WLC 5520 controllers

[Joel Theriault]

Hi,

I just rack 2 5520 controller but can't ping one of them. On that one, all LED or off except the Power Button...any ideas why?

Thanks

[Rasika Nayanajith]

Have you done initial configurations ? If not what configurations you have done.

Post "show interface summary" & "show interface detail management" output

HTH

Rasika

[Leo Laohoo]

On that one, all LED or off except the Power Button

This means the unit is powered OFF.  

What color is the power button LED?  Orange?

[Joel Theriault]

Power Led is green

[Scott Fella]

Console into the unit and power cycle the box and see if you see output. 

-Scott 

*** Please rate helpful posts ***

[Joel Theriault]

I can see normal output...

[Scott Fella]

Once is SSO, you will not be able to ping the backup unit. If the 5520's are not in SSO then each should have almost the same configuration except for hostname and any ip defined on the interface except for the VIP. 

Post your show interface summary and show redundancy summary

-Scott 

*** Please rate helpful posts ***

[Joel Theriault]

(Cisco Controller-Standby) >show int sum
show interface sum

Number of Interfaces.......................... 12

Interface Name Port Vlan Id IP Address Type Ap Mgr Gu est
-------------------------------- ---- -------- --------------- ------- ------ -- ---
management LAG 100 10.6.100.2 Static Yes No
redundancy-management LAG 100 10.6.100.9 Static No No
redundancy-port - untagged 169.254.100.9 Static No No
service-port N/A N/A 192.168.1.1 Static No No
virtual N/A N/A 2.2.2.2 Static No No
z6-fnbsi-health-clin LAG 761 10.253.86.7 Dynamic No No
z6-fnbsi-health-doc LAG 757 10.253.16.7 Dynamic No No
z6-fnbsi-health-doc(mobile) LAG 762 10.253.96.7 Dynamic No No
z6-fnbsi-health-leg LAG 758 10.253.26.7 Dynamic No No
z6-fnbsi-health-mob LAG 760 10.253.76.7 Dynamic No No
z6-fnbsi-health-pub LAG 759 10.253.70.7 Dynamic No No
z6-wireless_users LAG 101 10.6.101.9 Dynamic No No

(Cisco Controller) >show redundancy sum
Redundancy Mode = SSO ENABLED
Local State = ACTIVE
Peer State = STANDBY HOT
Unit = Primary
Unit ID = 58:AC:78:5A:13:6F
Redundancy State = SSO
Mobility MAC = 58:AC:78:5A:13:6F
BulkSync Status = Complete
Average Redundancy Peer Reachability Latency = 161 Micro Seconds
Average Management Gateway Reachability Latency = 831 Micro Seconds

[Scott Fella]

Well everything is working fine. Since you have SSO enabled, you only can ping the primary management ip. The backup is in a standby state until the primary unit fails. When this happens, the backup unit becomes the primary and takes over the IP and mac of the primary that went down. 

-Scott

*** Please rate helpful posts ***

[Joel Theriault]

Does it explain no Green LED?

[Scott Fella]

Power off the primary and see if the LED's change. As far as functionality, SSO is enabled and the backup of working. Power off the primary and test. 

-Scott 

*** Please rate helpful posts ***

[Scott Fella]

Maybe this will help explain things... when you enable SSO and the two units sync, the backup controller no longer has the IP address you have initially setup for that device. The unit now has limited function until the primary fails or you force a failover. 

-Scott 

*** Please rate helpful posts ***