Hello,
I am trying to configure a wifi link using 60 GHz radios. The 60 GHz radios do not perform well with rain, so I would like to use a 5 GHz link as backup.
Is it possible to use STP with path selection based on bandwidth using Mikrotik switches?
Thanks!
Yes, you can add portcosts to various links.
However I doubt that will help in your case unless you manually or by some script disable the path that uses the 60GHz link.
Thank you.
Not sure I understand correctly. I was hoping to configure the switch so that it selects the path with the highest throughput. Is that somehow possible?
You can manually through portcost select which path should be the prefered one if both exists at the same time.
But that wont be able to adjust based on available bandwidth or based on retransmitted packets and such.
To do so you need some kind of script thats being fired remotely or locally (through scheduler for example) that could take metrics and based on them adjust the portcost and then have the STP to recalc which path should be forwarding and which should be blocking.
Problem with that however is that the blocking path wont get any updated stats on the health of that link unless you can read some internal link metrics (like if it can report SNR or RSSI or such).
In your case if you cant get such metrics from the radios whats the advertised bandwidth of the 60GHz vs 5GHz radio?
If they are the same perhaps you can switch to use the 5GHz path as primary one and if that fails use the 60GHz as failover?
Or better yet use both at the same time using LACP or ECMP (but then you will still get affected by rain on the 60GHz path so you would still need to setup some kind of scripting to detect when the 60GHz path should be removed (and reinserted once the rain or other disturbance goes away).
Hello -my apologies for the late reply. I had some PC issues.
I think the goal can be accomplished by a feature of the Ubiquiti radios (Carrier drop) which drops the ethernet port below a certain wifi capacity.
Thanks!