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Forum Discussion
RN214 link aggregation to computer with 2.5Gbe
Hi Hopefully someone can help,
I have the readynas 214 with an SSD cache drive.
I want to get the best out of it, and so set up link bonding.
My router is an Asus ax11000 and supports link bonding and has a 2.5gbe port
My computer also has a 2.5gbe port
They are both wired to the router. However in LACP mode both read and write cap out at 113MBs. In Round-Robin mode I get 205MBs read but still only 113MBs writes.
And I doing something wrong?
Is there a way I can get the same write speeds and I do read spreads in Round-Robin.
Thanks for any help!
3 Replies
BenPatt511 wrote:
However in LACP mode both read and write cap out at 113MBs.
LACP is intentionally designed to work that way. Each flow through the bonded connection is capped at 1 gbps. It is also designed to deliver the packets of each flow in order. Technically that is done by having the sender map each flow to a specific NIC
using a hash. You can change the hash, but the fundamental design constraints remain the same.
LACP's main use case is to aggregate ("trunk") traffic between switches, and the design makes a lot of sense for that use.
BenPatt511 wrote:
. In Round-Robin mode I get 205MBs read but still only 113MBs writes.
That's because the NAS is doing round-robin in its transmissions, but your router is doing something else in the other direction. The solution is to reconfigure the Asus to also do round-robin - which might not be possible.
Thanks for the quick response,
So in essence I'll be unable to get the same 200MBs write speed with the current set up, and capabilities of the NAS/Router?
BenPatt511 wrote:
Thanks for the quick response,
So in essence I'll be unable to get the same 200MBs write speed with the current set up, and capabilities of the NAS/Router?
Likely yes. I'm not familiar with the router, but generally routers and switches don't give you the option of round-robin.
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