This 64-bit counter tracks the cumulative bytes of remote-access traffic after decompression has been applied, meaning it reflects the actual amount of usable data delivered to the internal network rather than the smaller compressed size that traveled over the wire. It matters when compression is in use on remote-access sessions, since comparing this value against crasGlobalInOctets reveals the actual compression ratio being achieved in practice. If compression is not being used at all on any session, per the description this value will exactly match crasGlobalInOctets, so a persistent gap between the two confirms compression is actively reducing on-the-wire traffic.