Environment : Airwave version 7.7 + , monitoring/managing Aruba controller
Unable to Import the config of a controller, and end up showing mismatch on Airwave.
when we doing an import configuration, if we do a # tail -f /var/log/httpd/error_log from the airwave CLI, we could see the below crash:
Explains that in the controller config, we enabled WMM in SSID profile and configured the DSCP mapping with two integer values, instead of one. in this above example error, we configured "24,46".
We could check on the controller by doing this: (controller's CLI)
# show wlan ssid-profile <ssid profile name>
Please look in the output and If you see two values for anyone of the dscp mapping for wmm (wireless multimedia) (usually there will be 4) for example, for this SSID profile we can see 24,46 for DSCP mapping for WMM voice AC.
(controller) #show wlan ssid-profile <test ssid>
SSID Profile "test ssid"
SSID enable Enabled
DTIM Interval 2 beacon periods
802.11a Basic Rates 6 12 24
802.11a Transmit Rates 6 9 12 18 24
802.11g Basic Rates 1 2
802.11g Transmit Rates 1 2 5 6 9 11 12 18 24 36 48 54
Station Ageout Time 1000 sec
Max Transmit Attempts 3
RTS Threshold 2333 bytes
Short Preamble Enabled
Max Associations 64
Wireless Multimedia (WMM) Enabled
Wireless Multimedia U-APSD (WMM-UAPSD) Powersave Disabled
WMM TSPEC Min Inactivity Interval 0 msec
Override DSCP mappings for WMM clients Disabled
DSCP mapping for WMM voice AC 24,46
DSCP mapping for WMM video AC N/A
DSCP mapping for WMM best-effort AC N/A
DSCP mapping for WMM background AC N/A
Multiple Tx Replay Counters Disabled
Hide SSID Enabled
Deny_Broadcast Probes Enabled
This setting is to set the priority for that module's traffic. if we have two values, it is causing this issue, we could change that value to one. if nothing configured for wmm settings on the controller the default value will be one integer. for more info on how to configure, WMM settings, what are the default values etc, please refer to the links in related links section.
# config t
# wlan ssid-profile <ssid profile name>
# wmm-vo-dscp <enter one value>
Hit enter to save it.
wmm-vo-dscp is for voice traffic and likewise below are for others.
(TR-WLC7210-01) (SSID Profile "test-VOIP") #wmm-?
wmm-be-dscp DSCP used to map WMM best-effort traffic
wmm-bk-dscp DSCP used to map WMM background traffic
wmm-override-dscp-map.. Override DSCP Mappings for WMM clients
wmm-ts-min-inact-int WMM TSPEC Min Inactivity Interval(0 - 3600000 msecs)
wmm-uapsd Wireless Multimedia (WMM) UAPSD Powersave
wmm-vi-dscp DSCP used to map WMM video traffic
wmm-vo-dscp DSCP used to map WMM voice traffic
After making this change, please do an audit and re-import the config, we should be able to import.