yesterday I updated two VCS-Control and two VCS-Expressway. One pair from X7.2.2 to X7.2.3 and one from X8.1 to X8.1.1. On the VCS-Control everything worked fine, but on both VCS-E update I ran into "problems":
The Update cleared some configurations or set them to the default configuration. For example the DefaultSubzone on the VCS-Expressway was resetted, all links, Zones (except the Default Zone) an IP Routes were deleted, call policy mode was set to off and so on.
On the second device I tried to save a backup befor updating and restore it after. But that don't work because of the different versions. So I think at the moment the VCS-Expressway has to be manually checked and reconfigured after the update.
Yesterday I did half a dozen VCS-Controls and an Expressway Cluster - all to X7.2.3 (from X7.2.2) and didn't have any issues such as you're mentioning - the upgrades all went smoothly with no issues or config changes required.
Wayne -- Please remember to rate responses and to mark your question as answered if appropriate.
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