Hi..is there any cambium radio that i can that I can use for backup in case Tower A gets off Tower B can back it up and vice versa..almost like a ring connection
Hi @Jane_Katassi,
Just to make sure I understand correctly—could you share a network diagram to illustrate what you’re aiming to achieve?
If you’re referring to a backup access point for a subscriber, we can configure a list of access points. The subscriber will then connect or failover between them based on your preferred pattern, providing redundancy during maintenance or outages.
I need help with a ring backup setup.
Let’s say Tower A backs up Tower B via microwave. If fiber on Tower B is down, Tower A should carry the traffic.
Question:
Can one Cambium Force radio work as both Master and Slave at the same time?
Or must I install 2 pairs — one pair with Master on A / Slave on B, and another pair with Master on B / Slave on A?
Please advise.
Thanks
Hi @Ronald_Reimer,
If I understand your use case correctly, you are looking to implement a network redundancy scenario where, for example, if the fiber connection on Tower B goes down, the traffic is automatically redirected through Tower A, and vice versa.
If this is your intended topology, then this type of failover can be achieved using a routing protocol such as OSPF.
Regarding your original question, a single Cambium radio cannot operate as both a Master (AP) and a Slave (SM) at the same time. Each radio can operate in only one wireless role at a time.
If our understanding of your use case is correct, you should not need a second AP/SM pair solely for routing failover. Instead, the redundancy would be handled by the routing protocol, while the wireless link continues to operate as a single point-to-point connection.
If your intended topology is different, please let us know or share a simple network diagram, and we will be happy to recommend the most appropriate solution.
No, they can’t. BUT both a Master and a Slave are both perfectly happy to send and receive information either direction.
For example, if your link is set to 50%/50% duty ratio (or if it’s set to Flexible Frame, or set to ePTP Mode) then there’s very little performance difference with data going from A to B, or from B to A.
So, I think you can accomplish what you’re asking with routing, and a single link between A-B in Flexible Frame or ePTP should be happy to carry data either direction as the routing requires it to.
This is the perfect question that am asking
Well, you would have to accomplish that with routing - in your routers.
So I’m guessing right now, each of these two Fiber feeds & towers have some sort of router (Mikrotik? Or some type of router?) So those routers would need to be programmed to re-route traffic if either fiber feed goes down And a routing protocol (such as OSPF) can automatically change the routing based on that condition.

