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[MX] SNMP not polling to fxp0 configured under logical-systems



Article ID: KB29151 KB Last Updated: 06 Jun 2014Version: 1.0

When fxp0 is configured under a logical-system, SNMP polling to the interface will fail. This article explains the issue and suggests two alternative configurations.


How do you configure for SNMP polling to fxp0 while when it is configured in a logical-system?


Example: SNMP polling will not work to fxp0 when configured like this:

logical-systems {
     management {
           interfaces {
                  fxp0 {
                       unit 0;
           routing-options {
                  static {
                        route next-hop x.x.x.x;


If the goal is to have SNMP poll to fxp0, then fxp0 cannot be configured under logical-systems or within a routing instance.

For SNMP polling to fxp0 to work, there are two alternatives:

  1. Configure fxp0 outside of the logical-systems/routing instance
  2. Configure a different interface under the local-systems/routing instance and poll to that interface instead

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