You are correct here :) The Primary or WDS Master will have a priority of perhaps 254 and the backups will be the same but with a lower priority number like 250 and 240.
If a user is connected to an Infrastructure AP and the WDS Master goes down they will not lose connectivity but there may be a bit of a hit on roaming until the Secondary WDS takes over (should be very quick).
Here is some other info;
The WDS device performs several tasks on your wireless LAN:
Advertises its WDS capability and participates in electing the best WDS device for your wireless LAN. When you configure your wireless LAN for WDS, you set up one device as the main WDS candidate and one or more additional devices as backup WDS candidates. If the main WDS device goes off line, one of the backup WDS devices takes its place.
Q. How many WDS backup candidates can I have? Can a WDS backup candidate still function as an AP in the WDS and report the information to the primary WDS?
A. There is no limit to the number of WDS backup candidates. Yes, the backup candidates still function as APs that report to the WDS master. In addition, only the primary WDS AP establishes WLSE security keys and registers with the WLSE in order to interact with the WLSE. Only if the primary WDS fails, the backup WDS takes up the role of an active WDS AP and goes on to register with the WLSE and establish security keys. As long as the primary WDS is active, the primary WDS functions as a normal AP that reports to the WDS master.
Q. If I have three WDS APs and they all fail, does the failure only affect WDS information, or all APs and clients? In other words, is the WDS a point of failure for the wireless network?
A. If your WDS masters fail, all APs fail as well. However, if the APs have all the configurations that are necessary for the AP to function independently, the APs begin to work without the WDS when the WDS device fails.
While testing the failover from primary to backup I was connected to an Infrastructure AP, I purposely disconnected my primary WDS to see if I would not lose connectivity and unfortunately I did lose my connectivity. Do you think I have something set up wrong? In order to re-establish the connection I had to disconnect to the SSID and then re-connect and then I was able to function with the backup WDS. Also, maybe I should mention that I am mac authenticating users via Cisco ACS.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...