With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cslbxProbeHeaderFieldName
Cisco SLB Health Monitor Probe Header Field Name
1.3.6.1.4.1.9.9.254.1.6.3.1.2
An HTTP header of this name is transmitted in the HTTP request sent by this probe.
Back to CISCO-SLB-HEALTH-MON-MIB MIB page.
IPHost Network monitor allows you to monitor cslbxProbeHeaderFieldName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.