WLC RF Group Leader election - can config. influence this?

Hi,
Can config. influence this?
Regards, MH

Hi Mark,
Hope all is well with you :) The answer to this question is not really. Have a look at why this is;
RF Group Leader
The members of an RF group elect an RF group leader to maintain a "master" power and channel scheme for the group. The RF group leader is dynamically chosen and cannot be selected by the user. In addition, the RF group leader can change at any time, depending on the RRM algorithm calculations.
The RF group leader analyzes real-time radio data collected by the system and calculates the master power and channel plan. The RRM algorithms try to optimize around a signal strength of -65 dBm between all access points and to avoid 802.11 co-channel interference and contention as well as non-802.11 interference. The RRM algorithms employ dampening calculations to minimize system-wide dynamic changes. The end result is dynamically calculated optimal power and channel planning that is responsive to an always changing RF environment.
The RRM algorithms run at a specified updated interval, which is 600 seconds by default. Between update intervals, the RF group leader sends keep-alive messages to each of the RF group members and collects real-time RF data.
The RF Group Name is an ASCII string configured per wireless LAN controller (WLC). The grouping algorithm elects the RF Group leader that, in turn, calculates the Transmit Power Control (TPC) and Dynamic Channel Assignment (DCA) for the entire RF Group. The exception is Coverage Hole algorithm (CHA), which is run per WLC. Because RF Grouping is dynamic, and the algorithm runs at 600-second intervals by default, there might be an instance where new neighbors are heard (or existing neighbors are no longer heard). This causes a change in the RF Group that could result in the election of a new Leader (for one or multiple logical RF Groups). At this instance, the Tx Power Threshold of the new group leader is used in the TPC algorithm. If the value of this threshold is inconsistent across multiple controllers that share the same RF Group Name, this can result in discrepancies in resultant Tx power levels when the TPC is run.
From this good doc;
Radio Resource Management under Unified Wireless Networks
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008072c759.shtml
Hope this helps!
Rob

Similar Messages

  • Until recently, the "From" tab showed the actual person who sent an e-mail. Now it shows only the Yahoo group. How can I change this back?

    This happened very suddenly on the 15th, without my being aware of having changed anything. How do I get the From tab to show the sender, not the Yahoo! group name?

    I have seen a couple of reports now but have not observed it in any of my yahoo groups.
    Could you please forward as an attachment [message menu (ALt+M) > forward >as attachment] a mail from such a list so I can examine the headers. Email unicorn dot consulting at gmail dot com

  • New member of ora_dba group on server can not connect as sysdba.

    We have added a new dba to our staff and have made him a member of the local group Ora_dba on the server (9i windows). He can not connect as sysdba but a long-time dba can.
    SQL> connect / @s1 as sysdba
    ORA-01031: insufficient privileges
    I know this is a very old Oracle challenge so I am sure someone can give us some guidance!
    Thanks

    1) Examine the contents of the file located at:
    $ORACLE_HOME/rdbms/lib/config.c
    This file lists the operating-system groups that have administrative access, notably the one listed in the line containing "SS_DBA_GROUP". Is t
    he UNIX account you are using to connect / as sysdba a member of this OS group?
    2) Examine the contents of the file located at:
    $ORACLE_HOME/network/admin/sqlnet.ora
    Within this file, the line containing the string "SQLNET.AUTHENTICATION_SERVICES" should either be commented out, or be set to SQLNET.AUTHENTICATION_SERVICES = (BEQ,NONE)
    3) Check the value of $ORACLE_SID for the UNIX account(s) connecting / as sysdba to ensure it is correct.

  • Entering an keyword in the adressbar leads to google and not to the website as in the older version; how can I change this?

    ''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/806111]''
    When I enter any keyword in the adress bar, only the google search enginge opens instead of leading direct to the desired website. In the older FF version it always lead to the website directly.
    How can I change this?
    Many Thanks!

    The change between Firefox 3.6.* and Firefox 4 is how location bar search works. In Firefox 3.6 it uses Google "Browse by name" search. With the browse by name search, it performs a Google search and if there is a clear match it will take you to the site, otherwise it shows the Google search result. With Firefox 4 it just performs a Google search if you type something which is not recognised as a URL.
    To get the Firefox 3.6 behaviour on Firefox 4 you need to change a hidden preference.
    # Type '''about:config''' into the location bar and press enter
    # Accept the warning message that appears, you will be taken to a list of preferences
    # Locate the preference '''keyword.URL''', double-click on it and change its value to the link shown below
    [http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q= http://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=]
    If you prefer, you can also do this by installing the Browse by Name extension - https://addons.mozilla.org/firefox/addon/browse-by-name

  • Let group leader change his memeber's pwd without giving him 'alter user' p

    Hi, all
    Is there any way that I can let a group leader to reset his own member's password without giving him the 'alter user' privilege ?
    I know I can use following simplified procedure to allow one person to change his own password, but I am looking for a way to let leader to reset when his members forget their pwd, and the following script can't work. I also created the synonym and grant 'execute on' to him. Can someone help me on this?
    Thanks in advance.
    CREATE OR REPLACE PROCEDURE change_pwd ( v_username in varchar2, v_pwd in varchar2)
    authid current_user
    is
    BEGIN
    execute immediate 'alter user '||m_username||' identified by '||v_pwd ;
    END ;
    ----

    SQL> @example
    SQL> spool capture.log
    SQL> create user alladmin identified by adminall;
    User created.
    SQL> grant connect to alladmin;
    Grant succeeded.
    SQL> grant resource to alladmin;
    Grant succeeded.
    SQL> grant alter user to alladmin;
    Grant succeeded.
    SQL> create user member1 identified by No1knows;
    User created.
    SQL> grant connect to member1;
    Grant succeeded.
    SQL> create user member2 identified by No1knows;
    User created.
    SQL> grant connect to member2;
    Grant succeeded.
    SQL> create user gl1 identified by secret;
    User created.
    SQL> grant connect to gl1;
    Grant succeeded.
    SQL> grant resource to gl1;
    Grant succeeded.
    SQL> connect alladmin/adminall
    Connected.
    SQL> CREATE OR REPLACE PROCEDURE change_pwd ( v_username in varchar2)
      2  is
      3  m_username varchar2(100);
      4  v_pwd varchar2(30) := 'FUBAR1';
      5  BEGIN
      6  select user into m_username from dual;
      7  if (m_username = 'GL1')
      8  then
      9       execute immediate 'alter user '||v_username||' identified by '||v_pwd ;
    10  end if;
    11  END ;
    12  /
    Procedure created.
    SQL> grant execute on change_pwd to gl1;
    Grant succeeded.
    SQL> connect gl1/secret
    Connected.
    SQL> exec alladmin.change_pwd('MEMBER1');
    PL/SQL procedure successfully completed.
    SQL> exec alladmin.change_pwd('MEMBER2');
    PL/SQL procedure successfully completed.
    SQL> connect member1/FUBAR1
    Connected.
    SQL> select user from dual;
    USER
    MEMBER1
    SQL> connect member2/FUBAR1
    Connected.
    SQL> select user from dual;
    USER
    MEMBER2
    SQL> exit
    Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
    With the Partitioning, OLAP and Data Mining optionsAny more questions?

  • RRM RF Group Leader not updating RF Group Members

    We cannot get RRM RF Group Leader to update the RF Group Members. On our group leader controller, it sees our other controllers in the RF group. We have APs assigned to all four of our controllers and the tx power and dynamic channel assignment do not work. When we put all of the APs onto the RF group leader controller, the tx power levels and dynamic channel assignment both work as they are supposed to. All of our settings on our controllers are exactly the same. I guess my question is, is there a set of specific settings that I need to apply before RRM starts to update from the RF group leader?

    We have all four of our controllers on the same RF Domain Name. We have verified the status of the Mobility Group using eping and mping. We split up our APs on two of our controllers that are in the same 6500 and it still would not update from the RRM Group Leader. We "tricked" the WLC into moving the group leader onto the other controller that was in the same 6500. The same thing happened, now the 2nd controller won't send updates to the original controller. We moved all the APs onto the group leader and everything worked fine.

  • I have photos I want to group together in one album, but can't do this because some may have the same number. How can I combine them all into one album?

    I have photos I want to group together in one album, but can't do this because some may have the same number. How can I combine them all into one album? I was trying to move several albums onto a USB drive and it stated all other files exist at this location.  They are pictures taken at different times and have the same number I guess.

    In iPhoto albums may contain photos with the same file name - iPhoto handles that just fine
    If you are exporting them to move somewhere else use the sequential file name feature of export to give each file a unique name
    LN

  • My wife's Apple ID is shown as belonging to a family sharing group, but we can't determine what is the id of the owner.  How can she remove herself from the group?

    my wife's apple ID is shown as belonging to another family sharing group. We can' t figure out the  Apple ID of the 'owner' of the group.  Is there any way to remove oneself from a family sharing group when you are not the owner?  Or how can we find the log in id (Apple ID) of the owner?

    i partially solved the problem, however still need some help.  My wife has made purchases under two different Apple ids.  I tried t re-set her iPad with her main ID but it is apparently part of a family.  I re-set  her iPad iCloud using her secondary ID.  The sharing of iTunes shows her main apple ID.  The settings iTunes is also set to her main Apple id.  I sent an invite from her iPad icloud family sharing to her main Apple ID, but when I attempted to consent to join it says she is already a member.  So I am guessing this is because in the family set up under her secondary ID that her main id is the iTunes account that is shared.  My question is could I change the iTunes shared under her name as owner to her secondary account, then invite her main account to join as a distinct member?  I am nervous about doing this for two reasons 1.  There is a warning when changing the shared iTunes account that says you can't join another group for 90 days. 2. I may still get the message that her main account is still a member of the group even though it doesn't show up, and then not able to revert back.
    if you follow this can someone offer some help,
    thanks
    note. This whole problem when we had to change a Apple id when we changed Internet service providers.

  • I'm new to Photoshop Elements and just getting started.  While in the organizer I have one group of photos up to learn with and now it says Edit in Progress with a padlock icon.  How can I remove this so that the photos will be restored to normal?

    I'm new to Photoshop Elements and just getting started.  While in the organizer I have one group of photos up to learn with and now it says Edit in Progress with a padlock icon.  How can I remove this so that the photos will be restored to normal?

    Go back to the editor and close the photo there.

  • How can I fix this permissions "Library/Printers-should be 80 group is 0. Permissions differ. And User differs on "private/var/db/displaypolicyd" should be 0; Group is 244?

    How can I fix this on my 2014 iMac, please?
    Verifying permissions for “Macintosh HD”Group differs on “Library/Printers/InstalledPrinters.plist”; should be 80; group is 0.Permissions differ on “Library/Printers/InstalledPrinters.plist”; should be -rw-rw-rw- ; they are -rw-r--r-- .User differs on “private/var/db/displaypolicyd”; should be 0; user is 244.Group differs on “private/var/db/displaypolicyd”; should be 0; group is 244.
    I run the "fix" and it seemingly does, but if I verify permissions again later it returns.
    Thank you!

    It's not an error but an informative message that you can safely ignore. it's innocuous.

  • The Podcast app doesn't group non-itunes files correctly on devices (but does in itunes.) How can I change this?

    I tried using the Podcast App but found it didn't group non-itunes downloads correctly on the iPhone or iPad whereas with just the Music and Video apps previously, it did.  I have been into the file settings and change every attribute but it still clumps them all into one groups. In itunes on the PC they do group correctly. Anyone else had this problem? Can it be corrected?
    I was happy to delete Podcast app and go back to just Music & video apps but now I now fine that if I want, for example, to download TedTalk podcast I can't.

    I am dealing with the exact same issue.. any advice would be greatly appreciated!

  • Why a customer or vendor group One Time can't using?

    Why a customer or vendor group One Time can't using with special G/L ? for example Donw payment or chque receipt
    Many thanks for any answer?

    Hi Blue,
    Please refer OSS notes 19638
    Hope this helps.
    Please assign points as way to say thanks

  • My ipad is blocked with icons of a usb lead to be connected to itunes.  How can i do this when i don't have anything else apple?

    My ipad2 is blocked with an icon of a usb lead connecting to itines.  How can i do this when i don't have anything else apple?

    i mean itunes

  • WHAT is "Hibernate this Group" and why can't I find ANY information on this and HOW to get accidentally hibernated groups BACK???

    This is REALLY getting me frustrated! What is "Hibernate this Group"? Why can't I find any information on it? Why can't I get groups back that have been accidentally "hibernated"? There is a "moon" symbol on my upper right screen that says "Hibernate this Group" and I don't know what it does or how it works! AND I accidentally "hibernated" a group when I clicked on it too long and a bunch of "zzz's" showed up and then it was GONE! How do I get it all back? And why isn't there a tech center I can contact to help with this???

    This sounds like some third-party app or extension, because this functionality is not in Firefox by default. [[Reset Firefox – easily fix most problems]] should remove it

  • The selected objects cannot be joined as they are invalid objects,( Compound paths, closed paths, Text Objects, Graphs, Live Paint group). You can use Join command to connect two or more paths, paths in groups; ot to close an open path.

    Hi I was trying to join two Ractangle Tool objects but getting this type of Error in illustrator cs6 :-
    The selected objects cannot be joined as they are invalid objects,( Compound paths, closed paths, Text Objects, Graphs, Live Paint group).
    You can use Join command to connect two or more paths, paths in groups; ot to close an open path.
    Please assist me asap.

    Yes, I know this is an old post, but I’m trying to clean them up. Did you solve this problem, if so what was the solution?
    This sound like a firewall issue. I would start by disabling the firewall and seeing if you can connect. If this works then you know where the problem is,
    Garth Jones | My blogs: Enhansoft and
    Old Blog site | Twitter:
    @GarthMJ

Maybe you are looking for