When deploying multiple web bridges Cisco recommends three methods of preventing calls from dropping if WebRTC clients rehome to different web bridges: Deploy Expressway for external access and use the Expressway CMS WebRTC proxy to load balance across the Web Bridges. Use either GeoDNS or IP address hashing to select the IP address the DNS will return. Use the CMS Load Balancer component. But with this solution, you then have the problem of deploying multiple Load Balancers. I understand the concept of IP address hashing to ensure that the same CMS server address is always returned but I can't find any information on how to configure this. Is this a feature a Microsoft DNS server can provide or is it something that a public DNS service provider would offer?   Do you use the same process to allow clients to discover multiple load balancers as you would to deploy multiple web bridges?   Thanks,     Joey   ... View more

Hey,   The 11.x SRND says 20 and the CSR 11 upgrade guide says 21. Which is correct?     Thanks,         Joey   ... View more

Hi, I've downloaded the preconfigured BE6000 10.6 "preconfigured" images. The names of these files have "PreInst" in them but they are identified as "Preconfigured".  Downloads Home -> Products -> Unified Communications -> Call Control -> Mid-Market Call Control -> Business Edition 6000 -> Business Edition 6000 Version 10.6 -> Business Edition 6000 Applications-10.6   I can't find any information on what's configured and how you can customize these. I tried running the "utils import config" to load a platform.xml configuration but this failed on CUCM: the "A Cisco DB" service never starts. I was unable to change the IP addresses using the CLI commands. I'm not even sure if this is supported. Is the intent that you use these images with the exact same names and addresses as delivered without change? If so is there documentation somewhere that shows you these values, and what can and cannot be changed? Can you subsequently add subscribers to these clusters? For the "preinstalled images", are these images where the installation was done with "Skip" being chosen on the screen immediately following the media check, so that just the configuration need be applied? I'm assuming with these I can attach the floppy with the PlatformConfig.xml and they'll install just fine. What about "touchless cluster install". Can we use the preinstalled images with this feature to quickly install a complete cluster? I'm just trying to understand the options for cluster deployment: Install it yourself including with touchless installation of each server (answer file on floppy) Touchless Cluster Install using base ISOs (but I can do my subscribers at the same time all using answer files) Touchless Cluster Install using "preinstalled images". Can I do this? Can I clone the base image to create copies for my subscribers? "Preconfigured": Can't make any changes to names and addresses Using Prime Collaboration Deployment. Is this a good choice for doing a deployment or more suitable for upgrades? Any others? Any of these wrong?   Thanks,       Joey         ... View more

Hi, During a maintenance window we moved CUCM and CUC Publishers to different datastores. The VMs were shutdown do according to the documentation this is not a "vMotion", and we believe this is supported.   Afterwards we have a registration conflict in ELM indicating that the product instances are being managed by a different ELM server. Deleting the product instances from inventory in ELM doesn't help because the product instances still think they are being managed by a different ELM. Is there a way to go to the product instances and say "stop being managed by that ELM instance"?     Thanks,         Joey   ... View more

Hi, I have a situation where all calls between sites are returning the error "Out of Bandwidth". RTMT shows no bandwidth available for any site. We have locations configured for every site but no bandwidth restrictions are in place so far, so we should never see this message. We tried restarting the LBM service and even restarted all of our servers. No luck. The locations were imported using BAT from an export on a cluster where everything worked.   Any ideas?   Thanks,     Joey CUCM v9.1.2.12901-3   ... View more