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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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Chapter 12 SNMP
SNMP Basic Components
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 Release 9.1 and 9.2, you can retrieve automatic in service state and soak time through the SNMP and
Transaction Language One (TL1) interfaces.
Note The CERENT-MSDWDM-MIB.mib and CERENT-FC-MIB.mib in the CiscoV2 directory support 64-bit
performance monitoring counters. However, 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.
Figure 12-1 illustrates a basic network managed by SNMP.
Figure 12-1 Basic Network Managed by SNMP
12.2 SNMP Basic Components
An SNMP-managed network consists of three primary components: managed devices, agents, and
management systems. A managed device is a network node that contains an SNMP agent and resides on
an SNMP-managed network. Managed devices collect and store management information and use
SNMP to make this information available to management systems that use SNMP. Managed devices
include routers, access servers, switches, bridges, hubs, computer hosts, and network elements such as
the ONS 15310-MA SDH.
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