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Cisco Bug: CSCta17517 - SIM-3-PORT messages aren't generated with LAG mode.

Last Modified

Jun 30, 2016

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

4.2(205.0)

Description (partial)

Symptom:

%SIM-3-PORT_DOWN and %SIM-3-PORT_UP are not generated when WLC is configured 
enabling LAG mode.

[Cisco Wireless LAN Controller System Message Guide] explained as below.
http://www.cisco.com/en/US/docs/wireless/controller/message/guide/msgs8.html
----------------------------------------------------------------
 Error Message    %SIM-3-PORT_DOWN: Physical port [dec] is down!.
 Explanation    A Physical port is down!.
 Recommended Action    No action is required.
----------------------------------------------------------------
 Error Message    %SIM-3-PORT_UP: Physical port [dec] is up!.
 Explanation    Physical port is up!.
 Recommended Action    No action is required.
----------------------------------------------------------------

Condition:

Messages are not generated if LAG mode of physical port is enabled.
 
(Cisco Controller) >show interface summary
Interface Name                   Port Vlan Id  IP Address      Type    Ap Mgr Guest
-------------------------------- ---- -------- --------------- ------- ------ -----
ap-manager                       LAG  200      192.168.0.2     Static  Yes    No
management                       LAG  100      192.168.0.1     Static  No     No
                                 ^^^

Messages are generated if LAG mode of physical port is disabled.

(Cisco Controller) >show interface summary
Interface Name                   Port Vlan Id  IP Address      Type    Ap Mgr Guest
-------------------------------- ---- -------- --------------- ------- ------ -----
ap-manager                       1    100      192.168.0.2     Static  Yes    No
management                       1    200      192.168.0.1     Static  No     No
                                 ^^^
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