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auto-derive

 

Syntax

Hierarchy Level

Release Information

Statement introduced on MX Series routers, QFX Series switches, and Junos on White Box in Junos OS Release 18.4R1.

Description

Configure aggregated Ethernet interfaces and aggregated Ethernet logical interfaces to automatically derive Ethernet segment identifiers (ESIs) from the Link Aggregation Control Protocol (LACP) configuration. We support this feature in the following environments:

  • On Juniper Networks devices that support the automatic ESI feature and are multihomed in active-active mode in an EVPN-VXLAN overlay network.

  • On Juniper Networks devices that support the automatic ESI feature and are multihomed in active-standby or active-active mode in an EVPN-MPLS overlay network.

In general, you can implement the automatic ESI feature on aggregated Ethernet and aggregated Ethernet logical interfaces as follows:

  • You can configure automatic ESI on an aggregated Ethernet interface on which LACP is enabled. In this case, an ESI is generated, and that particular ESI is assigned to all logical interfaces on the aggregated Ethernet interface.

  • You can configure automatic ESI on one or more logical interfaces on an aggregated Ethernet interface on which LACP is enabled. In this case, an ESI is generated for each logical interface on which the feature is enabled and assigned to that particular logical interface.

  • On an aggregated Ethernet interface on which LACP is enabled, you can manually configure an ESI using the esi identifier configuration statement at the [edit interfaces aeX] hierarchy level. On one or more logical interfaces on that particular aggregated Ethernet interface, you can configure automatic ESI. In this case, an ESI is generated for each logical interface on which the feature is enabled and assigned to that particular logical interface.

For more guidelines on configuring automatic ESI and information about how the ESI is derived, see Understanding Automatically Generated ESIs in EVPN Networks.

Options

lacpSpecify that the ESI is automatically derived from the LACP configuration on the aggregated Ethernet interface.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.