Is it possible to have 2 Publisher in 1:1 mode in a CCM cluster to avoid a single point of failure..in a cluster to support 20K+ users...If yes,then how to use the standby server or any option one can suggest towards redundancy...Though as per Cisco guideline this is not suggested but was thinking of a way for redundancy...
This is what subscribers will do. If the Pub goes down for any reason, the subs are there to handle the phone requests. You typically "divide your eggs" among the subscribers. Maybe even offload TFTP elsewhere, MOH on another server, split registered gateways among the servers. The more you divide, the less chance you have a major failure (if)
Thanks for reply... But let's say Publisher is totally down or crashed. In that scenario lot of things will be impacted (Like any changes-add,deletion and other stuff). I know that normal call will keep on running whoever are already registered with their respective subscriber but it will have impact if publisher is down for a day. Isn't a good idea to have a cluster too for publisher...Just thinking why in the desine there is no standby Publisher available(userbase of 20K+ is some what have different scenario)and when using Extensive Mobility feature I feel a outage will have big role on service..2nd, How many TFTP server is possible in a HUB & Spoke setup..
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...