CHAPTER
 
18-1
Cisco ONS 15454 DWDM Reference Manual, R8.5
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18
SNMP
This chapter explains Simple Network Management Protocol (SNMP) as implemented by the 
Cisco ONS 15454.
For SNMP setup information, refer to the Cisco ONS 15454 DWDM Procedure Guide. 
Note Unless otherwise specified, “ONS 15454” refers to both ANSI and ETSI shelf assemblies.
Chapter topics include:
 • 18.1  SNMP Overview, page 18-1
 • 18.2  Basic SNMP Components, page 18-3
 • 18.3  SNMP External Interface Requirement, page 18-4
 • 18.4  SNMP Version Support, page 18-4
 • 18.5  SNMP Message Types, page 18-4
 • 18.6  SNMP Management Information Bases, page 18-5
 • 18.7  SNMP Trap Content, page 18-9
 • 18.8  SNMP Community Names, page 18-17
 • 18.9  SNMP in Multishelf Management, page 18-17
 • 18.10  Proxy Over Firewalls, page 18-19
 • 18.11  Remote Monitoring, page 18-20
18.1 SNMP Overview 
SNMP is an application-layer communication protocol that allows ONS 15454 network devices to 
exchange management information among these systems and with other devices outside the network. 
Through SNMP, network administrators can manage network performance, find and solve network 
problems, and plan network growth. Up to 10 SNMP trap destinations and five concurrent 
Cisco Transport Controller (CTC) user sessions are allowed per node.
The ONS 15454 uses SNMP for asynchronous event notification to a network management system 
(NMS). ONS SNMP implementation uses standard Internet Engineering Task Force (IETF) management 
information bases (MIBs) to convey node-level inventory, fault, and performance management