OSPF, IS-IS, BGP and Ethernet switching configuration guides for Juniper MX, EX and QFX platforms.
A Junos ISIS adjacency stuck in Initializing means one router hears the other, but its own hellos are not being accepted in return. This guide gives the ordered checks, ranks the root causes from missing family iso to hello padding and ISO MTU, and shows healthy and broken output.
'How do I leak routes between two VRFs, or from a VRF to the global table?' is a standing question on the Juniper community. Rib-groups and instance-import solve different versions of the problem — here is when to use which, with working configs.
Step-by-step EVPN-VXLAN leaf configuration on EX3400 and EX4300 with QFX as spine, including IRB anycast, MAC learning and verification commands.
A new Juniper admin posts 'my routes are not advertised to the neighbor' every week. Junos applies next-hop self differently than Cisco, and export policies have quirks of their own — here is the complete verification path.
Master Junos MX Class-of-Service: classifiers, forwarding classes, schedulers, rewrite rules and hierarchical CoS for voice, video and bulk-data traffic shaping.
End-to-end OSPFv2 configuration on Juniper MX routers: interfaces, areas, authentication, route redistribution and verification commands.