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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 18 SNMP
18.1 SNMP Overview
information for generic DS-1, DS-3, SONET, and Ethernet read-only management. SNMP allows a
generic SNMP manager such as HP OpenView Network Node Manager (NNM) or Open Systems
Interconnection (OSI) NetExpert to be utilized for limited management functions.
The Cisco ONS 15454 supports SNMP Version 1 (SNMPv1) and SNMP Version 2c (SNMPv2c). These
versions share many features, but SNMPv2c includes additional protocol operations and 64-bit
performance monitoring support. This chapter describes both versions and gives SNMP configuration
parameters for the ONS 15454.
Note It is recommended that the SNMP Manager timeout value be set to 60 seconds. Under certain conditions,
if this value is lower than the recommended time, the TCC card can reset. However, the response time
depends on various parameters such as object being queried, complexity, and number of hops in the
node, etc.
Note In Software Release 8.0 and later, you can retrieve automatic in service (AINS) state and soak time
through the SNMP and Transaction Language One (TL1) interfaces.
Note The CERENT-MSDWDM-MIB.mib, CERENT-FC-MIB.mib, and CERENT-GENERIC-PM-MIB.mib
in the CiscoV2 directory support 64-bit performance monitoring counters. The SNMPv1 MIB in the
CiscoV1 directory does not contain 64-bit performance monitoring counters, but supports the lower and
higher word values of the corresponding 64-bit counter. The other MIB files in the CiscoV1 and CiscoV2
directories are identical in content and differ only in format.
The SNMP management interface supports the IEEE 802.3 LAG MIB.
Figure 18-1 illustrates the basic layout idea of an SNMP-managed network.
Figure 18-1 Basic Network Managed by SNMP
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