sexta-feira, 11 de setembro de 2015

Cisco WLC - cliente WI-FI desconectando constantemente

Peguei este bug:

No AP 2601 apareceu este log:



*Sep 11 02:33:48.479: %LWAPP-5-RLDP: RLDP stopped on slot 0.
*Sep 11 02:33:48.811: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Sep 11 02:33:48.895: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Sep 11 02:33:49.811: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Sep 11 02:33:49.919: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Sep 11 02:33:50.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Sep 11 02:38:20.239: %LWAPP-5-RLDP: RLDP started on slot 0.
*Sep 11 02:38:20.671: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Sep 11 02:38:20.679: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Sep 11 02:38:21.671: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Sep 11 02:38:21.703: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Sep 11 02:38:22.703: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up

 


Pesquisando cheguei a esta solução de contorno:

Recently had an issue with a Cisco 5508 WLC where RLDP was enabled and the clients were complaining of being disconnected several times a day.

Jumped directly onto the AP via SSH and went through the logs and could see message’s like the following every 2/3 minutes:

*Oct 15 10:37:20.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Oct 15 10:37:34.983: %LWAPP-5-RLDP: RLDP stopped on slot 0.
*Oct 15 10:37:35.043: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Oct 15 10:37:35.287: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Oct 15 10:37:36.043: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Oct 15 10:37:36.279: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Oct 15 10:37:37.279: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Oct 15 10:39:14.483: %LWAPP-5-RLDP: RLDP started on slot 0.
*Oct 15 10:39:14.959: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Oct 15 10:39:14.999: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Oct 15 10:39:15.967: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Oct 15 10:39:15.987: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Oct 15 10:39:15.991: 000f.7de8.XXXX-no legacy rates; default to lowest CCK/OFDM rate
*Oct 15 10:39:16.987: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up
*Oct 15 10:39:31.175: %LWAPP-5-RLDP: RLDP stopped on slot 0.
*Oct 15 10:39:31.235: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to down
*Oct 15 10:39:31.479: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Oct 15 10:39:32.235: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
*Oct 15 10:39:32.471: %LINK-6-UPDOWN: Interface Dot11Radio0, changed state to up
*Oct 15 10:39:33.471: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to up

Fix/Workaround

The Fix is too disable RLDP or enable only for MonitorOnly (Listen) APs:
If you go Security Tab –> Wireless Protection Policies –> Rogue Policies –> General
You will find the following setting:
5508-1
Either mark for Disable or MonitorModeAPs


Fonte: http://problutions.com/2014/10/wireless-client-frequent-disconnects-rldp-andor-rogue-containment/
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