Layer 2 Configuration – MAC Limiting

There are features and functions used in Arista NetVisor UNUM and Insight Analytics that are common throughout the user interface (UI). Please refer to the Common Functions section for more information on the use of these functions and features.

Manage MAC Limiting

Selecting Manager → Layer 2 → Manage MAC Limiting displays the Manage MAC Limiting dashboard with a list of any existing MAC Limiting entries. 

Select the applicable Fabric from the left-hand navigation bar and the dashboard updates showing all MAC Limiting entries from all switches within the Fabric

Note: If no entries exist a "No Data Exists" message is displayed. You must first configure an entry on a switch. Prerequisite settings and configuration may be required.

This feature table displays data based on the fabric's default Collector Switch. If no data displays in the dashboard, either select a switch from the Left-hand Navigation (LHN) pane or perform a Search by selecting an FRG (Fabric Resource Group) and a specific Attribute from the drop-down lists, as required. 

The dashboard displays a list of existing MAC Limiting entries by Fabric. Additional parameters include: Switch, Port, Num Macs, Mac Limit Action, and Mac Limit.

Manager MAC Limiting - Manage MAC Limiting Fabric Dashboard

Select the applicable switch from the fabric and the dashboard updates automatically with Mac Limiting settings.

The dashboard displays a list of existing MAC entries by Switch. Additional parameters include: Port, Num Macs, Mac Limit Action, and Mac Limit.

Manager MAC Limiting - Manage MAC Limiting Switch Dashboard

Edit Ports

Limit the number of MAC addresses per port as well as configure the action needed when exceeding the limit on a port.

You update a Mac Limit entry using the Edit function by selecting the Cog icon.

To modify a Mac Limit make changes to the parameters which include: 

Mac Limit Action – Action to take when mac-limit is exceeded on a port - Log or Disable the port.

Mac Limit – Maximum mac addresses that use the port.

Manager Mac Limiting Update Screen

Click Save to continue or Cancel to return to the previous screen without saving any changes.