Filter
Top Products
11-6
Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 11 SNMP
SNMP Traps
A managed object (sometimes called a MIB object) is one of any specific characteristics of a managed
device. Managed objects consist of one or more object instances (variables).
The ONS 15454 MIBs are included on the software CD that ships with the ONS 15454. Compile these
MIBs in the following order. If you do not follow the order, one or more MIB files might not compile.
1. CERENT-GLOBAL-REGISTRY.mib
2. CERENT-TC.mib
3. CERENT-454.mib
4. CERENT-GENERIC.mib
If you cannot compile the ONS 15454 MIBs, call the Technical Assistance Center (TAC) at
1-877-323-7368.
11.5 SNMP Traps
The ONS 15454 can receive SNMP requests from a number of SNMP managers and send traps to ten
trap receivers. The ONS 15454 generates all alarms and events as SNMP traps.
The ONS 15454 generates traps containing an object ID that uniquely identifies the alarm. An entity
identifier uniquely identifies the entity that generated the alarm (slot, port, STS, VT, BLSR, STP, etc.).
The traps give the severity of the alarm (critical, major, minor, event, etc.) and indicate whether the alarm
get-bulk-request Similar to a get-next-request, but this operation fills the get-response with
up to the max-repetition number of get-next interactions
trap An unsolicited message sent by an SNMP agent to an SNMP manager
indicating that an event has occurred
Table 11-1 SNMP Message Types
Operation Description
Table 11-2 IETF Standard MIBs Implemented in the ONS 15454 SNMP Agent
RFC# Module Name Title/Comments
1213
+1907
RFC1213-MIB,
SNMPV2-MIB
MIB-II from RFC1213 with enhancement from RFC1907
for v2
1493 BRIDGE-MIB Bridge/Spanning Tree (SNMPv1 MIB)
1757 RMON-MIB Remote monitoring (RMON) Ethernet
2737 ENTITY-MIB Entity MIB using SMI v2 (version II)
2233 IF-MIB Interface evolution (enhances MIB-II)
2358 Etherlike-MIB Ethernet-like interface (SNMPv2 MIB)
2495 DS1-MIB DS-1/E1
2496 DS3-MIB DS-3/E3
2558 SONET-MIB SONET
2674 P-BRIDGE-MIB,
Q-BRIDGE-MIB
P-Bridge and Q-Bridge MIB