Re: I would like to know if waas operates without central-manger
WAAS can operate without a central manager however there are some key features that do require a central manager to be operational within a network. For example if you use the disk encryption feature, the remote WAE where disk encryption is enabled will need to fetch the secure key from the central upon boot-up. The WAE will then be able to use the key to unlock the data cache. If the CM is not available then the remote will not be able to fetch the key and unlock the cache.
When a WAE device fails - you do have to wait for the router's wccp keep-alive process to time-out and the client will have to re-establish the TCP connections. Depending on the application the user might not even know that this is happening behind the screen.
P.S. if this answers your quesion, please mark it as answered with a 5.
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