Cisco Wireless LAN Controller System Message Guide, Release 7.3

CAPWAP Messages
CCX Messages
CDP Messages
CIDS Messages

CAPWAP CCX CDP and CIDS System Messages

This chapter contains the following topics:

CAPWAP Messages

This section contains CAPWAP messages.

Error Message    %CAPWAP-3-AP_DB_ALLOC: Unable to alloc AP entry in database for 
[int].[int].[int].[int]:[int]

Explanation Because of an internal error, the AP entry could not be added to the database. The AP might not work as expected.

Recommended Action Copy the message exactly as it appears on the console or in the system log. Research and attempt to resolve the issue using the tools and utilities provided at http://www.cisco.com/cisco/web/support/index.html. With some messages, these tools and utilities will supply clarifying information. Search for resolved software issues using the Bug Toolkit at http://tools.cisco.com/Support/BugToolKit/. If you still require assistance, open a case with the Technical Assistance Center via the Internet at http://tools.cisco.com/ServiceRequestTool/create/launch.do, or contact your Cisco technical support representative and provide the representative with the information you have gathered.

Error Message    %CAPWAP-3-AP_DB_ERR1: Unable to find AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] entry in the database, could not process 
[chars]

Explanation The operation that is being performed for the AP failed because the internal entry for the AP was not found. It is possible that the AP has been removed from the controller.

Recommended Action Use the show ap summary command to determine if the AP is still joined to the controller. If it is not, the message may be ignored. If it is still joined, restart the AP to ensure that it has the latest configuration.

Error Message    %CAPWAP-3-BUFF_ALLOC: Failed to allocate buffer for [chars]

Explanation The system is out of system buffers.

Error Message    %CAPWAP-2-CAP_MSG_TRACE: [chars]

Explanation Debugging for CAPWAP packet.

Error Message    %CAPWAP-3-DB_CREATOR_ERR: Database entry for AP 
[dec]:[dec]:[dec]:[dec] is created in LWAPP, could not process [chars]

Explanation The operation that is being performed for the AP failed because the internal entry for the AP was created in LWAPP, and the message was received in CAPWAP.

Error Message    %CAPWAP-3-DECODE_ERR: Error decoding [chars] from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The CAPWAP message that was sent by the AP was not understood by the controller. The message was dropped. The AP might not function as expected.

Error Message    %CAPWAP-3-DISC_AP_MGR_ERR1: Unable to process primary discovery 
request from AP on interface ([int]), VLAN ([int]), could not get AP manager 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation A discovery response could not be sent to an AP because the controller was not able to obtain the IP address of the AP manager interface.

Explanation Correct the AP manager interface configuration.

Error Message    %CAPWAP-3-DISC_AP_MGR_ERR2: Unable to process primary discovery 
request from AP, AP manager IP address is invalid 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation A discovery response could not be sent to an AP because the controller was not able to obtain the IP address of the AP manager interface.

Recommended Action Correct the AP manager interface configuration.

Error Message    %CAPWAP-3-DISC_BCAST_ERR: Ignoring a discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] via broadcast AP (IP = 
[dec].[dec].[dec].[dec]) is not in the same subnet as the controller

Explanation The controller ignored a broadcast discovery request from an AP because the AP is not on the same subnet as the controller.

Recommended Action No action is required.

Error Message    %CAPWAP-3-DISC_INTF_ERR1: Ignoring discovery request received on 
non-management interface ([int]) from AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation A discovery request from an AP was ignored because it was received on an invalid interface. The network configuration might be invalid.

Recommended Action Check the network configuration to ensure that packets from the AP are correctly routed.

Error Message    %CAPWAP-3-DISC_INTF_ERR2: Ignoring discovery request received on a 
wrong VLAN ([dec]) on interface ([int]) from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation A discovery request from an AP was ignored because it was received on an invalid interface. The network configuration might be invalid.

Recommended Action Check the network configuration to ensure that packets from the AP are correctly routed.

Error Message    %CAPWAP-3-DISC_MAX_AP1: Dropping discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - limit for maximum APs supported [dec] 
reached

Explanation The maximum number of supported APs has been reached. The specified AP will not be serviced.

Recommended Action No action is required.

Error Message    %CAPWAP-3-DISC_MAX_AP2: Dropping primary discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - maximum APs joined [dec]/[dec]

Explanation The maximum number of supported APs has been reached. The specified AP will not be serviced.

Recommended Action No action is required.

Error Message    %CAPWAP-3-DISC_MAX_DOWNLOAD: Ignoring discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - maximum number of downloads ([int]) 
exceeded

Explanation A discovery request from an AP was rejected because the maximum number of concurrent downloads are already in progress. The AP might successfully join the controller on a later attempt.

Recommended Action No action is required.

Error Message    %CAPWAP-3-DISC_MAX_JOIN: Rejecting discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - maximum AP joins ([int]) exceeded

Explanation A discovery request from an AP was rejected because the maximum number of concurrent joins are already in progress. The AP might successfully join the controller on a later attempt.

Recommended Action No action is required.

Error Message    %CAPWAP-4-DISC_TIME_ERR: Unable to retrieve time information while 
processing discovery request from AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Due to an internal error, the time at which the AP discovery request was received was not recorded. The AP might join the controller and function normally, but monitoring of the APs presence or absence might not work as expected.

Recommended Action No action is required.

Error Message    %CAPWAP-3-DISC_VLAN_ERR: Received a discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] on an unsupported VLAN ([int]), dropping the 
request

Explanation A discovery request was received on a port on which no interface was created.

Recommended Action Check the network configuration to ensure that packets from the AP are correctly routed.

Error Message    %CAPWAP-3-DTLS_BUFF_ERR: Failed to allocate DTLS buffer to AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The system is unable to allocate DTLS buffer for message to AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Error Message    %CAPWAP-3-DTLS_CLOSED_ERR: [hex]:[hex]:[hex]:[hex]:[hex]:[hex]: DTLS 
connection closed forAP [int]:[int]:[int]:[int] ([int]), Controller: 
[int]:[int]:[int]:[int] ([int]) [chars]

Explanation The DTLS connection closed for the AP due to an unknown reason.

Error Message    %CAPWAP-3-DTLS_CONN_ERR: [hex]:[hex]:[hex]:[hex]:[hex]:[hex]: DTLS 
connection not found forAP [int]:[int]:[int]:[int] ([int]), Controller: 
[int]:[int]:[int]:[int] ([int]) [chars]

Explanation The DTLS connection was not found for the AP. Encrypting messages or processing an encrypted packet will not be possible for this AP.

Recommended Action Check if the AP entry is present in the database. Use the show ap summary or show dtls connection command to see if the AP entry exists in the database.

Error Message    %CAPWAP-3-DTLS_DB_ERR: [hex]:[hex]:[hex]:[hex]:[hex]:[hex]: Failed to 
create DTLS connection for AP [int]:[int]:[int]:[int] ([int]).

Explanation The system is unable to create the DTLS database entry for the AP. The AP will not be able to join the controller.

Error Message    %CAPWAP-3-DTLS_DEL_ERR: Failed to disconnect DTLS connection for AP 
[int].[int].[int].[int] ([int]).

Explanation The system is unable to delete the DTLS database entry for the AP. The DTLS entry remains stale, and the AP might not be able to join the controller.

Error Message    %CAPWAP-3-ECHO_ERR: Did not receive heartbeat reply; AP: 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The controller did not get a response for the AP heartbeat message. There might be connectivity issues between the AP and the controller.

Recommended Action Check to see if the AP has rebooted or if it has been removed from the network. Also ensure that there are no connectivity issues between the AP and the controller.

Error Message    %CAPWAP-3-ENCODE_ERR: Failed to encode [chars] to AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Due to an internal error, a CAPWAP message could not be transmitted.

Error Message    %CAPWAP-3-HDR_ENCAP_ERR: Unable to encapsulate CAPWAP header for AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The system could not send the CAPWAP packet because of an internal error in encapsulating the packet. The AP might not function as expected.

Error Message    %CAPWAP-3-HDR_ENCAP_ERR2: Unable to encapsulate CAPWAP header for AP 
[int].[int].[int].[int]:[int]

Explanation The system could not send the CAPWAP packet because of an internal error in encapsulating the packet. The AP might not function as expected.

Error Message    %CAPWAP-3-IMAGE_DOWNLOAD_ERR: Refusing [chars] from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - controller image upgrade is in process

Explanation The specified request from the AP is ignored because the controller software is being upgraded. Future attempts from the AP might succeed.

Recommended Action No action is required.

Error Message    %CAPWAP-3-IMAGE_DOWNLOAD_ERR2: Refusing image download request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - max downloads ([dec]) in progress

Explanation The system is ignoring the image download request from the AP because the maximum number of concurrent image download requests are in progress. This condition is temporary. Future attempts by the AP might succeed.

Recommended Action No action is required.

Error Message    %CAPWAP-3-IMAGE_DOWNLOAD_ERR3: Refusing image download request from AP 
- unable to open image file [chars]

Explanation Due to an internal error, the image that the AP is requesting for an image download could not be obtained. The AP image download fails.

Error Message    %CAPWAP-3-IMAGE_DOWNLOAD_ERR4: Refusing image download request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - unable to open MD5 file [chars]

Explanation Due to an internal error, the image that the AP is requesting for an image download could not be obtained. The AP image download fails.

Error Message    %CAPWAP-3-INIT_ERR: Failed to initialize [chars].

Explanation Because of internal error, the module initialization failed. The AP might not be able to join the controller.

Error Message    %CAPWAP-3-INVALID_MSG: The system has detected an invalid message from 
AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex] type ([dec])

Explanation The information that was received on the controller was not understood. The message was dropped.

Error Message    %CAPWAP-3-INVALID_MSG_TYPE: Invalid message type [dec] from 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation An invalid CAPWAP message was received from the AP. The message was dropped.

Error Message    %CAPWAP-3-INVALID_PAYLOAD: Invalid message element [dec] in [chars] 
from [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation An invalid CAPWAP message element was received from the AP. The message was dropped.

Error Message    %CAPWAP-3-INVALID_PAYLOAD2: Invalid message element [dec] in [chars]

Explanation An invalid CAPWAP message element was received from the AP. The message was dropped.

Error Message    %CAPWAP-3-INVALID_PAYLOAD3: Invalid vendor type [dec] in [chars]

Explanation An invalid vendor type is in the CAPWAP message element from the AP. The message was dropped.

Error Message    %CAPWAP-3-INVALID_PREAMBLE: Invalid preamble type ([dec]) in capwap 
message from [int].[int].[int].[int]:[int]

Explanation An invalid preamble type is in the CAPWAP message.The message was dropped.

Error Message    %CAPWAP-3-INVALID_RET_CODE: Invalid result code [dec]. Failed to 
[chars]

Explanation An invalid result code resulted while processing. The message was dropped.

Error Message    %CAPWAP-3-INVALID_STATE_EVENT: Invalid AP event ([dec]) and state 
([dec]) combination

Explanation The event and state combination is not valid in CAPWAP. The event is ignored.

Error Message    %CAPWAP-3-IP_ERR: Could not plumb AP's 
([hex]:[hex]:[hex]:[hex]:[hex]:[hex]) IP address ([dec].[dec].[dec].[dec]), next 
hop MAC ([hex]:[hex]:[hex]:[hex]:[hex]:[hex]) and VLAN ([dec]) to fast path

Explanation Because of an internal error, the IP address of the AP could not be configured in the network processor. The AP might not function as expected.

Error Message    %CAPWAP-3-IP_PROT_ERR: IP protocol ([dec]) in the received packet - 
from AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex] is not UDP, CAPWAP packets are only 
UDP, dropping the packet

Explanation An invalid packet received from the AP was dropped.

Error Message    %CAPWAP-3-JOIN_TMR_START_ERR: Failed to start [chars] timer for AP 
[int].[int].[int].[int]:[int]

Explanation Because of an internal error, the timer could not be triggered. The AP might not operate as expected.

Error Message    %CAPWAP-3-LRAD_MTU_ERR: Failed to set MTU [dec] for AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex].

Explanation The path MTU for the AP could not be set properly. Fragmentation will not be at the proper MTU.

Error Message    %CAPWAP-3-MBUF_ERR: No more system buffers, could not receive CAPWAP 
packet

Explanation The system is out of system buffers.

Error Message    %CAPWAP-0-MSG_QUEUE_ERR: CAPWAP message queue has not been created

Explanation The CAPWAP subsystem has not been initialized. APs might not be able to join the controller.

Error Message    %CAPWAP-3-MSG_SEND_ERR2: Unable to send [chars] message to CAPWAP

Explanation The CAPWAP process might be busy. If this condition persists, it could lead to losing CAPWAP packets and dropping of AP connections. Also, APs might not getting configuration changes from the controller.

Error Message    %CAPWAP-3-MTU_INIT_ERR: Failed to initialize global MTU. Multicast 
traffic will be affected.

Explanation The initialization of the global path MTU has failed. Multicast traffic will be affected in multicast-multicast mode.

Error Message    %CAPWAP-3-POST_DECODE_ERR: Post decode processing failed for [chars] 
from AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Processing of the CAPWAP message has failed after decoding the message. The AP might be disconnected.

Error Message    %CAPWAP-3-REASSEM_LOCK_ERR: Could not obtain exclusive access to 
reassembly tablefor [hex]:[hex]:[hex]:[hex]:[hex]:[hex].

Explanation Access to the internal reassembly database has failed. The CAPWAP reassembly failed, and packets might have been dropped.

Error Message    %CAPWAP-3-REASSEM_MAX_FRAG: Received more fragments ([dec]) than 
supported. Dropping message from [hex]:[hex]:[hex]:[hex]:[hex]:[hex].

Explanation The system has received more CAPWAP fragments than supported. The CAPWAP reassembly failed, and the packet might have been dropped.

Error Message    %CAPWAP-3-REASSEM_MAX_SIZE: Unable to accomodate fragments from 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex].

Explanation The total size of the CAPWAP fragments is greater than the supported limit. Reassembly has failed, and the packet might be dropped.

Error Message    %CAPWAP-3-REASSEM_SPACE: Unable to store capwap fragment from 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex].

Explanation The system has failed to store the CAPWAP fragment. Reassembly has failed, and packets might be dropped.

Error Message    %CAPWAP-3-RECV_FAIL: Could not process CAPWAP packet

Explanation An internal error has occurred while processing the CAPWAP packet. The packet was dropped.

Error Message    %CAPWAP-3-RESTART_ECHO_TIMER_ERR: Failed to restart heart beat timer 
for AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The system is tearing down the CAPWAP connection. The system could not restart the heartbeat timer.

Recommended Action No action is required.

Error Message    %CAPWAP-2-SEM_CREATE_ERR: Could not create semaphore [chars]

Explanation The system is unable to allocate a lock for handling operations on the internal database. The system might become unstable.

Error Message    %CAPWAP-3-SEM_RELEASE_ERR: Could not release exclusive access of AP 
entry for [hex]:[hex]:[hex]:[hex]:[hex]:[hex] in the database

Explanation Releasing access of an AP entry in the database has failed. The AP might not function as expected.

Error Message    %CAPWAP-3-SIMUL_DTLS_HANDSHAKES: Ignoring discovery request from AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex] - maximum number of simultaneous dtls 
sessions([int]) exceeded

Explanation A discovery request from an AP was rejected because the maximum number of concurrent DTLS handshake sessions is already in progress. The AP might successfully join the controller on a later attempt.

Recommended Action No action is required.

Error Message    %CAPWAP-2-SOCK_ERR: Error [chars] CAPWAP socket

Explanation An internal error has occurred. The CAPWAP subsystem could not be initialized.

Error Message    %CAPWAP-3-SOCK_ERR2: Socket select error ([dec])

Explanation An internal error caused a temporary failure in a message handling process. The system is attempting to recover from this situation.

Error Message    %CAPWAP-3-SOCK_ERR3: Could not read from the CAPWAP socket

Explanation A failure occurred when processing an internal CAPWAP message. The system might become unstable.

Error Message    %CAPWAP-3-SOCK_ERR4: Could not read from CAPWAP socket, frame length 
out of bounds ([dec])

Explanation A failure occurred when processing an internal CAPWAP message. The system might become unstable.

Error Message    %CAPWAP-2-TASK_CREATE_ERR: Failed to create CAPWAP [chars] task

Explanation An internal error occurred. The CAPWAP subsystem could not be initialized. APs might not be able to join the controller.

Error Message    %CAPWAP-3-TEMP_AP_DB_ALLOC: Unable to alloc temporary AP entry in 
database for [int].[int].[int].[int]:[int]

Explanation Due to an internal error, an AP entry could not be added to the database. The AP might not join the controller.

Error Message    %CAPWAP-3-TMR_FREE_ERR: Failed to free [chars] timer; AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation An internal error occurred while processing a timer. The AP might not operate as expected.

Error Message    %CAPWAP-3-TMR_START_ERR: Failed to start [chars] timer for AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Due to an internal error, the timer could not be triggered. The AP might not operate as expected.

Error Message    %CAPWAP-3-TMR_STOP_ERR: Failed to stop [chars] timer for AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Due to an internal error, the timer stop could not be triggered. The AP might not operate as expected.

Error Message    %CAPWAP-3-TX_ERR: Failed to transmit [chars] to AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation Because of an internal error, a CAPWAP message could not be transmitted.

Error Message    %CAPWAP-3-TX_ERR2: Could not transmit CAPWAP control packet (error = 
[int])

Explanation Because of an internal error, a CAPWAP message could not be transmitted.

Error Message    %CAPWAP-3-UDP_PORT_ERR: Received invalid UDP port ([dec]) in the 
packet from AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex], dropping the packet

Explanation An invalid packet that was received from the AP was dropped.

Error Message    %CAPWAP-3-UNSUPPORTED_TYPE: Received an invalid [chars] ([dec]): AP 
[hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation The information received on the controller was not understood. The message was dropped.

Error Message    %CAPWAP-3-UNSUPPORTED_TYPE1: Received an invalid [chars] ([dec])

Explanation The information received on the controller was not understood. The message was dropped.

CCX Messages

This section contains Cisco Compatible eXtensions (CCX) messages.

Error Message    %CCX-3-AP_NOT_FOUND: AP [hex]:[hex]:[hex]:[hex]:[hex]:[hex] does not 
exist.

Explanation The specified access point cannot be found.

Recommended Action Verify that this access point is registered in the current access point list on the controller.

Error Message    %CCX-3-DIAG_EVENTLOG_MALLOC_FAILED: Out of memory for storing CCXv5 
Event Log data from [hex]:[hex]:[hex]:[hex]:[hex]:[hex]