A service provider is deploying EVPN-VXLAN for a data center interconnect (DCI). The design requires active-active multihoming for a critical server connected to two PE routers, PE1 and PE2. The server is connected via a LACP bundle. To ensure proper load balancing and loop prevention, a Designated Forwarder (DF) election is required for the Ethernet Segment. Which EVPN route type is fundamental for the DF election process for a given Ethernet Segment Identifier (ESI)?
A financial services company is using PIM-SM for internal video distribution. To enhance redundancy, they have deployed two RPs using Anycast RP. For the Anycast RP solution to function correctly, the two physical RP devices must be able to synchronize their active source information. Which protocol is essential for this source synchronization between the Anycast RP peers?
A consultant is reviewing an IS-IS configuration where Level 1 routers are not installing a default route from the Level 1/Level 2 ABR, causing a lack of reachability to external prefixes. The ABR has full reachability to the Level 2 backbone. Which condition must be met on the Level 1/Level 2 router for it to automatically advertise a default route into the Level 1 area?
A service provider offers Layer 3 VPN services to a customer with two sites, Site A and Site B. The customer is using OSPF as the PE-CE routing protocol. To prevent routing loops and suboptimal routing, the provider must ensure that routes learned from Site A are not advertised back to Site A via the MPLS core. Which BGP extended community should be configured on the PE router connected to Site A to achieve this?
During a BGP route selection analysis, you observe two paths to the destination 198.51.100.0/24. Path 1 is learned via eBGP and Path 2 is learned via iBGP. All higher-priority attributes such as LOCAL_PREF, AS_PATH length, and ORIGIN code are identical for both paths. What is the default behavior of the Junos BGP route selection process in this specific situation?
A service provider is configuring Class of Service (CoS) to prioritize real-time voice traffic. The requirement is to ensure that voice packets, classified into the `voice-traffic` forwarding class, are always serviced before any other traffic, but without starving other queues entirely. The configuration should also provide a guaranteed bandwidth for this class. Which combination of scheduler settings on the egress interface best fulfills these requirements?
You are configuring an OSPF backbone area (area 0.0.0.0) that connects to a branch office via a Not-So-Stubby Area (NSSA). The branch office has an external connection to a partner network and needs to inject these external routes into the OSPF domain. How are these external routes represented within the NSSA and how do they propagate into the backbone area?
True or False: In a Junos LDP-signaled VPLS implementation, a full mesh of targeted-LDP sessions is required between all PE routers participating in the same VPLS instance.
A network administrator is troubleshooting an LDP Layer 2 circuit between two PE routers, PE1 and PE2. The circuit is down. The administrator confirms that there is IP reachability between the loopback interfaces of PE1 and PE2, and that LDP is enabled on the core-facing interfaces. Which of the following are critical configuration elements that must be verified to establish the LDP session for the Layer 2 circuit? (Select TWO).
A service provider is establishing an inter-provider L3VPN connection with another AS using the Inter-AS Option B method. What are the key characteristics of this approach? (Select THREE).