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Configuring MAC Pinning on Trunk Interfaces for Logical Systems

A MAC move occurs when a MAC address frequently appears on a different physical interface than the one it was learned on. Frequent MAC moves indicate the presence of loops. To avoid loops across interfaces in logical systems, you can configure MAC pinning. A set of logical systems within a single router can handle the functions previously handled by several small routers.

This topic describes how to configure MAC pinning on trunk interfaces of a logical system.

To configure MAC pinning on trunk interfaces in logical systems:

  1. Configure the interface and specify the encapsulation.
  2. Create the logical system by specifying the name of the logical system, and specify the trunk interface and list of VLAN IDs associated with the interface.
  3. Configure the bridge domain by specifying the VLAN ID parameter.
  4. Configure MAC pinning on the trunk interface by including the [mac-pinning] statement at the [edit switch-options] hierarchy level.
  5. In configuration mode, verify the configuration.