first.

(1) It bonds multiple Link interfaces (Layer 2) together - so is it Layer 2.5?
(2) The New Load Balancing module performs packet reordering - a Transport Layer Function?

I figure it has multi-layer characteristics.


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