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[Junos OS] Commit synchronize warning

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Article ID: KB24906 KB Last Updated: 14 Feb 2017Version: 3.0
Summary:

This article explains why a commit synchronize command generates warning messages when executed on a router with dual routing engines that have different versions of the Junos OS.

Symptoms:

When a commit synchronize command is executed on a backup RE that has a lower version of the Junos OS than the primary RE, the primary RE generates warning messages.

The scenario below outlines the problem.

  • RE 1 is running Junos 9.3S9.

  • RE 2 is running Junos 10.0S22.

  • When a commit synchronize command is executed on RE 2, the message below is generated:

juniper@lab# commit synchronize
re1:
configuration check succeeds
re0:
warning: unsupported command: pull-configuration
warning: unsupported command: pull-configuration
warning: pull configuration failed, fallback to push configuration method

commit complete
re1:
commit complete

  • This situation is not encountered when a commit synchronize command is executed on RE 1.
Cause:

Solution:

This is the expected behavior. This error occurs when the routing engines are running different versions of the Junos OS.

Note: This issue was revealed only when one RE was running Junos 9.x or older, and the other RE was running Junos 10.x.

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