With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sdlcLSOperEcho
sdlc LS Operational Echo
1.3.6.1.2.1.41.1.2.2.1.21
This object identifies whether the echo bit is in effect for this particular link station.
Back to SNA-SDLC-MIB MIB page.
IPHost Network monitor allows you to monitor sdlcLSOperEcho on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.