02-11-2009 02:58 AM - edited 07-03-2021 05:08 PM
Hi,
as the technote "Radio Ressource Management under UWN" (<A HREF="javascript:newWin('http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008072c759.shtml')">http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008072c759.shtml</A>) stated I tried to lower the power control threshold from currently -65dBm to -70dBm. When I entered "config advanced 802.11a tx-power-control-thresh 70" into the CLI I only get the response "Unable to set tx power control threshold."
I am using firmware 5.2.157. Any ideas?
02-18-2009 09:02 AM
It should already be set to neg 70 for 5.2.157 code. You can't chane to what is already set.
02-19-2009 02:26 AM
We have the controllers since 3.2 and thats why the power setting is still at -65.
(Cisco Controller) >show advanced 802.11b txpower
Automatic Transmit Power Assignment
Transmit Power Assignment Mode................. AUTO
Transmit Power Update Interval................. 600 seconds
Transmit Power Threshold....................... -65 dBm
Transmit Power Neighbor Count.................. 3 APs
Transmit Power Update Contribution............. SNI.
Transmit Power Assignment Leader............... 00:18:73:36:68:c0
Last Run....................................... 519 seconds ago
02-19-2009 02:41 AM
Before one asks: yes, I did the intermediate updates as Cisco instructed in the release notes. I did not jump from 3.2 to 5.2 directly. ;-) And the release notes do not indicate that the change will be done automaticall during a firmware upgrade.
02-19-2009 04:27 AM
Did you notice the sentax in your two posts? You attempted to set the RRM for 802.11a. You wanted to change it for 802.11b. Have you tried the same command for 802.11b radios?
02-19-2009 09:04 AM
Yes. The behaviour is the same. I get "Unable to set tx power control threshold." when trying to change a or b and the output shows -65 on a and b/g too. It was only a coincidence that one example was 802.11a and the other 802.11b.
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