> With Ubiquiti, we have our CPE radios setup in router mode, with a static private IP for the management
ePMP has the option to configure a separate management interface with its own IP address (we use 10.10.#.# for management interfaces). You can also configure the customer radio so that it can not be accessed from the LAN port if you are concerned about your customers trying to access the radio. With those two options set the only way to access the customer radio is through the wireless interface using the separate management interface IP address.
Or you can just configure the separate management interface , allow access via the Ethernet, and then it is accessible via the LAN port by several IPs ( the separate management IP, the LAN IP, 169.254.1.1, 192.168.0.2)
As far as GPS sync goes you can think of it as an RF shield that blocks 100% of the RF from other Access Points using the same GPS sync. GPS sync only prevents the AP's from interfering with each other though so if you have a customer radio that can see two or more APs running the same frequency as the AP it is connected to then that customer radio will interfear with those other APs and be interfered by those other APs.
So if you are doing ABAB and you have customer on one of the A's and that customer is close enough see and be seen by the other A then GPS sync will not stop that customer radio from interfering with or being interfered with the other A sector. Only the sectors front / back ratio will help you there and/or shielding.
We are in the middle of changing out all of our ubiquiti gear with ePMP and the biggest reason is GPS sync. We had reached a point with Ubiquiti where we could not deploy even one more AP without that AP interfering with one of our other Ubiquiti APs. We were completely out of spectrum. With GPS sync the AP's become invisible to each other allowing us to reuse spectrum we could not reuse before and expand.
With only two exceptions so far every single customer we have changed over from Ubiquiti to ePMP have commented on how much better their internet runs "Since you put that new satellite on" yeah they call the radios satellites and there's nothing ever going to change that I don't think.
The ePMP is predictable, it works where you expect it to work and does so constantly. The Ubiquiti gear was completely unpredictable and inconsistent.
If you are going to swap out Ubiquiti for ePMP then more great news ! With the exception of the 5Ghz connectorized customer radio all the ePMP radios will run on the existing Ubiquiti power supplies. So you don't have to wait for customers to be home before you swap you can schedule it any time and swap it out while they are at work or whateverbecause you don't need in the house/business.
The only real frustration with the ePMP is their absolutely terrible user interface.. It is soooo slow and has little quirks that seem designed to infuriate the poor guy/gal standing on a ladder in 100degree heat, glaring sunlight trying to juggle a radio and phone so so he/she can aim it. Aiming the radios takes a lot longer than Ubiquiti because the interface is slow and frustrating. It really feels like someone at cambium went out of their way to build in lots of little things to just infuriate and slow down installers.