With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbQosIPHCTcpSavedByte
Cisco Class Based Qos IPHC Tcp Saved Byte
1.3.6.1.4.1.9.9.166.1.23.1.1.21
The lower 32 bits count of TCP bytes that saved due to IPHC.
Back to CISCO-CLASS-BASED-QOS-MIB MIB page.
IPHost Network monitor allows you to monitor cbQosIPHCTcpSavedByte on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.