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Configuring the VPLS MAC Address Timeout

 

You can fine-tune your VPLS domain by clearing MAC address entries from the VPLS table or modifying the default timeout interval for the VPLS table.

Note

On MX Series routers running Junos OS Release 8.4 and later, you can set the expiration time of entries in the MAC table only for the entire router, not for specific VPLS routing instances. To set the expiration for the entire router, include the mac-table-aging-time seconds statement at the [edit protocols l2-learning] hierarchy level. Do not include the mac-table-aging-time statement at the [edit routing-instances routing-instance-name protocols vpls] hierarchy level on MX Series routers running Junos OS Release 8.4 and later.

To clear all MAC address entries from the VPLS table, issue the clear vpls mac-address command. Add the logical-system logical-system-name option to clear entries within a logical system and include the instance instance-name option to clear entries in a specific VPLS instance. Use the mac-address option to remove individual MAC addresses.

To configure the VPLS table timeout interval, include the mac-table-aging-time statement at the [edit routing-instances instance-name protocols vpls] hierarchy level. The default interval is 300 seconds, with a minimum of 10 seconds and a maximum of 1 million seconds. As a general rule, you can configure longer values for small, stable VPLS networks and shorter values for large, dynamic VPLS networks. If no traffic is received for a specific MAC address, M Series and T Series routers wait one additional interval before automatically clearing MAC address entries from the VPLS table. MX Series routers do not wait for this interval.