With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cslbxHttpReturnCodeTable
Cisco Server Load Balancing Http Return Code Table
1.3.6.1.4.1.9.9.254.1.5.3
Table of rules associating ReturnCode maps and intervals of HTTP return codes with actions to perform when particular HTTP return codes are seen in the data stream.
Back to CISCO-SLB-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cslbxHttpReturnCodeTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.