Controllerless Networks

Hello everyone,

I'm currently managing a network of 100 APs using the Aruba Mobility Controller. Upon inspecting the logs of three randomly selected APs using the command:

show ap debug system-status ap-name [APNAME]

I noticed that the interface counter values, particularly for Rx_errors and Rx_drops, are significantly high. Below is an excerpt from one of the AP's log:

Interface counters
------------------
Interface  Rx_pkts    Rx_errors  Rx drops   Tx_pkts    Tx_errors  Tx_drops  Resets
---------  -------    ---------  --------   -------    ---------  --------  ------
wifi0      494830483  70791350   504029514  776829505  16         4249      0
wifi1      136516651  27629129   142041968  10499851   5          448       0

This pattern of high Rx_errors and Rx_drops seems to be consistent across the three APs I checked.

Is this normal for Aruba devices? Just to clarify, I'm not implementing any policy controls on either the APs or the controller.

Additional information:

• Model: Aruba7205-JP
• Firmware Version: 8.10.0.9 LSR

AP Model: AP-505

I would appreciate any insights or recommendations on this matter. Thank you in advance for your assistance.

Best regards

No, this is not normal. I would check a few more APs to see if you can spot a pattern, but you may first want to consider clearing the counters as they are quite high. Clearing the counters will help make it more clear how frequently the errors/drops are incrementing. 

clear ap debug radio-stats ap-name <ap-name> radio <id>
show ap debug radio-stats ap-name <ap-name> radio <id> | include rror,rop,set

Hello everyone,

I'm currently managing a network of 100 APs using the Aruba Mobility Controller. Upon inspecting the logs of three randomly selected APs using the command:

show ap debug system-status ap-name [APNAME]

I noticed that the interface counter values, particularly for Rx_errors and Rx_drops, are significantly high. Below is an excerpt from one of the AP's log:

Interface counters
------------------
Interface  Rx_pkts    Rx_errors  Rx drops   Tx_pkts    Tx_errors  Tx_drops  Resets
---------  -------    ---------  --------   -------    ---------  --------  ------
wifi0      494830483  70791350   504029514  776829505  16         4249      0
wifi1      136516651  27629129   142041968  10499851   5          448       0

This pattern of high Rx_errors and Rx_drops seems to be consistent across the three APs I checked.

Is this normal for Aruba devices? Just to clarify, I'm not implementing any policy controls on either the APs or the controller.

Additional information:

• Model: Aruba7205-JP
• Firmware Version: 8.10.0.9 LSR

AP Model: AP-505

I would appreciate any insights or recommendations on this matter. Thank you in advance for your assistance.

Best regards

Thank you, Josh, for your input.

I've observed the same issue across other APs as well. Interestingly, an EdgeCore EAP101 on the same network did not exhibit any errors or drops. We also have Aruba units deployed at a different location within our intranet, and they too have shown a high number of errors and drops.

The statistics for the one unit I initially mentioned were reset around 11:39 JST, and the values checked at 17:39 JST are as follows:

(Controller) [mynode] #show ap debug radio-stats ap-name AP1 radio 0 | include rror,rop,set
Total Radio Resets               0
Resets Beacon Fail               0
Tx Frames Dropped                666
Tx Frames Dropped Rate 1s        0
Tx Bcast Frames Dropped          0
Tx Time Frames Dropped           402884
Tx Time Data dropped             402884
Tx DMO Dropped                   0
Tx Dropped After Retry           0
Tx Dropped No Buffer             3
Tx WMM [BE] Dropped              169
Tx WMM [VO] Dropped              110
Tx UAPSD OverflowDrop            0
Tx Managment Frames Dropped      386
Tx Data Frames Dropped           280
Tx EAPOL Frames Dropped          0
Rx CRC Errors                    4100565
Rx PLCP Errors                   1563959
Rx Frames Dropped                41427885
(Controller) [mynode] #show ap debug radio-stats ap-name AP1 radio 1 | include rror,rop,set
Total Radio Resets               0
Resets Beacon Fail               0
Tx Frames Dropped                395
Tx Frames Dropped Rate 1s        0
Tx Bcast Frames Dropped          0
Tx Time Frames Dropped           2843570
Tx Time Data dropped             2843570
Tx DMO Dropped                   0
Tx Dropped After Retry           0
Tx Dropped No Buffer             10
Tx WMM [BE] Dropped              113
Tx WMM [VO] Dropped              200
Tx UAPSD OverflowDrop            0
Tx Managment Frames Dropped      94
Tx Data Frames Dropped           301
Tx EAPOL Frames Dropped          0
Rx CRC Errors                    8140977
Rx PLCP Errors                   5044987
Rx Frames Dropped                22715629

Would you agree that these results could be indicative of a performance issue?

No, this is not normal. I would check a few more APs to see if you can spot a pattern, but you may first want to consider clearing the counters as they are quite high. Clearing the counters will help make it more clear how frequently the errors/drops are incrementing. 

clear ap debug radio-stats ap-name <ap-name> radio <id>
show ap debug radio-stats ap-name <ap-name> radio <id> | include rror,rop,set

Hello everyone,

I'm currently managing a network of 100 APs using the Aruba Mobility Controller. Upon inspecting the logs of three randomly selected APs using the command:

show ap debug system-status ap-name [APNAME]

I noticed that the interface counter values, particularly for Rx_errors and Rx_drops, are significantly high. Below is an excerpt from one of the AP's log:

Interface counters
------------------
Interface  Rx_pkts    Rx_errors  Rx drops   Tx_pkts    Tx_errors  Tx_drops  Resets
---------  -------    ---------  --------   -------    ---------  --------  ------
wifi0      494830483  70791350   504029514  776829505  16         4249      0
wifi1      136516651  27629129   142041968  10499851   5          448       0

This pattern of high Rx_errors and Rx_drops seems to be consistent across the three APs I checked.

Is this normal for Aruba devices? Just to clarify, I'm not implementing any policy controls on either the APs or the controller.

Additional information:

• Model: Aruba7205-JP
• Firmware Version: 8.10.0.9 LSR

AP Model: AP-505

I would appreciate any insights or recommendations on this matter. Thank you in advance for your assistance.

Best regards