04-28-2015 12:37 PM
Do we have any disadvantage or performance issues when running AP-225 in a high density area using POE 802.3af?
From my understanding 5GHz operate without any issues (Peformance the same regardless of the power)
in 2.4 Ghz (We use only 1 radio 1SS)
USB turn off
2nd Ethernet disabled.
Am i correct?
Solved! Go to Solution.
04-28-2015 01:43 PM
Correct indeed. If you only have 802.3af capable switches, the AP-215 would be a better fit.
The AP-215 also has 3x3 on both 2.4GHz + 5GHz, only not dual ethernet and a single core CPU.
ACMX#255 | ACDX#742 | ACCX#746 | AMFX#25 | ACMP | ACCP | AWMP
04-28-2015 02:08 PM
2.4GHz should be best effort anyway unless there’s a critical application to be discussed. Most clients nowadays will be band-steered successfully I would think.
Ryan Holland, ACDX #1 ACMX #1
The Ohio State University
04-28-2015 02:38 PM
Just a few thoughts
1) I agree that 5 GHz is becoming very widespread
2) However, 2.4 still needs to be treated appropriately
- Number of client drivers still do not behave well with band steering and do not necessarily select 5 GHz
- 2.4 should be deployed with the power set 5- 8 dB less than 5 GHz radio in the same chassis
- the extra chains make the link more robust due to diversity benefits
- If you get a DFS event the 2.4 needs to be properly tuned to preseve your customer experience.
- 2.4 should generally be left on to ensure anyone connected to 2.4 is on the nearest AP and getting a decent user experience
- Turn off your b rates and even a couple of the low gn rates. This reduces the beacon time consumption and improves 2.4 performance.
So even if the 2.4 band performance is less than 5 GHz it is still 60 MHz of spectrum that you have access to and, deployed properly, adds value to your end customers.
If PoE is a constraint, then as someone mentioned AP-215 is a great option outside of higher density areas.