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Hierarchy Level


Enable an Ethernet VPN (EVPN) on the routing instance.


designated-forwarder-election-hold-time seconds

Time in seconds to wait before electing a designated forwarder (DF). Peer provider edge (PE) devices elect a designated forwarder (DF) when customer edge devices (CEs) are multihomed to more than one PE device. Without a designated forwarder, multihomed hosts would receive duplicate packets. The designated forwarder choice for an Ethernet segment identifier (ESI) is based on EVPN Type 4 route advertisements.

  • Range: 1 through 1800 seconds


Use least preference value for DF election. By default, the preference-based DF election is based on the highest preference value configured.


Enable non-compliant ES import route-target computation.


Enable devices to use the lower-order bits for the ESI label field. This non-compliant ESI 24-bit ESI label can be found in previous Junos OS versions.


Configure an Ethernet VPN E-TREE service.

leave-sync-route-oldstyle Enable device to interoperate with devices that do not support the maximum response time attributes on EVPN Type 8 routes.
mac-mobility no-sequence-numbers Disable MAC mobility. This feature is enabled by default. See Overview of MAC Mobility.

Disable the core isolation feature (enabled by default on supporting platforms), which is desirable in certain EVPN fabric use cases. See Understanding When to Disable EVPN-VXLAN Core Isolation for details.

pmsi-tunnel-endpoint pmsi-tunnel-endpoint

Configure the PMSI tunnel endpoint on the ingress router to use the loopback address (router ID) that is the MPLS network PMSI tunnel endpoint for EVPN Type 3 routes.

smet-etag-carry-vid Enable a device to interoperate with other devices in the EVPN network that use VNIs (VLAN ID) as the Ethernet Tag ID.

The remaining statements are explained separately.

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 13.2.

designated-forwarder-election-hold-time seconds statement introduced in Junos OS Release 14.1.

extended-vlan-list vlan-id | [vlan-id set] statement introduced in Junos OS Release 14.1.


QFX10000 switches don't support the extended-vlan-list statement.

designated-forwarder-preference-least and service-type statements introduced in Junos OS Release 17.3 for MX Series routers with MPC interfaces and MIC interfaces.

no-core-isolation statement added in Junos OS Releases 17.3R3, 17.4R2, 18.1R3, 18.2R2, and 18.3R1.

Support for logical systems on MX Series routers added in Junos OS Release 17.4R1.

p2mp-bud-support statement introduced in Junos OS Release 18.2R1.

assisted-replication statement introduced in Junos OS Release 18.4R2 and 19.4R1.

pmsi-tunnel-endpoint statement introduced in Junos OS Release 20.3R1.

oism statement hierarchy introduced in Junos OS Release 21.2R1.

irb-symmetric-routing statement introduced in Junos OS Release 21.4R1.