Controller Based WLANs

Requirement:

Aruba Mobility Controllers should be running Minimum ArubaOS 6.5.0.1 or above

When an AP terminates on a controller and moves to another controller, or an AP is removed from the WLAN network, a stale entry of the AP continues to remain in the AP database of the controller. The controller might be a Master or Local controller. 

Prior to 6.5.0.1 a stale entry of the AP can be deleted only in the "Master" Controller. When we try to delete the stale entry from a "Local" controller we get the following error message ""This command must be run on the active master""

Starting from ArubaOS 6.5.0.1, a stale entry of the AP in the "Local" controller can be deleted.

From CLI:

Syntax:

(Local) #clear gap-db stale-ap ap-name/wired-mac <ap-name/ap-wired-mac-address> lms lms-ip/lms-ip6 <ipv4/ipv6 ip-address>

Example: 

(Local) #clear gap-db stale-ap ap-name AP225 lms lms-ip 10.17.169.151

From WebUI:

At the moment this option is available only from CLI and not available from WebUI.

Verification with an Example:

Before the execution of the command:

(Local) #show ap database long

AP Database
-----------
Name               Group       AP Type  IP Address     Status  Flags  Switch IP      Standby IP  Wired MAC Address  Serial #   Port  FQLN  Outer IP  User
----               -----       -------  ----------     ------  -----  ---------      ----------  -----------------  --------   ----  ----  --------  ----
24:de:c6:cf:81:36  Aruba-Test  215      10.17.169.158  Down    2      10.17.169.151  0.0.0.0     24:de:c6:cf:81:36  CK0005594        N/A   N/A
AP225              Aruba-Test  225      10.20.25.34    Down    2      10.17.169.151  0.0.0.0     9c:1c:12:c1:41:8e  BX0061358        N/A   N/A

Flags: U = Unprovisioned; N = Duplicate name; G = No such group; L = Unlicensed
       I = Inactive; D = Dirty or no config; E = Regulatory Domain Mismatch
       X = Maintenance Mode; P = PPPoE AP; B = Built-in AP; s = LACP striping
       R = Remote AP; R- = Remote AP requires Auth; C = Cellular RAP;
       c = CERT-based RAP; 1 = 802.1x authenticated AP; 2 = Using IKE version 2
       u = Custom-Cert RAP; S = Standby-mode AP; J = USB cert at AP
       i = Indoor; o = Outdoor
       M = Mesh node; Y = Mesh Recovery

Port information is available only on 6xx.

Total APs:2

(Local) #

After the Execution of the command 

(Local) #clear gap-db stale-ap ap-name AP225 lms lms-ip 10.17.169.151

(Local) #show ap database long

AP Database
-----------
Name               Group       AP Type  IP Address     Status  Flags  Switch IP      Standby IP  Wired MAC Address  Serial #   Port  FQLN  Outer IP  User
----               -----       -------  ----------     ------  -----  ---------      ----------  -----------------  --------   ----  ----  --------  ----
24:de:c6:cf:81:36  Aruba-Test  215      10.17.169.158  Down    2      10.17.169.151  0.0.0.0     24:de:c6:cf:81:36  CK0005594        N/A   N/A

Flags: U = Unprovisioned; N = Duplicate name; G = No such group; L = Unlicensed
       I = Inactive; D = Dirty or no config; E = Regulatory Domain Mismatch
       X = Maintenance Mode; P = PPPoE AP; B = Built-in AP; s = LACP striping
       R = Remote AP; R- = Remote AP requires Auth; C = Cellular RAP;
       c = CERT-based RAP; 1 = 802.1x authenticated AP; 2 = Using IKE version 2
       u = Custom-Cert RAP; S = Standby-mode AP; J = USB cert at AP
       i = Indoor; o = Outdoor
       M = Mesh node; Y = Mesh Recovery

Port information is available only on 6xx.

Total APs:1

(Local) #