Cisco 15327 - Manual (Page 368)

22-2
Ethernet Card Software Feature and Configuration Guide, R7.2
Chapter 22 Configuring SNMP
SNMP on the ML-Series Card
• Using SNMP to Access MIB Variables, page 22-4
• Supported MIBs, page 22-5
• SNMP Notifications, page 22-5
SNMP on the ML-Series Card
SNMP operates in two different ways on the ONS 15454 SONET/SDH ML-Series card. One way is to
communicate directly. This is also how SNMP operates on a small Catalyst switch, using direct
communication, Cisco IOS, and the data plane. An SNMP agent interacting with an ML-Series card can
also communicate through the ONS 15454 SONET/SDH and the SONET network. Both ways are shown
in
Figure 22-1 .
Figure 22-1 SNMP on the ML-Series Card Example
When the ONS 15454 SONET/SDH node relays the ML-Series card SNMP communication, the node
uses a proxy agent to accept, validate, and forward get, getNext, and set requests to the ML-Series card.
These ML-Series card requests contain the slot identification of the ML-Series card cards to distinguish
the request from a general SNMP request for the ONS 15454 SONET/SDH node. The responses from
the ML-Series card are then relayed by the ONS 15454 SONET/SDH node to the requesting SNMP
agents.
SNMP access is useful for collecting Cisco IOS data plane events, alarms, and statistics for the
ML-Series card. All SNMP events and traps defined on the ML-Series card are reported to the
TCC2/TCC2P card SNMP agent by default. If the TCC2/TCC2P card SNMP agent is active, these events
are sent to the defined SNMP server.
Data
Network
TCC
ONS 15454
(GNE)
ONS 15454 (GNE)
TCC
ML Series
IOS SNMP
Agent
SONET/SDH
Network
Ethernet/IP
Ethernet/IP
Data Plane Backplane
Connection
SDCC
SNMP Manager
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