JN0-650: Enterprise Routing and Switching, Professional (JNCIP-ENT)

LLDP-MED extends LLDP with media-endpoint capabilities for VoIP devices, including endpoint location information. EX Series switches use LLDP-MED to support VoIP telephone discovery and to advertise civic-based geographic location information for emergency-location purposes.

An EVPN-VXLAN configuration on QFX uses encapsulation vxlan under the protocols evpn hierarchy. EVPN route exchange is enabled in BGP through the EVPN signaling address family, family evpn signaling. VPLS signaling does not provide EVPN control-plane signaling, and loopback reachability does not mandate BGP as its advertisement protocol.

The multipath statement in the ext-peers BGP group enables Junos to install multiple equal BGP paths rather than only one best path. Because both external peers belong to that group, eligible equal routes learned from each peer can be active simultaneously.

An OSPF interface priority of 0 makes the routing device ineligible to become the designated router. Because both devices have priority 0, neither can become DR or BDR; routers that are neither DR nor BDR on a broadcast segment maintain a 2-Way neighbor relationship rather than forming a full adjacency with one another. Juniper: Configuring OSPF Areas

An EVPN NLRI prefixed with 1: is a Type 1 Ethernet Auto-Discovery route. The nonzero Ethernet Segment Identifier indicates an Ethernet segment for a multihomed attachment; single-homed attachments use an all-zero ESI. Understanding EVPN Pure Type 5 Routes | Junos OS