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5508 Wireless Controllers Freezing

Our controller get freezing every week at least twice, and do not know what is the reason. I am attaching the log for you to look at it. Last time happened was yesterday at around 13.00 pm.

15 REPLIES
Hall of Fame Super Silver

5508 Wireless Controllers Freezing

Looks like you have a bridge loop.  I'm guessing you don't ahve LAG configured or if so, you etherchanel/port channel is not configured right.  Can you post your show run-config

*Dec 07 13:48:07.103: %CAPWAP-3-DISC_INTF_ERR2: capwap_ac_sm.c:1505 Ignoring discovery request received on a wrong VLAN (5) on interface (13) from AP 00:3a:99:82:4b:40

-Scott
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New Member

Re: 5508 Wireless Controllers Freezing

Thanks for your replay, attached is the run-config.

Ali

Hall of Fame Super Silver

Re: 5508 Wireless Controllers Freezing

Okay... I see you have only one port connected on the WLC. How do you have the trunk port the wlc is connected to configured.

Sent from Cisco Technical Support iPhone App

-Scott
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New Member

Re: 5508 Wireless Controllers Freezing

here is the trunk config on the switch:

interface GigabitEthernet4/0/9

description "Connection to Wireless Controller"

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 1,5,6,600

  switchport mode trunk

Hall of Fame Super Silver

Re: 5508 Wireless Controllers Freezing

Why do you have vlan 1 on the allowed list.

Sent from my iPhone

-Scott
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New Member

Re: 5508 Wireless Controllers Freezing

Vlan 1 is management vlan

Hall of Fame Super Silver

Re: 5508 Wireless Controllers Freezing

Okay, what is vlan 6 then. I don't see that in the wlc. Can you verify that you don't have this command on the switch:

vlan dot1q tag native

Sent from my iPhone

-Scott
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New Member

Re: 5508 Wireless Controllers Freezing

vlan 6 for APs managment, and we do not have 'vlan dot1q tag native' command on the switch.

Thanks

Hall of Fame Super Silver

Re: 5508 Wireless Controllers Freezing

You don't need vlan 6 then on your allowed list since the AP's will communicate with the management interface.

Sent from my iPhone

-Scott
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New Member

Re: 5508 Wireless Controllers Freezing

Sorry Scott, Vlan 6 is for APs DHCP users access, and vlan 5 is the APs managment.

Hall of Fame Super Silver

Re: 5508 Wireless Controllers Freezing

Well then remove vlan 5 from your allowed list.  I don't know if this will fix your issue, but I'm wondering if it might because of this error:

*Dec 07 13:48:07.103: %CAPWAP-3-DISC_INTF_ERR2: capwap_ac_sm.c:1505 Ignoring discovery request received on a wrong VLAN (5) on interface (13) from AP 00:3a:99:82:4b:40

The AP's should join and communictae on the management interface, but you can see here that the WLC is seeing the join from vlan 5.

-Scott
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Hall of Fame Super Gold

5508 Wireless Controllers Freezing

we do not have 'vlan dot1q tag native' command on the switch.

Depends on your switch.  2900, 2940/2950/2955, 2960/2960S don't need dot1q command because it is on by default.

Silver

Re: 5508 Wireless Controllers Freezing

What exactly is your symptom?

"freezing" means what?  Lock up and needs a reboot?  Servicing clients but can't manage it?   Does it self-recover? (does it crash and reboot?)

New Member

Re: 5508 Wireless Controllers Freezing

Lock up and needs a reboot?

Hall of Fame Super Gold

5508 Wireless Controllers Freezing

And what firmware are you running?

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