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VPNs and Logical Systems

You can partition a single physical router into multiple logical systems that perform independent routing tasks. Because logical systems perform a subset of the tasks once handled by the physical router, logical systems offer an effective way to maximize the use of a single routing platform.

Logical systems perform a subset of the actions of a physical router and have their own unique routing tables, interfaces, policies, and routing instances. A set of logical systems within a single router can handle the functions previously performed by several small routers.

Logical systems support Layer 2 VPNs, Layer 3 VPNs, VPLS, and Layer 2 circuits. For more information about logical systems, see the Logical Systems User Guide for Routers and Switches.

Ethernet VPN (EVPN) support has also been extended to logical systems running on MX devices. The same EVPN options and performance are available, and can be configured under the [edit logical-systems logical-system-name routing-instances routing-instance-name protocols evpn] hierarchy.

Change History Table

Feature support is determined by the platform and release you are using. Use Feature Explorer to determine if a feature is supported on your platform.

Release
Description
17.4
Starting in Junos OS release 17.4R1, Ethernet VPN (EVPN) support has also been extended to logical systems running on MX devices. The same EVPN options and performance are available, and can be configured under the [edit logical-systems logical-system-name routing-instances routing-instance-name protocols evpn] hierarchy.