Understand output of APs 802.11 MAC counters

Does anyone know if Cisco have no guidance on troubleshooting flow AP and interpret the 802.11 MAC counter statistics?

Hi Ashley,

802.11 MAC counters

The following table describes the 802.11 MAC counters.

Table 2-2 802.11 MAC counters
Meter

Description

Fragment TX County

This counter is incremented for a MPDU recognized with an individual address in the address 1 field.

TX failed County

This counter will increment when an MSDU is successfully transmitted after one or more retransmissions.

Several Retry Count (graphical view only)

This counter will increment when an MSDU is successfully transmitted after more than one retransmission.

Number of successful RTS

This counter is incremented when a CTS is received in response to an RTS.

County of ACK failure

This counter is incremented when an acknowledgement is not received when expected.

Number of Rx multicast frames

This counter will increment when an MSDU is received with the multicast bit set in the destination MAC address.

Number of images of TX

This counter will increment for each MSDU successfully transmitted.

Number of multicast Tx images

This counter is incremented only when the multicast bit is set in the MAC address of the destination of an MSDU successfully transmitted. When you use it as a SIT in an ESS, where these frameworks are directed to the access point, it means receiving an acknowledgement to all MPDUs associates.

Number of attempts

This counter will increment when an MSDU is successfully transmitted after one or more retransmissions.

Number of duplicate images

This counter will increment when a frame is received that indicates the sequence control field is a duplicate.

County of failure RTS

This counter is incremented when a CTS is not received in response to an RTS.

County of Fragment of Rx

This counter is incremented for each received MPDU of type data or management successfully.

Number of FCS errors

This counter is incremented when an FCS error is detected in a received MPDU.

WEP Undecryptable County

This counter increment when a frame is received with the field control WEP subfield Frame affect one and the WEPOn value for the key mapped to the MAC address of the TA says that the framework should not have been encrypted or which frame is ignored due to the receiving STA does not not the privacy option.

I think that the band select statistics speak for themselves...

When the function is activated, the WLC will immediately respond to probe queries on 11 b/g. If immediately a probe is also seen on 11, then the clietn is detected as dual band. Then WLC responds only to 11A. After a while, this "categorization" expires and WLC will try again see if the client is present on both bands.

Tags: Cisco Wireless

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    com.Apple.cmfsyncagent.plist [killed]

    com.Apple.CoreServices.appleid.authentication.plist [killed]

    com.Apple.followupd.plist [killed]

    com.Apple.gamed.plist [killed]

    com.Apple.icloud.fmfd.plist [killed]

    com.Apple.PBS.plist [killed]

    com.Apple.printtool.agent.plist [killed]

    com.Apple.recentsd.plist [killed]

    com.Apple.scopedbookmarkagent.XPC.plist [killed]

    com.Apple.Security.idskeychainsyncingproxy.plist [killed]

    com.Apple.spindump_agent.plist [killed]

    com.apple.spotlight.IndexAgent.plist [killed]

    com.Apple.telephonyutilities.callservicesd.plist [killed]

    com.Apple.warmd_agent.plist [killed]

    the 22 killed process lack of RAM

    Launch system demons:

    com.Apple.audio.systemsoundserverd.plist [killed]

    com.Apple.awdd.plist [killed]

    com.Apple.CoreServices.appleid.Passwordcheck.plist [killed]

    com.Apple.Emond.aslmanager.plist [killed]

    com.Apple.icloud.findmydeviced.plist [killed]

    com.Apple.ifdreader.plist [killed]

    com.Apple.nsurlsessiond.plist [killed]

    [killed] com.apple.periodic - daily.plist

    [killed] com.apple.periodic - monthly.plist

    [killed] com.apple.periodic - weekly.plist

    com.Apple.softwareupdate_download_service.plist [killed]

    com.Apple.softwareupdated.plist [killed]

    com.Apple.system_installd.plist [killed]

    com.Apple.systemstats.analysis.plist [killed]

    com.Apple.tccd.System.plist [killed]

    com.Apple.wdhelper.plist [killed]

    com.Apple.XPC.SMD.plist [killed]

    17 killed process lack of RAM

    Items in user login:

    Hidden Google Chrome application (/ Google Chrome.app)

    CleanMyMac 3 Menu hidden UNKNOWN (missing value)

    Hidden Dropbox application (/ Applications/Dropbox.app)

    Other applications:

    com.adobe.ARMDC.Communicator [loading]

    com.adobe.ARMDC.SMJobBlessHelper [loading]

    [ongoing] com.Apple.XPC.launchd.oneshot.0x10000039.EtreCheck

    [ongoing] com.google.Chrome.48032

    com.macpaw.CleanMyMac3.Agent [loading]

    com.macpaw.CleanMyMac3.Scheduler [loading]

    [ongoing] com.macpaw.CleanMyMac3.Scheduler.71072

    [ongoing] com.microsoft.Word.49952

    [ongoing] com.Microsoft.AutoUpdate.FBA.19552

    [ongoing] com.Microsoft.Entourage.database_daemon.51872

    [ongoing] JP.co.Canon.cijscannerregister.67552

    Plug-ins Internet:

    iPhotoPhotocast: Version: 7.0

    QuickTime Plugin: Version: 7.7.3

    OfficeLiveBrowserPlugin: Version: 12.3.6 [Support]

    3rd party preference panes:

    None

    Time Machine:

    Skip system files: No.

    Automatic backup: YES

    Volumes to back up:

    Macintosh HD: Disc size: 159,18 GB disc used: 56,90 GB

    Destinations:

    Melissa backup [Local]

    Total size: 0 B

    Total number of backups: 0

    An older backup: -.

    Last backup: -.

    Backup disk size: too small

    Size of backup 0 B< (disk="" used="" 56.90="" gb="" x="">

    Top of page process CPU:

    5% Dropbox

    4% Google Chrome

    3% kernel_task

    3% hidd

    2% WindowServer

    Top of page process of memory:

    820 MB Google Chrome Helper (8)

    382 MB kernel_task

    166 MB Google Chrome

    Finder 77 MB

    Mdworker (6) 61 MB

    Virtual memory information:

    91 MB free RAM

    3.16 used GB RAM (727 MB cache)

    94 MB used Swap

    You could do with adding more RAM, you only have 3Gbs. El Capitan is happier with 4Gbs and above.

    It would be better if the two banks of memory had a size of RAM.

    You can uninstall Clean my Mac, devours resources and causes more problems than it claims to avoid.

    Almost everyone here will tell you that.

    You have a lot of Agents launch and launch the demons that you need all these things to start.

    Some would also say to stop using Google Chrome as it is a "resource eater."

    On the Etrecheck report, you can click on the blue text to help you understand what is happening with your Mac.

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