The Basic Net-Snmp Commands - NEC Express5800/ftServer Administrator's Manual

SNMP Foundations and Concepts

The Basic Net-SNMP Commands

These tools provide a basic set of features for exercising and managing objects using
a standard command syntax and core functionality:
N O T E
Although these commands are documented as user
commands (man (1)), you should treat SNMP utilities as
the administrative tools they are, and closely limit
privileges to execute these commands.
snmpwalk—This command uses SNMP GETNEXT requests to query a network
entity for a tree of information that maps the managed objects by object ID
hierarchically. See snmpwalk(1). While this can return much information, take care
not to use this command on a heavily loaded net, since it can add significantly to
traffic.
snmpget— This command queries a single SNMP object using an SNMP GET
request. See snmpget(1).
snmpgetnext— This command uses GETNEXT requests to query network entities
for information.
snmpgetbulk—This command uses the SNMP GETBULK request to query a
network entity for quantities of information. See snmpgetbulk(1).
snmpdf—This command replicates df command functionality on a
network-accessible drive. The snmpdf command checks disk space on the remote
machine by examining the system's HOST-RESOURCES-MIB
hrStorageTable, or a UCD-SNMP-MIB's dskTable value. See snmpdf(1).
snmpstatus—This command queries a network entity to retrieve significant
information about a communicating object. See snmpstatus(1). The following
information is retrieved:
– The IP address of the entity.
– A textual description of the entity (sysDescr.0)
– The uptime of the entity's SNMP agent (sysUpTime.0)
– The sum of received packets on interfaces (ifInUCastPkts.*
+ ifInNUCastPkts.*)
– The sum of transmitted interface packets (ifOutUCastPkts.*
+ ifOutNUCastPkts.*)
– The number of IP input packets (ipInReceives.0)
– The number of IP output packets (ipOutRequests.0)
8-10 Express5800/ftServer: System Administrator's Guide for the Linux Operating System