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- retrieve important information from a network entity
/usr/sfw/bin/snmpstatus [common options] [-Cf] agent
The snmpstatus command is an SNMP application that retrieves several important statistics from a network entity.
The agent operand identifies a target SNMP agent, which is instrumented to monitor specified objects. At its simplest, the agent specification consists of a host name or an IPv4 address. In this situation, the command attempts communication with the agent using UDP/IPv4 to port 161 of the target host.
See the snmpcmd(1M) manual page for a full list of the possible formats for agent.
snmpstatus returns the following information:
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 all interfaces (ifInUCastPkts.* + ifInNUCastPkts.*)
the sum of transmitted packets on all interfaces (ifOutUCastPkts.* + ifOutNUCastPkts.*)
the number of IP input packets (ipInReceives.0)
the number of IP output packets (ipOutRequests.0)
For example, the command:
% snmpstatus -c public -v 1 netdev-kbox.cc.cmu.edu
produces output similar to the following:
[126.96.36.199]=>[Kinetics FastPath2] Up: 1 day, 4:43:31 Interfaces: 1, Recv/Trans packets: 262874/39867 | IP: 31603/15805
snmpstatus also checks the operational status of all interfaces (ifOperStatus.*). If it finds any that are not running, it reports themin a manner similar to this:
2 interfaces are down!
If the network entity has an error processing the request packet, an error packet is returned and a message is displayed, helping to pinpoint the way in which the request was malformed. snmpstatus will attempt to reform its request to eliminate the malformed variable (unless the -Cf option is given, see below), but this variable will then be missing from the displayed data.
The following options are supported:
See snmpcmd(1M) for a list of possible values for common options, as well as their descriptions.
By default, snmpstatus will try to fix errors returned by the agent and retry a request. With this option, the command will display the data that it can. snmpstatus will not try to fix errors and an error will cause the command to terminate.
A usage syntax error. A usage message is displayed. Also used for timeout errors.
An error occurred while executing the command. An error message is displayed.
See attributes(5) for descriptions of the following attributes: