SNMP Configuration

With the SNMP Configuration page, you can:

Disabling or Enabling SNMP

Note: Disabling the SNMP agent prevents SNMP applications from accessing the cluster. As a result, you cannot generate reports, which requires SNMP to be enabled with the community string set to "public."

To disable SNMP (enabled by default):

  1. Deselect the Enable SNMP check box.
  2. Click Apply.
    The SNMP options, community strings, and trap manager information on the SNMP page is no longer displayed until you reenable SNMP.

To reenable SNMP, select Enable SNMP and click Apply.

Entering Basic System Information

For each field, you can enter a maximum of 255 characters.

  1. In the Name field, enter the name of the switch.
  2. In the Location field, enter the physical location of the switch.
  3. In the Contact field, enter the name or organization responsible for the switch.
  4. Click Apply.

Displaying SNMP Statistics

To display SNMP statistics, click Statistics.

Adding and Removing Community Strings

Community strings serve as passwords for SNMP messages. You can enter community strings with read only (RO) or read/write (RW) capabilities. SNMP requests with read-only capability allow for the display of MIB-object information. SNMP requests with read/write capability allow for the display and setting of MIB object information.

To add a new community string:

  1. In the New Community String field, enter a character string (of any length) into the String field.
    If you are configuring a community string for a cluster member, the string should be unique in the cluster.
  2. Click RO or RW.
  3. Click <<Add<<.

To remove an existing community string:

  1. In the Current Strings list, select the community string to be deleted.
  2. Click Remove.

Adding and Removing Trap Managers

A trap manager is a management station that receives traps, which are the system alerts generated by the switch. By default, no trap manager is defined, and no traps are issued.

To add a new trap manager:

  1. In the New Manager IP Address field, enter the IP address of the new trap manager.
  2. In the New Manager Community field, enter the community string (of any length) for the new trap manager.
  3. Select one or more of the following check boxes to limit the traps a trap manager receives:
    Send config traps to generate a trap on all changes to the switch configuration.
    Send SNMP traps to generate the supported SNMP traps.
    Send TTY traps to generate a trap when the switch starts an ASCII (management console) session.
    Send C2900/C3500 traps to generate Catalyst 2900 XL or Catalyst 3500 XL specific traps, such as the trap on address violation or broadcast storm level exceeded. These traps are included in the private enterprise MIB.
    Send vtp traps to generate a trap for each VLAN Trunk Protocol (VTP) change (Enterprise Edition Software only).
    Send vlan membership traps to generate a trap for each VLAN Membership Policy Server (VMPS) change (Enterprise Edition Software only).
  4. Click <<Add<<.

To remove an existing trap manager:

  1. In the Current Managers list, select the trap manager to be deleted.
  2. Click Remove.