Wireless Access

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

No idea, that's part of why I recommended a TAC case.

I haven't tried to make fast failover work since AOS 6.3, and wouldn't recommend the configuration for AOS 8.  If you need seamless failover, get an MCR and setup a cluster.  If you just need redundancy, use VRRP and/or LMS/B-LMS.

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

No idea, that's part of why I recommended a TAC case.

I haven't tried to make fast failover work since AOS 6.3, and wouldn't recommend the configuration for AOS 8.  If you need seamless failover, get an MCR and setup a cluster.  If you just need redundancy, use VRRP and/or LMS/B-LMS.

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

Can you just confirm below 2 points if possible based on your experience

1) If all configured correctly, does HA FF allows clients to move seamlessly to backup controller if SSID is WPA2/3 Personal?

2) I read on this forum that during HA FF, user table is not synced between controllers.

Original Message:
Sent: Aug 08, 2024 11:07 AM
From: chulcher
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

No idea, that's part of why I recommended a TAC case.

I haven't tried to make fast failover work since AOS 6.3, and wouldn't recommend the configuration for AOS 8.  If you need seamless failover, get an MCR and setup a cluster.  If you just need redundancy, use VRRP and/or LMS/B-LMS.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 10:59 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Original Message:
Sent: 8/8/2024 10:33:00 AM
From: chulcher
Subject: RE: ArubaOS 8 HA Fast Failover, Client disconnects

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 04:26 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

HA FF will sync "high value" session information from the active to the backup controller.  That should provide a mostly non-interruptive failover for client devices when working properly.

------------------------------
Carson Hulcher, ACEX#110
------------------------------

Original Message:
Sent: Aug 08, 2024 11:46 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Can you just confirm below 2 points if possible based on your experience

1) If all configured correctly, does HA FF allows clients to move seamlessly to backup controller if SSID is WPA2/3 Personal?

2) I read on this forum that during HA FF, user table is not synced between controllers.

Original Message:
Sent: Aug 08, 2024 11:07 AM
From: chulcher
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

No idea, that's part of why I recommended a TAC case.

I haven't tried to make fast failover work since AOS 6.3, and wouldn't recommend the configuration for AOS 8.  If you need seamless failover, get an MCR and setup a cluster.  If you just need redundancy, use VRRP and/or LMS/B-LMS.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 10:59 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Original Message:
Sent: 8/8/2024 10:33:00 AM
From: chulcher
Subject: RE: ArubaOS 8 HA Fast Failover, Client disconnects

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 04:26 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

HA FF will sync "high value" session information from the active to the backup controller.  That should provide a mostly non-interruptive failover for client devices when working properly.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 11:46 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Can you just confirm below 2 points if possible based on your experience

1) If all configured correctly, does HA FF allows clients to move seamlessly to backup controller if SSID is WPA2/3 Personal?

2) I read on this forum that during HA FF, user table is not synced between controllers.

Original Message:
Sent: Aug 08, 2024 11:07 AM
From: chulcher
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

No idea, that's part of why I recommended a TAC case.

I haven't tried to make fast failover work since AOS 6.3, and wouldn't recommend the configuration for AOS 8.  If you need seamless failover, get an MCR and setup a cluster.  If you just need redundancy, use VRRP and/or LMS/B-LMS.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 10:59 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Original Message:
Sent: 8/8/2024 10:33:00 AM
From: chulcher
Subject: RE: ArubaOS 8 HA Fast Failover, Client disconnects

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

------------------------------
Carson Hulcher, ACEX#110

Original Message:
Sent: Aug 08, 2024 04:26 AM
From: Ronin101
Subject: ArubaOS 8 HA Fast Failover, Client disconnects

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?

Expected would depend on whether or not you have things configured properly or not.  When don't correctly you should see the client move to the backup controller seamlessly.

Be aware, HA fast failover is very sparsely used, clustering is the preferred HA method for seamless connectivity.  Most users not running a cluster will utilize either a VRRP pair or LMS/B-LMS for the failover.

Please open a TAC case if you are wanting to troubleshoot your FF configuration.

Dear Expert,

Without Mobility Master, we have option for HA Fast Failover with standalone controllers. I have configured and checked on both controllers "show ha ap table" and both are showing AP connected. however for testing purpose when i disconnect primary controller, the AP starts showing on backup controller but client's communication is no longer going through and ultimately disconnects. I checked on the backup controller and no clients are showing there. I have single SSID working with Preshared key. Is it expected behavior?