This Integer32 reports this interface's compression ratio encoded as an integer, where for example a value of 1582 represents a 1 to 15.82 ratio, and this object only exists at all once a compression circuit is actively created on that interface. An administrator uses this single number as a quick, directly comparable efficiency metric across interfaces without needing to do the underlying octet-count math themselves. For example, cnt2ifCompressionRatio reporting 1582 tells the admin this interface is compressing data at roughly 15.82 to 1, and its very presence confirms a compression circuit is active there.