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Contributor I
Posts: 29
Registered: ‎07-08-2014

Master Redundancy don't Synchronize

Hi,

 

I have configured a Master Redundancy on 7200 controllers using lab 15 documention of the boot camb course.

 

One of them now is a master and the other is backup under the redunadency tab.
when I turn off the Master the backup one change to Master automaically, 

under Monitoring tab the master has network information while the backup not.
Under controller information the first is Master while the second is Stand-by

But under WLAN Controllers: I can see only one controller on each not 2

When I shut down the Master all APs become down, I also found that none of the configuration on the Master one (IPs, VLANs, Groups, ......) has been syncronized with the backup one.

 

What should be the problem ????

MVP
Posts: 4,271
Registered: ‎07-20-2011

Re: Master Redundancy don't Synchronize

Please look at your VRRP ?

 

show vrrp status 

 

Are you pointing all your APs to the VRRP VIP ?

 

Also please look at the show master-redundancy 

Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Contributor I
Posts: 29
Registered: ‎07-08-2014

Re: Master Redundancy don't Synchronize

i just pointed one AP  to VRRP VIP, but it goes down when the Master is down

 

VRRP for Master "172.10.100.254"

Virtual Router 100:
Description primary‐master
Admin State UP, VR State MASTER
IP Address 172.10.100.253, MAC Address 00:00:5e:00:01:64, vlan 1
Priority 110, Advertisement 1 sec, Preemption Enable Delay 0
Auth type PASSWORD, Auth data: ********
tracking type is master-up-time, duration 30 minutes, value 20
tracked priority 130

 

VRRP for Backup "172.10.101.254"

 

Virtual Router 100:
Description backup‐master
Admin State UP, VR State BACKUP
IP Address 172.10.100.253, MAC Address 00:00:5e:00:01:64, vlan 1
Priority 100, Advertisement 1 sec, Preemption Enable Delay 0
Auth type PASSWORD, Auth data: ********
tracking type is master-up-time, duration 30 minutes, value 20
tracked priority 100

 

 

VRRP for new virtual IP "172.10.100.253"

 

Virtual Router 100:
Description primary‐master
Admin State UP, VR State MASTER
IP Address 172.10.100.253, MAC Address 00:00:5e:00:01:64, vlan 1
Priority 110, Advertisement 1 sec, Preemption Enable Delay 0
Auth type PASSWORD, Auth data: ********
tracking type is master-up-time, duration 30 minutes, value 20
tracked priority 130

 

 

 

 

show master-redundancy for Master "172.10.100.254"

 

 

Master redundancy configuration:
VRRP Id 100 current state is MASTER
Peer's IP Address is 172.10.101.254
Peer's IPSEC Key is ********

 

 

show master-redundancy for Backup "172.10.101.254"

 

Master redundancy configuration:
VRRP Id 100 current state is BACKUP
Peer's IP Address is 172.10.100.254
Peer's IPSEC Key is ********

 

 

show master-redundancy for new virtual IP "172.10.100.253"

 

Master redundancy configuration:
VRRP Id 100 current state is MASTER
Peer's IP Address is 172.10.101.254
Peer's IPSEC Key is ********

 

Contributor I
Posts: 29
Registered: ‎07-08-2014

Re: Master Redundancy don't Synchronize

I tried show database synchronize, and recieved the following 


Last manual synchronization time: Thu Aug 21 13:27:40 2014
To Master Switch at 172.10.101.254: *** FAILED ***
WMS Database backup file size: 0 bytes
Local User Database backup file size: 0 bytes
CPSec Database backup file size: 0 bytes
Synchronization took 30 second
Last failure cause: Standby switch did not respond to the start request or is not ready

1 synchronization attempted
1 synchronization have failed

Periodic synchronization is enabled and runs every 20 minutes
Synchronization doesn't include Captive Portal Custom data

MVP
Posts: 4,271
Registered: ‎07-20-2011

Re: Master Redundancy don't Synchronize

Make sure the ipsec key matches
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Contributor I
Posts: 29
Registered: ‎07-08-2014

Re: Master Redundancy don't Synchronize

They are the same, and still failed

Occasional Contributor I
Posts: 5
Registered: ‎03-04-2013

Re: Master Redundancy don't Synchronize

Try 'show datapath tunnel table' for IPsec tunnel between them.

 

 

Occasional Contributor I
Posts: 5
Registered: ‎03-04-2013

Re: Master Redundancy don't Synchronize

Also 'show network log 50' to see if the VRRP is flagging any issues.

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