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Configure an IP host default gateway and assume that automatically elects a PIM RP. This would not be an appropriate PIM sparse-mode RP shared tree decision. Absent or inconsistent RP mapping prevents initial ASM group discovery.

Use IGMPv3-capable receivers and source-specific membership where applicable. This belongs to IGMPv3 source include mode, not the specified PIM sparse-mode RP shared tree operation. Sparse-mode ASM commonly uses an RP to establish initial shared-tree multicast state.

Align multicast RPF expectations with unicast or configured multicast routing topology. This belongs to Multicast RPF shortest reverse path check, not the specified PIM sparse-mode RP shared tree operation. Sparse-mode ASM commonly uses an RP to establish initial shared-tree multicast state.

Inspect route to VTEP loopback and VXLAN encapsulation transport. That check applies chiefly to VXLAN VTEP loopback underlay route, not the current EVPN multihoming split horizon loop avoidance issue. EVPN split-horizon prevents replication back toward the same multihomed Ethernet segment.

Disable all ESI-aware forwarding checks so every flooded packet is replicated to all ports. That bypass leaves the EVPN multihoming split horizon loop avoidance issue unresolved. Lack of split-horizon handling can cause duplicate or looping flooded frames.

Inspect EVPN Type2 NLRI and destination MAC forwarding entries. That check applies chiefly to EVPN Type2 MAC IP advertisement, not the current EVPN multihoming split horizon loop avoidance issue. EVPN split-horizon prevents replication back toward the same multihomed Ethernet segment.

Set two interfaces to identical descriptions and assume the forwarding table hashes across both. This is a risky or ineffective shortcut for BGP multipath equal-cost path installation. Merely seeing multiple BGP routes does not prove load balancing occurs.

Configure appropriate inet6-unicast family and compatible IPv6 next-hop reachability. This addresses BGP NLRI IPv6 unicast inet6 family rather than the required BGP multipath equal-cost path installation decision. BGP multipath requires compatible path properties and FIB programming beyond two received advertisements.

Validate supported forwarding-table hashing and load distribution across many distinct flows. This addresses BGP ECMP per-flow hashing rather than the required BGP multipath equal-cost path installation decision. BGP multipath requires compatible path properties and FIB programming beyond two received advertisements.

Multiple eligible next hops are installed and traffic follows approved ECMP hashing. This validates BGP multipath equal-cost path installation but does not directly demonstrate the required BGP hidden and rejected path diagnosis result. BGP neighbor state and route installation are separate control-plane gates.

Other areas see the approved aggregate while required specifics remain reachable. This validates OSPF interarea route summarization but does not directly demonstrate the required BGP hidden and rejected path diagnosis result. BGP neighbor state and route installation are separate control-plane gates.

Tagged prefixes follow documented export or preference behavior at the target neighbor. This validates BGP communities tagging routing intent but does not directly demonstrate the required BGP hidden and rejected path diagnosis result. BGP neighbor state and route installation are separate control-plane gates.

PIM-SM can transition from shared RP tree to a source shortest-path tree. That principle is related to ASM shared tree versus SPT switchover, not the main Anycast RP with shared address choice. Identical RP addresses without source-state coordination can break ASM reachability.

Graceful restart preserves temporary forwarding state but is not unlimited reachability assurance. That principle is related to BGP graceful restart session continuity, not the main Anycast RP with shared address choice. Identical RP addresses without source-state coordination can break ASM reachability.

Multicast forwarding depends on both RPF incoming checks and valid outgoing interface state. That principle is related to Multicast routing table incoming outgoing lists, not the main Anycast RP with shared address choice. Identical RP addresses without source-state coordination can break ASM reachability.

Under controlled load intended voice QoS remains protected while other classes retain service. This validates CoS end-to-end verification of drop behavior but does not directly demonstrate the required EVPN designated forwarder DF for BUM result. EVPN DF controls multihomed access delivery of broadcast unknown-unicast and multicast traffic.

BUM frames are not looped back to the originating Ethernet segment. This validates EVPN multihoming split horizon loop avoidance but does not directly demonstrate the required EVPN designated forwarder DF for BUM result. EVPN DF controls multihomed access delivery of broadcast unknown-unicast and multicast traffic.

The selected active leaf forwards while standby becomes active after controlled failure. This validates EVPN single-active multihoming access mode but does not directly demonstrate the required EVPN designated forwarder DF for BUM result. EVPN DF controls multihomed access delivery of broadcast unknown-unicast and multicast traffic.

Trace VXLAN BUM packet source ESI and egress eligibility on both peers. That check applies chiefly to EVPN multihoming split horizon loop avoidance, not the current EVPN single-active multihoming access mode issue. Single-active multihoming deliberately avoids parallel forwarding on a shared segment.

Inspect route to VTEP loopback and VXLAN encapsulation transport. That check applies chiefly to VXLAN VTEP loopback underlay route, not the current EVPN single-active multihoming access mode issue. Single-active multihoming deliberately avoids parallel forwarding on a shared segment.

Declare two parallel ordinary access trunks single-active without EVPN multihoming configuration. That bypass leaves the EVPN single-active multihoming access mode issue unresolved. Enabling unintended all-active behavior can violate a single-active attachment design.

Multicast involves host membership router tree state and actual forwarding traffic. That principle is related to Multicast troubleshooting separate control and data planes, not the main Multicast policy group scoping choice. An unrestricted policy can carry sensitive multicast into unintended domains.

IGMP queriers maintain host membership state on a local multicast segment. That principle is related to IGMP querier on subscriber VLAN, not the main Multicast policy group scoping choice. An unrestricted policy can carry sensitive multicast into unintended domains.

PoE detection classification and allocation are distinct from Ethernet packet switching. That principle is related to PoE class discovery and allocation, not the main Multicast policy group scoping choice. An unrestricted policy can carry sensitive multicast into unintended domains.

Apply the intended scheduler map to the actual output interface. This belongs to Scheduler maps attached to egress interface, not the specified RED WRED drop profile thresholds operation. WRED can drop lower-priority traffic earlier as average queue size rises.

Define suitable forwarding classes and their supported queue mappings. This belongs to Junos forwarding class to queue mapping, not the specified RED WRED drop profile thresholds operation. WRED can drop lower-priority traffic earlier as average queue size rises.

Enable a firewall permit rule and assume it programs WRED probability curves. This would not be an appropriate RED WRED drop profile thresholds decision. Poorly chosen thresholds can drop valuable traffic or fail to control congestion.

Change all interfaces to nonbroadcast without checking neighbor discovery requirements. This is a risky or ineffective shortcut for OSPF point-to-point network type. Mixed OSPF interface network types can produce confusing neighbor behavior.

Verify IPv6 interface participation and OSPFv3 prefix advertisement settings. This addresses OSPFv3 IPv6 prefix advertisement rather than the required OSPF point-to-point network type decision. Point-to-point OSPF interfaces do not use broadcast-network DR election.

Use a consistent OSPF reference-bandwidth policy across the intended routing domain. This addresses OSPF reference bandwidth and high-speed links rather than the required OSPF point-to-point network type decision. Point-to-point OSPF interfaces do not use broadcast-network DR election.

Hello packets agree on area identification and neighbors reach Full. This validates OSPFv2 area identifier consistency but does not directly demonstrate the required OSPF interface MTU mismatch result. OSPF database exchange can stall when peers disagree on interface MTU.

Remote IPv6 routers receive only the intended OSPFv3 external destinations. This validates OSPFv3 routing policy for external IPv6 but does not directly demonstrate the required OSPF interface MTU mismatch result. OSPF database exchange can stall when peers disagree on interface MTU.

Packet counters show EF-marked traffic assigned to approved forwarding class and queue. This validates Junos ingress BA DSCP classifier but does not directly demonstrate the required OSPF interface MTU mismatch result. OSPF database exchange can stall when peers disagree on interface MTU.