While High bandwidth mode operates similarly to Direct mode, it utilizes digest files (also used by Low bandwidth mode) to track changed data blocks. The main difference between the two modes is the use of the “global cache”, as High bandwidth mode does not use it. Customers with no specific needs for bandwidth usage, or backup execution time, can also use direct connection with low bandwidth. Note that these values are the suggested operational limits of the WAN accelerator, or said differently, where the selected option performs at its best.
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