With IPHost Network Monitor you can run simple snmp requests against a Liebert device in your network.
lsUpsBypassNumLines
ls Ups Bypass Num Lines
1.3.6.1.4.1.476.1.1.1.2.13.3
The number of bypass lines utilized in this device. This entry indicates the number of rows in the bypass table.
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IPHost Network monitor allows you to monitor lsUpsBypassNumLines on Liebert device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Liebert uninterruptible power supplies right now.