The compression feature enables VVR to send data over the network in a compressed format from a Primary to one or more Secondary hosts. It reduces network bandwidth consumption by VVR. This feature is particularly useful in scenarios where there is low available bandwidth or where the bandwidth is shared among several applications. Purchasing an external compression software or hardware for data transfer can prove costly. Hence, compression feature in VVR is a cost-effective alternative in such scenarios.

VVR uses the zlib library for performing compression and decompression. For more information on the zlib compression library, see http://www.zlib.net