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XS724EM/M4200-10MG-POE+ & MS510TXPP - Can't Force 1GB on MGig Ports for incompatible MR53E MGig AP
We own 3 Netgear MGig switches XS724EM / M4200-10MG-POE+ and MS510TXPP with any of these Switches if we attempt to plug in a Cisco Meraki MR53E AP (Supports MGig 2.5) the switch will show a 2.5G 'up...
Again for the records: There is nothing that stops the switch vendors from implementing a switch port from limiting the announced speed capabilities. Still, there must be autonegotiation handshake taking place - this is IEEE 802.3 mandatory for Gb and up. The IEEE person won't change this for Meraki. Configuring a MultiGig port to GbE (or only 2.5G or only 5G or only 10 G for the sake of it) is not similar to setting a MultiGig or Gb port to a fixed 100 or 10 Mb rate.
As the messenger here I understand you look for a solution - however it should be up to Meraki to properly work with standards compliant MultiGig ports on their AP product in question. Netgear does look into changing the specs and updating the switch firmware - but I doubt there is a high priority. That's the problem with vendors like Meraki (ref. MultiGig negotiation) or Ubiquity (ref. non-standard PoE, another pain) coming from a "closed" world.
Hi Kevin,
1. Can you go into M4200 web page, 'Maintenance->Export' page, and export the tech-support file and posted it on the community?
2. What is the cable type used to connect from M4200 to MR53? Cat6? Straight? And length?
Here is the Tech File from the M4200 - as you can see we manually set Speed to "1000" but it shows a 2.5 connection UP - shouldn't changing the "speed" cause this specific port to act like a 1G port on the switch (or to any device plugged into that port)
the cable is 6FT Cat 6A (We have tested multiple cables) - does the M4200 technically support "N-Base-T" (Cisco Pre-standard) "MGig" (was this a competing "pre-standard" to N-Base-T) or IEEE 802.11bz and does Netgear has it's extension of the standard called "5 speed port" - is there a way to capture all traffic on port-5 from the point of the Meraki device being plugged into the switch so I can see what is happening on the wire (possible mirror port 5 to say port 7 - that has a laptop running wireshark) or suggest another method..
I couldn't attach a txt file.. (group only accepts jpg, png or pdf & can't paste over 20,000 character limit.. so finally converted to PDF to attach to this message (might have spacing issues - message me if another way to post it.)
kevinfor2014wrote:Here is the Tech File from the M4200 - as you can see we manually set Speed to "1000" but it shows a 2.5 connection UP - shouldn't changing the "speed" cause this specific port to act like a 1G port on the switch (or to any device plugged into that port)
Don't be misguided by the classic speed setting experience we had in networking up to 100BASE-T - there is fixing speed possible. Starting from 1000BASE-T, auto negotiation for speed and duplex is mandatory. That's the logic implemented on ie. the XS724EM and most Smart Managed Pro switches - either the ability to select 100M or auto.
Can only speak for the MS510TX extensively compatibility tested on the MultiGig ports where any slower speeds can be set, ie. on a 10 Gb port to 5/2.5/1/100M - except of the 100M, the config does change the maximum speed announced with the auto negotiation. And this worked during early deployment tests and still works accordingly with various MultiGig equipment I had at hand back then.
Netgear promised to review and harmonize the behaviour and the Web UI in a customer friendly way. Adding the 1G Full Duplex setting to the current XS and MX switch models is intended (following NX-OX btw.), too. Of course, such a change does take time, and is unlikely done in a rush.
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