12-12-2019 04:50 PM - edited 07-05-2021 11:25 AM
A couple of questions to help me understand wireless mesh networking
1. Why do the RAPs and MAPs participating in the mesh need to be on the same channel
2. If there are like 20 APs in a mesh all on the same 5 GHz channel, pretty close to each other, wouldn't that cause channel interference on that channel? If not, why and please provide details.
3. If we are using 5 GHz for both backhaul + provide client access and also providing client access on the 2.4 GHz, is there a way to set priority (QoS)? So for example, I want to provide a higher priority to my clients on the 2.4 GHz than 5 Ghz, is that possible? If so, how or what are some of the best ways to tackle situations like these?
4. In a mesh topology with RAPs connected to multiple MAPs, if the mesh channel goes bad (any interference device causes channel interference), is there a way the RAP automatically can figure out the channel has gone bad and changes the channel to a clean one (on the 5 Ghz band). Kind of like EDRRM but on the 5 GHz in a mesh.
Thanks.
TH.
12-16-2019 04:54 AM
1) RAP and MAP (or multiple MAPs) need to communicate with each other hence they need to be on the same channel for this
(not the client link, that can be different) yes with increasing number of MAPs this channel gets more loaded
2) yes, but can be steered somewhat by using multiple RAP's on different channels
divide 20 MAPS over 4 RAPs -> 5 MAP's/RAP
3) QoS is available both on 2,4GHz and 5GHz bands
but what you describe is NOT QoS, you can set a preferred band at the client wifi adapter settings, is this what you mean?
4) (NB no life experience) I guess this is possible, but as the contact between RAP and MAP is lost when changing channel ,
the MAP(s) needs to scan the band for the new channel used by the RAP,
as a result it will take some time before the mesh has converged and all MAPs to this RAP use the new channel.
12-16-2019 06:54 PM
12-16-2019 08:20 PM
12-16-2019 08:26 PM
12-16-2019 09:12 PM
12-16-2019 09:21 PM
12-16-2019 11:32 PM
12-17-2019 12:41 AM
no, (AFAIK) there is no way to load-balance between 2,4 and 5 GHz
you can only steer this by using different SSID's
in addition you can prepare a design where you classify the area's
like production area's where 2,4 GHZ is commonly available for the RFID devices and 5GHz only on selected AP's
and office area's where 5GHz is common mostly for PC's and 2,4GHz on selected AP's (for e.g. mobiles that only have 2,4GH)
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