358 3Com® VCX V7111 VoIP Gateway User GuideThe MIBs include: acPMMedia: for media (voice) related monitoring (for example, RTP, DSPs). acPMControl: for Control-Protocol related monitoring (for example, connections,commands). acPMAnalog: for analog channels in offhook state. acPMSystem: for general (system related) monitoring. The log trap, acPerformanceMonitoringThresholdCrossing (non-alarm), is sent outevery time the threshold of a Performance Monitored object is crossed. The severityfield is 'indeterminate' when the crossing is above the threshold and 'cleared' when itfalls bellow the threshold. The 'source' varbind in the trap indicates the object forwhich the threshold is being crossed.Total CountersThe counter’s attribute 'total' accumulates counter values since the board’s most recentrestart. The user can reset the total’s value by setting the Reset-Total object.Each MIB module has its own Reset Total object, as follows: PM-Analog: acPMAnalogConfigurationResetTotalCounters PM-Control: acPMControlConfigurationResetTotalCounters PM-Media: acPMMediaConfigurationResetTotalCounters PM-PSTN: acPMPSTNConfigurationResetTotalCounters PM-System: acPMSystemConfigurationResetTotalCountersSupported MIBsThe V7111 gateway contains an embedded SNMP Agent supporting the following MIBs: Standard MIB (MIB-2): The various SNMP values in the standard MIB are defined inRFC 1213. The standard MIB includes various objects to measure and monitor IPactivity, TCP activity, UDP activity, IP routes, TCP connections, interfaces and generalsystem indicators. RTP MIB: The RTP MIB is supported in conformance with the IETF RFC 2959. Itcontains objects relevant to the RTP streams generated and terminated by the deviceand to RTCP information related to these streams. NOTIFICATION-LOG-MIB: This standard MIB (RFC 3014 -iso.org.dod.internet.mgmt.mib-2) is supported as part of our implementation of carriergrade alarms. ALARM-MIB: This is an IETF MIB (RFC 3877) also supported as part of ourimplementation of carrier grade alarms. This MIB is a new standard and is thereforeunder the 3Com.acExperimental branch.
