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df-election-granularity

Syntax

Hierarchy Level

Description

Configure an aggregated Ethernet interface to be the designated forwarder (DF) in an EVPN single-active configuration. When the aggregated Ethernet interface is the DF, it is emulating the behavior of an MC-LAG configuration in active-standby mode without having to configure an ICCP or ICL interface. This behavior is different than in a standard EVPN configuration, where the logical interfaces configured on an aggregated Ethernet interface can have different designated forwarder election roles.

In an EVPN single-active configuration, the provider edge (PE) device that is the non-DF will send LACP out-of-sync packets to the customer edge device (CE). As a result, LACP goes down on the CE device, and the CE device does not use the links connected to the non-DF for sending traffic. If the connection between a CE device and a DF PE device fails, the PE device is re-elected as a DF. If the connection between a CE device and a non-DF PE device fails, the current DF PE device is not changed.

Options

per-esi lacp-oos-on-ndf

Configure an aggregated Ethernet interface to be the designated forwarder (DF). Doing this ensures that the DF role of the ESI represents the role of the aggregated Ethernet interface. Setting this option also ensures the proper non-DF behavior described above.

per-esi-vlan

Configure an aggregated Ethernet interface to have different DF election roles. This is the default behavior.

The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.

Required Privilege Level

interface

Release Information

Statement introduced in Junos OS Release 20.4R1.