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Contributor I

Master/Local - LMS and Backup-LMS - High Availibility ?

Hi Guys,

 

i didn't find a thread 100% fitting to my problem, so i opened a new thread.

 

I have two 7030 Controllers in the HQ. One is configured as master controller, the other one is configured as local controller, so that i can terminate 128 APs. Master-Redundancy wouldn't work because i could only terminate 64 APs then, but I still need to terminate 70 APs. So i need to do this scenario. I knew, that in case of a controller failure some APs are going to be lost.

 

Now my problem:

If I reboot the Local-Controller, where some APs are terminating, they do not change to the Master-Controller. Is that per Design?

 

Here is the environment:

 

Master-Controller:

Controller-IP: VLAN 10 / 192.168.10.1 / 255.255.255.0

Management-IP: VLAN 77 / 192.168.77.1 / 255.255.255.0

 

Loca-Controller:

Controller-IP: VLAN 10 / 192.168.10.2 / 255.255.255.0

Management-IP: VLAN 77 / 192.168.77.2 / 255.255.255.0

 

The Access Points are booting in VLAN 10 and get an IP-Addres in the same subnet where the both controller are.

 

The Local-Controller has an configured Master-IP-Address of 192.168.77.1, maybe is here the problem? Should it be 192.168.10.1 (same subnet)?

 

Here is the output of the AP database:

 

AP-1

----------------------------

IP: 192.168.10.11

Group: Campus-AP

AP-Type: 205

Flags: 2

Switch-IP: 192.168.10.2

Standby-IP: 0.0.0.0

 

In the AP System Profile I configured both Controllers as LMS and Backup-LMS.

As you can see, the Backup-LMS is still 0.0.0.0. So the AP doesnt change the controller in case of failure of the Local-Controller.

 

Regards,

Thomas

Systems-/Network-Engineer
ACMP, ACCP, Brocade Certified
Contributor I

Re: Master/Local - LMS and Backup-LMS - High Availibility ?

Okay, I found a solution.

 

I changed the Master-IP on the Local-Controller, so that it is 192.168.10.1 (same L2-VLAN). I updated the HA-Group, and put both Controllers with the DUAL-Role inside the HA-Group.

 

There is still no Standby-IP in the AP database, but the AP can failover (with 4-6 seconds downtime, but thats okay. The IPSec-Tunnel of Control Plane Security maybe has to reestablish first, and need his time. After 600 seconds the AP do the failover back to the Local-Controller.

 

Everything fine now.

 

Regards,

Thomas

Systems-/Network-Engineer
ACMP, ACCP, Brocade Certified

Re: Master/Local - LMS and Backup-LMS - High Availibility ?

the standby IP is related to the HA fast failover feature. it wont be different when you use backup LMS-IP.

 

who is your LMS configuration exactly? could you post a screenshot of the AP profile?

 

[edit] you were faster yourself, thanks for reporting back.

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