Comtech EF Data SLM-5650A - Manual (Page 135)

SLM-5650A Satellite Modem Revision 8
Ethernet-Based Management MN-SLM5650A
6–5
6.4 SNMP Interface
The Simple Network Management Protocol (SNMP) is an Internet-standard protocol for managing
devices on IP networks. An SNMP-managed network consists of three key components:
• The managed device. This includes the SLM-5650A Satellite Modem.
• The SNMP Agent. The software that runs on the SLM-5650A. The SLM-5650A SNMP
Agent supports SNMPv1, SNMPv2c, and SNMPv3.
• The user-supplied Network Management System (NMS). The software that runs on
the manager.
6.4.1 Management Information Base (MIB) Files
MIB files are used for SNMP remote management of a unique device. A MIB file consists of a
tree of nodes called Object Identifiers (OIDs). Each OID provides remote management of a
particular function. These MIB files should be compiled in a user-supplied MIB Browser or
SNMP Network Monitoring System server.
The following MIB files are associated with the SLM-5650A:
MIB File/Name
( ‘x’ indicates revision letter)
Description
fw10874-2x.mib
ComtechEFData MIB file
ComtechEFData MIB file gives the root tree for ALL Comtech EF Data products and
consists of only the following OID:
Name: comtechEFData
Type: MODULE-IDENTITY
OID: 1.3.6.1.4.1.6247
Full path:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).comtechEFData(6247)
Module: ComtechEFData
FW-0000049x.mib
SLM-5650A OID MIB File
MIB file consists of all of the OID’s for management of the modem functions.
FW-0000050x.mib
SLM-5650A Traps MIB file
Trap MIB file is provided for SNMPv1 traps common for base modems.
6.4.2 SNMP Community Strings
In SNMP v1/v2c, the SNMP Community String is sent unencrypted in the SNMP
packets. Caution must be taken by the network administrator to ensure that
SNMP packets travel only over a secure and private network if security is a
concern.
The SLM-5650A uses Community Strings as a password scheme that provides authentication
before gaining access to the modem agent’s MIBs. They are used to authenticate users and
determine access privileges to the SNMP agent.