topic SZ Cluster - APs balanced on Control Plane but not Data Plane in SmartZone and Virtual SmartZone

SZ Cluster - APs balanced on Control Plane but not Data Plane

Greg_WiGuy — Wed, 15 Dec 2021 13:55:47 GMT

I'm running a pair of SZ124s on v5.2.2.0.1161 and recently clustered them. Clicked the "rebalance APs" button and now I see an even split of ~200 assigned to each of the two SZs.... but, when checking the AP page and enabling the Data Plane column, only 3 APs are using one of the controllers' data plane while all the others are locked on the second SZ. Doesn't seem very balanced to me, is this "expected behaviour"?

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Vineet_nejwala — Wed, 15 Dec 2021 14:05:53 GMT

Hi @Greg_WiGuy

Can you try a couple more time to rebalance and also please check below article that gives better understanding on "rebalancing AP's" behavior.

https://support.ruckuswireless.com/articles/000005814

Best Regards

Vineet

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Greg_WiGuy — Wed, 15 Dec 2021 20:29:29 GMT

Thanks Vineet, I understand it a little better thanks to the article you posted.

I've tried rebalancing a couple times today but still only 4/400 APs using one of the dataplanes while the control plane seems pretty well balanced.

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Vineet_nejwala — Thu, 16 Dec 2021 03:26:46 GMT

@Greg_WiGuy

Can you please get the "get scg" command output from few of the AP's to check if they have all DP's IP list ?

Best Regards

Vineet

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Greg_WiGuy — Thu, 16 Dec 2021 14:02:06 GMT

@vineet_nejawala

The 'get scg' command lists both SZ IP addresses next to "Server List:" and "SSH Tunnel Connected to:" the IP of the SZ that is listed under control plane.

I couldnt see anything that called out the Data Plane specifically.

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Vineet_nejwala — Thu, 16 Dec 2021 14:08:32 GMT

@Greg_WiGuy

Just saw you're using SZ box, can you please open a TAC case as to identify why the APs rebalance count on DP is extremely uneven. Please perform a rebalance and download SZ snapshot log and few AP's support log to start with on the case.

https://support.ruckuswireless.com/contact-us

Best Regards

Vineet

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Greg_WiGuy — Thu, 16 Dec 2021 15:49:21 GMT

@vineet_nejawala

Thanks Vineet, will do.

Re: SZ Cluster - APs balanced on Control Plane but not Data Plane

Greg_WiGuy — Fri, 17 Dec 2021 14:15:52 GMT

@vineet_nejawala

just wanted to mention that I've found rebooting an AP sometimes get's it to switch to the other, less used, data-plane.

I havent had the chance to open a case yet but will pursue once we're out of Log4j hell 😉