With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ifMauJabberState
if Mau Jabber State
1.3.6.1.2.1.26.2.1.1.7
state is not 2, 3, or 4. The agent MUST always return other(1) for MAU type dot3MauTypeAUI. The value unknown(2) is returned when the MAU's true state is unknown; for example, when it is being initialized. If the MAU is not jabbering the agent returns noJabber(3). This is the 'normal' state. If the MAU is in jabber state the agent returns the jabbering(4) value.
Back to MAU-MIB MIB page.
IPHost Network monitor allows you to monitor ifMauJabberState 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.