MX Series Virtual Chassis support for logical systems

MX Series Virtual Chassis configurations support the use of logical systems. A logical system independently performs a subset of the tasks performed by the main router and has a unique routing table, and unique interfaces, policies, and routing instances. In earlier Junos OS releases, MX Series Virtual Chassis configurations do not support the logical systems feature. To configure routing policies or enable a protocol such as OSPF when you are using logical systems with an MX Series Virtual Chassis, you must include routing policy configuration statements at the [edit logical-systems logical-system-name policy-options] hierarchy level, and protocol configuration statements at the [edit logical-systems logical-system-name protocols] hierarchy level.