Verifying the SNMP Configuration

To verify the SNMP configuration, perform the following verification task.

Purpose

Verify that SNMP is running and that requests and traps are being properly transmitted.

Action

From the CLI, enter the show snmp statistics command.

Sample Output

SNMP statistics:
  Input:
    Packets: 246213, Bad versions: 12, Bad community names: 12,
    Bad community uses: 0, ASN parse errors: 96,
    Too bigs: 0, No such names: 0, Bad values: 0,
    Read onlys: 0, General errors: 0,
    Total request varbinds: 227084, Total set varbinds: 67,
    Get requests: 44942, Get nexts: 190371, Set requests: 10712,
    Get responses: 0, Traps: 0,
    Silent drops: 0, Proxy drops: 0, Commit pending drops: 0,
    Throttle drops: 0,
  V3 Input:
    Unknown security models: 0, Invalid messages: 0
    Unknown pdu handlers: 0, Unavailable contexts: 0
    Unknown contexts: 0, Unsupported security levels: 1
    Not in time windows: 0, Unknown user names: 0
    Unknown engine ids: 44, Wrong digests: 23, Decryption errors: 0
  Output:
    Packets: 246093, Too bigs: 0, No such names: 31561,
    Bad values: 0, General errors: 2,
    Get requests: 0, Get nexts: 0, Set requests: 0,
    Get responses: 246025, Traps: 0

What it Means

The output shows a list of the SNMP statistics, including details about the number and types of packets transmitted. Verify the following information:

• The number of requests and traps is increasing as expected with the SNMP client configuration.
• Under Bad community names, the number of bad (invalid) communities is not increasing. A sharp increase in the number of invalid community names generally means that one or more community strings are configured incorrectly.

For more information about show snmp statistics, see the JUNOS Protocols, Class of Service, and System Basics Command Reference.