All MIBs › NMS-EPON-LLID-TRAP
Description: Defines SNMP trap notifications for LLID OAM session state changes on NMS EPON passive optical network equipment
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What Is NMS-EPON-LLID-TRAP?
NMS-EPON-LLID-TRAP is a notification-only MIB from NMS Communications defining SNMP trap notifications for changes in LLID (Logical Link Identifier) OAM session state on EPON (Ethernet Passive Optical Network) equipment. LLIDs identify individual ONU (optical network unit) logical links multiplexed over a shared PON fiber, so this MIB's traps signal when a specific subscriber/ONU link's OAM session comes up, goes down, or otherwise changes state. Its monitoring value is squarely in the faults/traps category for access-network hardware status: it lets an EPON OLT's manager be alerted in near-real-time when a subscriber's optical link drops or recovers, critical for detecting fiber cuts, ONU power loss, or optical signal degradation on a per-subscriber basis. It depends on the broader NMS EPON OLT MIB family, such as the OLT PON port and chip MIBs, that define the underlying LLID/ONU data model this trap references. It is deployed on NMS Communications EPON OLT (optical line terminal) equipment in FTTH/PON access networks. Network engineers evaluating or troubleshooting this functionality can download the NMS-EPON-LLID-TRAP file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in NMS-EPON-LLID-TRAP. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- NMS Communications EPON OLT (optical line terminal)
Monitoring Examples
With no data-object sample_objects available since this is a trap-definition module, a concrete monitoring scenario would involve an operator's NMS subscribing to this LLID state-change trap so that when a subscriber's ONU loses its OAM session, for example due to a fiber break, the OLT immediately notifies the management station rather than the fault being discovered only on the next polling cycle.
Imported Objects
From NMS-EPON-LLID
| llidIfIndex | OBJECT-TYPE |
| llidToEponPortDiid | OBJECT-TYPE |
| llidsequenceNo | OBJECT-TYPE |
From NMS-EPON-ONU
| onuID | OBJECT-TYPE |
From NMS-SMI
| nmsEPONGroup | OBJECT-IDENTITY |
From RFC1213-MIB
| ifDescr |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| NOTIFICATION-GROUP | |
| OBJECT-GROUP |
From SNMPv2-SMI
| Integer32 | |
| MODULE-IDENTITY | |
| NOTIFICATION-TYPE | |
| OBJECT-TYPE | |
| Unsigned32 |
OIDs
RFC description
Monitors EPON (Ethernet Passive Optical Network) LLID status changes and OAM peering states.
Start monitoring NMS Communications EPON OLT (LLID OAM session traps) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.