Monday, February 24, 2014

@hp_networking unified #wlan best config practices

WLAN RRM settings

wlan rrm
spectrum-management enable
dot11a mandatory-rate 24
dot11a supported-rate 18 36 48 54
dot11a disabled-rate 6 9 12
dot11a multicast-rate 24
dot11b mandatory-rate 11
dot11b supported-rate 5.5
dot11b disabled-rate 1 2
dot11g mandatory-rate 5.5 11 24
dot11g supported-rate 12 18 36 48 54
dot11g disabled-rate 1 2 6 9
dot11g multicast-rate 24
band-navigation balance session 25 gap 3
band-navigation enable                                              Turns on band navigation
dot11a calibrate-channel self-decisive                   Auto channel A 5.8 gig band
dot11a calibrate-power self-decisive                    Auto channel 2.4gig band
dot11a calibration-interval 120                                  calibrate NA every 120 minutes
dot11a calibrate-power min 10                                min power level for na
dot11bg calibrate-channel self-decisive                Auto channel NG 2.4 gig band
dot11bg calibrate-power self-decisive                   Auto power NG 2.4 gig banc
dot11bg calibration-interval 120                               Calibrate power / channel ever 120 min
dot11bg calibrate-power min 8                                 min power level for NG set to 8 db



WLAN QOS settings (set very conservatively)

#
wlan option fair-schedule enable
wlan option client-reject 10
#


WLAN AP settings (for reference

wlan ap pacific-hs-1-74 model MSM460-AM id 27
serial-id CN33D321L8
hybrid-remote-ap enable                           Keeps AP data traffic alive in case of controller offline…
undo broadcast-probe reply                      Keeps unnecessary broadcast reply’s off network wasting bandwidth
radio 1
  service-template 2
  service-template 3
  service-template 4
  radio enable
radio 2
  service-template 2
  service-template 3
  service-template 4
  radio enable
#


WLAN RRM Details at AP level – AP that has made RRM adjustments


<HP-7500-Wlan>dis wlan ap name pacific-hs-1-74 rrm-status 

                         AP RRM Profile : pacific-hs-1-74
-------------------------------------------------------------------------------
Radio   : 1                              Basic BSSID    : d89d-6741-d000
Channel : 48 (Good)                      Tx Power (dBm) : 10                          Note 5 gig power level is set to minims floor / ch 48 and status is good
  ---------------------------------------------------------------------------
   Chl   NbrCnt   Load   Util   Intf   PER   Retry   Radar
                  (%)    (%)    (%)    (%)   (%)
  ---------------------------------------------------------------------------
   36    0        0      -      0      0     -       -
   40    0        0      -      0      0     -       -
   44    1        0      -      0      0     -       -
   48    4        1      0      1      0     0       -                                                               Neighbor count is 4 but interference is low so no change needed
   52    0        0      -      0      0     -       -
   56    1        0      -      0      0     -       -
   60    0        0      -      0      0     -       -
   64    0        0      -      0      0     -       -
   100   0        0      -      0      0     -       -
   104   0        0      -      0      0     -       -
   108   0        0      -      0      0     -       -
   112   0        0      -      0      0     -       -
   116   0        0      -      0      0     -       -
   132   0        0      -      0      0     -       -
   136   0        0      -      0      0     -       -
   140   0        0      -      0      0     -       -
   149   0        0      -      0      0     -       -
   153   0        0      -      0      0     -       -
   157   0        0      -      0      0     -       -
   161   0        0      -      0      0     -       -
   165   0        0      -      0      0     -       -
  ---------------------------------------------------------------------------
   Nbr-BasicBSSID   Chl   Intf   SignalStrength   Type
                          (%)    (dBm)
  ---------------------------------------------------------------------------
   d89d-6740-c600   44    0      -60              Managed                                  Power levels of neighbors
   d89d-6741-1200   56    0      -50              Managed
   d89d-6741-12a0   48    0      -58              Managed
   d89d-6741-12c0   48    0      -56              Managed
   d89d-6741-d020   48    0      -58              Managed
   d89d-6741-d040   48    0      -62              Managed
-------------------------------------------------------------------------------
Radio   : 2                              Basic BSSID    : d89d-6741-d010
Channel : 1 (Good)                       Tx Power (dBm) : 8                            2.4 gig Radio – ch 1  / power has been adjusted to 8 dbm
  ---------------------------------------------------------------------------
   Chl   NbrCnt   Load   Util   Intf   PER   Retry   Radar
                  (%)    (%)    (%)    (%)   (%)
  ---------------------------------------------------------------------------
   1     3        4      0      4      1     0       -
   6     0        0      -      0      0     -       -
   11    2        3      -      3      0     -       -
  ---------------------------------------------------------------------------
   Nbr-BasicBSSID   Chl   Intf   SignalStrength   Type
                          (%)    (dBm)
  ---------------------------------------------------------------------------
   d89d-6740-1670   1     0      -88              Managed
   d89d-6740-6e50   1     0      -84              Managed
   d89d-6741-1210   11    0      -54              Managed
   d89d-6741-12d0   1     0      -55              Managed
   d89d-6741-d030   11    0      -57              Managed
-------------------------------------------------------------------------------
<HP-7500-Wlan>



Here is same AP now looking at the RRM History


<HP-7500-Wlan>dis wlan ap name pacific-hs-1-74 rrm-history
                         AP RRM History
-------------------------------------------------------------------------------
Flags : I - Interference,   P - Packets discarded,    F - Retransmission,
         R - Radar,          C - Coverage,             O - Others
-------------------------------------------------------------------------------

                         AP RRM History : pacific-hs-1-74
-------------------------------------------------------------------------------
Radio : 1                                Basic BSSID : d89d-6741-d000
-------------------------------------------------------------------------------
        Chl Power Load Util Intf PER Retry Reason  Date         Time
            (dBm) (%)  (%)  (%)  (%) (%)           (yyyy-mm-dd) (hh:mm:ss)
-------------------------------------------------------------------------------
Before 48  14    1    0    1    0   0     ----C-  2014-01-08   07:18:44                          Note that a power change on Radio 5.8 gig was made / not a channel change
After  48  11    1    0    1    0   0     -       -            -
-------------------------------------------------------------------------------
Before 48  11    1    0    1    0   0     ----C-  2014-01-08   09:18:44                          Another power change on radio 1 5.8 gig made at next interval to lower to min floor level…
After  48  10    1    0    1    0   0     -       -            -
-------------------------------------------------------------------------------
Radio : 2                                Basic BSSID : d89d-6741-d010
-------------------------------------------------------------------------------
        Chl Power Load Util Intf PER Retry Reason  Date         Time
            (dBm) (%)  (%)  (%)  (%) (%)           (yyyy-mm-dd) (hh:mm:ss)
-------------------------------------------------------------------------------
Before 6   14    31   0    31   29  0     -P--C-  2014-01-08   07:18:44                       Radio 2 – 2.4 gig has much higher load and interfernace levels – note before and after levels after changing channel and lowering power
After  1   11    0    0    0    0   0     -       -            -
-------------------------------------------------------------------------------
Before 1   11    5    0    5    0   0     ----C-  2014-02-19   21:18:54                            Radio 2 – 2.4 gig kept same channel but increased power
After  1   14    5    0    5    0   0     -       -            -
-------------------------------------------------------------------------------
Before 1   14    4    0    4    0   0     ----C-  2014-02-19   23:18:54                            Radio 2 – 2.4 gig kept same channel but lowered power
After  1   11    3    0    3    0   0     -       -            -
-------------------------------------------------------------------------------
Before 1   11    3    0    3    0   0     ----C-  2014-02-20   01:18:54                            Radio 2 – 2.4 gig kept same channel but lowered power to min level
After  1   8     3    0    3    0   0     -       -            -
-------------------------------------------------------------------------------
<HP-7500-Wlan>
<HP-7500-Wlan>
<HP-7500-Wlan>

<HP-7500-Wlan>

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