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Updates on this link -> MR Wireless throughput Calculations

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Updates on this link -> MR Wireless throughput Calculations

 

Hi,

 

I was asked to provide some stats today on MR 33 vs MR 53, and it would have been good to get the following official link updated listing all the MR's in the Meraki range, is this possible?

 

https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Wireless_Throughput_Calculations_...

 

Cheers,

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Re: Updates on this link -> MR Wireless throughput Calculations

Those are marketing numbers. What you are referring to is a vendor-neutral thing.

All you need to know is that MR33 does 2x2:2 and MR53 does 4x4:4

Then you can use something like this to compare

http://mcsindex.com/

or this, same information but it includes the new 802.11ax (Wi-Fi 6) MCS rates

https://www.semfionetworks.com/blog/mcs-table-updated-with-80211ax-data-rates

Range isn't a value that will mean anything because it is only usable in a theoretical free space theory world kind of scenario. Otherwise, your going to get very different results if your in an office with 4 wall between you and the AP, is the door to the office your in open? Are you tilting your phone sideways, and more importantly what does your phone support (hint - its not higher than 2x2:2). There aren't really any clients in the wild that even have 4x4:4 capabilities, however having the extra antenna does in theory help with diversity/MIMO/spacial multiplexing etc.

Best case lab scenario, with a theoretical client that supports 4x4:4 is that at 20MHz, that client on the MR53 would get a data rate of 346.7Mbps, and on the MR33 it would get 173.3Mbps.

MR53 is 'better' in the sense that it has more streams/antenna and better CPU/RAM capabilities as well. This comes at a cost (financial) of course. I personally prefer the MR42 which is a nice middle ground on price and its capabilities (3x3:3)

Nolan Herring | nolanwifi.com
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Kind of a big deal

Re: Updates on this link -> MR Wireless throughput Calculations

Those are marketing numbers. What you are referring to is a vendor-neutral thing.

All you need to know is that MR33 does 2x2:2 and MR53 does 4x4:4

Then you can use something like this to compare

http://mcsindex.com/

or this, same information but it includes the new 802.11ax (Wi-Fi 6) MCS rates

https://www.semfionetworks.com/blog/mcs-table-updated-with-80211ax-data-rates

Range isn't a value that will mean anything because it is only usable in a theoretical free space theory world kind of scenario. Otherwise, your going to get very different results if your in an office with 4 wall between you and the AP, is the door to the office your in open? Are you tilting your phone sideways, and more importantly what does your phone support (hint - its not higher than 2x2:2). There aren't really any clients in the wild that even have 4x4:4 capabilities, however having the extra antenna does in theory help with diversity/MIMO/spacial multiplexing etc.

Best case lab scenario, with a theoretical client that supports 4x4:4 is that at 20MHz, that client on the MR53 would get a data rate of 346.7Mbps, and on the MR33 it would get 173.3Mbps.

MR53 is 'better' in the sense that it has more streams/antenna and better CPU/RAM capabilities as well. This comes at a cost (financial) of course. I personally prefer the MR42 which is a nice middle ground on price and its capabilities (3x3:3)

Nolan Herring | nolanwifi.com
TwitterLinkedIn

View solution in original post

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Re: Updates on this link -> MR Wireless throughput Calculations

Hi Nolan,

 

Thank you for the links, and also reminder about 'client' capabilities, I wasn't aware of their limitations. Is there an easy way to see this on the Meraki dashboard?

 

I did find the following CiscoLive presentations on the new MR55 with 8x8:8 (seems to be the now defined as the high density AP), but with our existing MR53, in theory we should also provide an 'mgbit' port on the AP uplink, as there could be a bottleneck there also.

 

Links for reference;

 

https://meraki.cisco.com/lib/pdf/meraki_datasheet_MR55.pdf

https://meraki.cisco.com/lib/pdf/meraki_multigigabit_solution_guide.pdf

https://www.ciscolive.com/c/dam/r/ciscolive/apjc/docs/2019/pdf/BRKCRS-2231.pdf

https://www.ciscolive.com/c/dam/r/ciscolive/latam/docs/2019/pdf/BRKEWN-1683.pdf

 

Cheers,

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Re: Updates on this link -> MR Wireless throughput Calculations

Also adding this to my reading list;

 

High Density Wi-Fi Deployments

 

https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/...

 

some really good pointers on that document.

 

Cheers,

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Re: Updates on this link -> MR Wireless throughput Calculations


@Meraki888 wrote:

 

in theory we should also provide an 'mgbit' port on the AP uplink, as there could be a bottleneck there also.

 


Yeah that is another one of those things you'll realistically never run into in the real world, for quite a few years to come:

 

http://divdyn.com/wi-fi-throughput/

Nolan Herring | nolanwifi.com
TwitterLinkedIn
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Re: Updates on this link -> MR Wireless throughput Calculations

this is a good read on Wifi6 and when things to think about re:deployment vs timing.

 

https://meraki.cisco.com/blog/2019/05/when-will-wi-fi-6-hit-the-mainstream/

 

Cheers,

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