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903 Mesh Node wired up link and roaming settings

  • brightonrob
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05 Sep 2020 17:22 #1 by brightonrob
903 Mesh Node wired up link and roaming settings was created by brightonrob
Hi my environment is 903 root, 903\802 nodes and a 2860

I dont suppose if you know the most sensible roaming setting for a 903 in mesh node with a wired uplink. I standardly have minimum RSSI set as per draytek recommendation on all nodes, but that doesnt seem to make sense on a wired uplink as there is no signal reporting in the way that a wireless connection makes. I thought minimum basic rate makes sense but I wanted to check my thinking is right.

I realise this can be an involved topic involving logging etc but I wanted to find the most sensible default option, see how that goes, then get more elegant should that fail!


Many thanks

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  • hornbyp
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05 Sep 2020 18:49 #2 by hornbyp
Replied by hornbyp on topic Re: 903 Mesh Node wired up link and roaming settings

BrightonRob wrote:
I standardly have minimum RSSI set as per draytek recommendation on all nodes, but that doesnt seem to make sense on a wired uplink as there is no signal reporting in the way that a wireless connection makes. I thought minimum basic rate makes sense but I wanted to check my thinking is right



The RSSI, in question, is between Access Point and Wireless Client - so the uplink part is irrelevent.
FWIW, the parameters I use are in this thread: [url] http://www.forum.draytek.co.uk/viewtopic.php?f=19&t=23585&sid=b1fdf8829c3921b1d900c0f6a340859a#p96660 [/url]

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06 Sep 2020 15:22 #3 by brightonrob
Replied by brightonrob on topic Re: 903 Mesh Node wired up link and roaming settings

hornbyp wrote:

BrightonRob wrote:
I standardly have minimum RSSI set as per draytek recommendation on all nodes, but that doesnt seem to make sense on a wired uplink as there is no signal reporting in the way that a wireless connection makes. I thought minimum basic rate makes sense but I wanted to check my thinking is right



The RSSI, in question, is between Access Point and Wireless Client - so the uplink part is irrelevent.
FWIW, the parameters I use are in this thread: [url] http://www.forum.draytek.co.uk/viewtopic.php?f=19&t=23585&sid=b1fdf8829c3921b1d900c0f6a340859a#p96660 [/url]



Thanks for the parameters, I'll give them a go and see how they work in my home. I realised I didnt understand how RSSI works.

Is the route back from a mesh node to the network ever a consideration in the choice of node to attach to. It just seems if you have 2 competing nodes one with a wired uplink, one with 3 hops, the speed of connection and stability would seem the wired node. That being the case is this speed to the network refelcted in the parameters?

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  • hornbyp
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07 Sep 2020 17:20 #4 by hornbyp
Replied by hornbyp on topic Re: 903 Mesh Node wired up link and roaming settings

BrightonRob wrote:
Is the route back from a mesh node to the network ever a consideration in the choice of node to attach to....That being the case is this speed to the network refelcted in the parameters?


My guess is, that a client only has access to the signal strength - with no visibility of the underlying topology. You could have a read through the IEEE 802.11s documentation, but as I understand it, no manufacturer has actually implemented it - at least not fully.

https://www.researchgate.net/publication/224116334_IEEE_80211s_the_WLAN_mesh_standard

Let us know what you find :lol:

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07 Sep 2020 17:45 #5 by brightonrob
Replied by brightonrob on topic Re: 903 Mesh Node wired up link and roaming settings

hornbyp wrote:

BrightonRob wrote:
Is the route back from a mesh node to the network ever a consideration in the choice of node to attach to....That being the case is this speed to the network refelcted in the parameters?


My guess is, that a client only has access to the signal strength - with no visibility of the underlying topology. You could have a read through the IEEE 802.11s documentation, but as I understand it, no manufacturer has actually implemented it - at least not fully.

https://www.researchgate.net/publication/224116334_IEEE_80211s_the_WLAN_mesh_standard

Let us know what you find :lol:



Wow, interesting although from my perspective counter intuitive. But can I check link speed would be the level of throughput from point a to b, so client via network or vice versa?

I may have a go at the documentation, help with my insomnia!! :D

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08 Sep 2020 00:08 #6 by hornbyp
Replied by hornbyp on topic Re: 903 Mesh Node wired up link and roaming settings

BrightonRob wrote:
But can I check link speed would be the level of throughput from point a to b, so client via network or vice versa?



The Reported "Link Speed", that you see on your phone (for example), seems to be based on a combination of theoretical maximum for the type of connection and the signal strength (according to Netgear: https://kb.netgear.com/19668/Link-Rate-and-Transfer-Speed ). It seems to have absolutely nothing in common with any data rate you can actually measure :( )

FWIW, I did some throughput tests of my Wifi network here: https://forum.draytek.co.uk/viewtopic.php?f=19&t=23630&p=96609#p96609

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