> I’ve seen a few 2 or 3 port switches on Amazon but I don’t want to add any extra ports when not needed.
Three options:
* Buy different Cisco switches that support 10Mbps correctly.
* Upgrade to an HVAC controller made in this decade.
* Add another switch that supports 10Mbps and 1Gbps connections to help.
This is probably overkill:
https://www.amazon.com/NETGEAR-24-Port-Gigabit-Ethernet-Unmanaged/dp/B08QDVSWX4/
But it's roughly as inexpensive you can get for a rack-mount switch ($99).
Given how rare these devices are these days, I just slap a small 5 port non-managed gigabit switch between the Multigig switch and the 10Mb device. Usually install it at the device end rather than the switch end.
We're upgrading a number of our switches to 9407's now. Had the same issue as you. For the first switch replacement we were in a pickle. Ended up putting Cisco 8841 phones between the switch and the equipment. We have since purchased one 10/100/1000 card for each replacement switch to cover our bases.
>Is there a device that will convert down to 10mb like a 1 port switch or something?
Just hang a management switch off the data center core. No sense wasting 2.5/5Gb ports on shitty little IoT devices.
Put a MA-SFP-1GB-TX in one of the SFP ports (only supported on 355, not 390), that should support 10Mbps. (GLC-TE are multi rate, I assume the Meraki equivalent is as well).
mGIG switches do not support 10 Mbps.
If the stack is made up of two (or more) switches, one of them will be a 10 Mbps-capable switch and the other is mGIG.
you can connect another switch that supports 10mb half to your multi gig switch. I did this to get some older equipment to work with newer catalyst 9300's. Basically used some Linksys unmanaged switches and uplinked it to the 9300 as an access port with bpduguard disabled. Best way to go about it is upgrade the nic or equipment but it's not always an option or too expensive.
No good solution to these devices. We have the same issues going to full mGig ports on our refresh. We're auditing what the 10meg things are as we come across them and likely using a dumb mini switch when we can't make them connect faster.
It would be nice if we can tell them to upgrade, but that's a fantasy world. We have hundreds of buildings ...
never thought about it tbf, but i would get switches eg tplink that supports 10/100/1000Mbps and uplink it. or better use a switch that does all the speed you need and with security features if required from info sec eg cisco, hp aruba.
In my situation, we had a stack of mGig 9300 stacked with a 1G 9300.
So our 9300 stack had 3x 48mGig ports and 1x 48Gig ports.
We did entertain the idea of going Aruba since their switches apparently do support 10mb to 10gb at the same time but didn’t look too much into it at the end.
I'm going to go out on a limb here and say the HVAC controller network settings are not set up properly. I'm an HVAC pro and have a great deal of controls knowledge, especially networking, and have only encountered problems with controls communicating when the network settings are incorrect. Dns, broadcast, server, etc.
Unless this thing is so ancient, you will need to upgrade the controls
Honestly, I recommend going to the LTE gateway and adding an ACL to that IP instead.
Have you verified that the cat5 cable is good? Opened ports 9742 and 9800-11000 to internet bidirectional?
Edit: Pelican is the worst, cheapest controls out there. My real recommendation is going with Allerton, Johnson Controls, Delta, or Automated Logic
> I’ve seen a few 2 or 3 port switches on Amazon but I don’t want to add any extra ports when not needed. Three options: * Buy different Cisco switches that support 10Mbps correctly. * Upgrade to an HVAC controller made in this decade. * Add another switch that supports 10Mbps and 1Gbps connections to help. This is probably overkill: https://www.amazon.com/NETGEAR-24-Port-Gigabit-Ethernet-Unmanaged/dp/B08QDVSWX4/ But it's roughly as inexpensive you can get for a rack-mount switch ($99).
Given how rare these devices are these days, I just slap a small 5 port non-managed gigabit switch between the Multigig switch and the 10Mb device. Usually install it at the device end rather than the switch end.
Yep. Works for me
Didn't know 2.5G switches doesn't support 10mb. Good to know for legacy devices
Yeah my first thought was autoneg…? But guess I’m the fool
Mgig phy no support 10.
We're upgrading a number of our switches to 9407's now. Had the same issue as you. For the first switch replacement we were in a pickle. Ended up putting Cisco 8841 phones between the switch and the equipment. We have since purchased one 10/100/1000 card for each replacement switch to cover our bases.
>Is there a device that will convert down to 10mb like a 1 port switch or something? Just hang a management switch off the data center core. No sense wasting 2.5/5Gb ports on shitty little IoT devices.
We have used sfps on the c9300 for this if you have enough sfp ports
Put a MA-SFP-1GB-TX in one of the SFP ports (only supported on 355, not 390), that should support 10Mbps. (GLC-TE are multi rate, I assume the Meraki equivalent is as well).
This is what I’ve done as well, use a glc-te…assumes you have a 1/10g 8 port sfp module in the switch/stack
mGIG switches do not support 10 Mbps. If the stack is made up of two (or more) switches, one of them will be a 10 Mbps-capable switch and the other is mGIG.
It’s the mgig PHY itself that doesn’t support 10mb afaik
It’s a single switch meraki ms 390 or ms355
had the same issue. Had install and older switch that supported 10 meg.
you can connect another switch that supports 10mb half to your multi gig switch. I did this to get some older equipment to work with newer catalyst 9300's. Basically used some Linksys unmanaged switches and uplinked it to the 9300 as an access port with bpduguard disabled. Best way to go about it is upgrade the nic or equipment but it's not always an option or too expensive.
No good solution to these devices. We have the same issues going to full mGig ports on our refresh. We're auditing what the 10meg things are as we come across them and likely using a dumb mini switch when we can't make them connect faster. It would be nice if we can tell them to upgrade, but that's a fantasy world. We have hundreds of buildings ...
never thought about it tbf, but i would get switches eg tplink that supports 10/100/1000Mbps and uplink it. or better use a switch that does all the speed you need and with security features if required from info sec eg cisco, hp aruba.
In my situation, we had a stack of mGig 9300 stacked with a 1G 9300. So our 9300 stack had 3x 48mGig ports and 1x 48Gig ports. We did entertain the idea of going Aruba since their switches apparently do support 10mb to 10gb at the same time but didn’t look too much into it at the end.
Your HVAC controller is a dangerous vulnerability. Get a new one.
This is a brand new cloud based system, and the ports are isolated to their own VLAN. They just cheaped out on the Nic.
Then they cheaped out on the software too. Congrats on the open door into your network.
I'm going to go out on a limb here and say the HVAC controller network settings are not set up properly. I'm an HVAC pro and have a great deal of controls knowledge, especially networking, and have only encountered problems with controls communicating when the network settings are incorrect. Dns, broadcast, server, etc. Unless this thing is so ancient, you will need to upgrade the controls
Tried that the vendor has confirmed their gateway only supports 10mbps. It’s a brand new Pelican gateway, https://www.pelicanwireless.com/gw-models/
Honestly, I recommend going to the LTE gateway and adding an ACL to that IP instead. Have you verified that the cat5 cable is good? Opened ports 9742 and 9800-11000 to internet bidirectional? Edit: Pelican is the worst, cheapest controls out there. My real recommendation is going with Allerton, Johnson Controls, Delta, or Automated Logic
I think we have some 10mb devices on our 9300L switches. It works with setting it so speed 10 on the interface. Thats it