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Check: Check EVPN address-family advertisements, route types, Ethernet segment and EVI context, route targets and remote forwarding database. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

For this select two assessment, the shortcut changes or bypasses the necessary routing, service or operational boundary rather than correcting it. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

This option addresses a different service provider engineering topic (L3VPN extranet shared service and internet breakout) rather than the documented IGMPv3 MLD and multicast membership scope decision.

This option addresses a different service provider engineering topic (PIM sparse-mode SSM and rendezvous-point behavior) rather than the documented IGMPv3 MLD and multicast membership scope decision.

IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support. Applied case: A receiver needs one SSM source but its access switch ignores IGMPv3 source filters and forwards multiple senders from the same group.

Match the Ethernet service type to required point-to-point, multipoint or rooted traffic relationships and enforce the appropriate endpoint split rules. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

Carrier supporting carrier lets a provider transport another carrier's VPN or MPLS reachability without needing full visibility into every downstream end-customer route. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

EVC tag operations such as push pop and translation are contextual to a service instance and may require symmetric rewrite at both attachment points. A receiver needs one SSM source but its access switch ignores IGMPv3 source filters and forwards multiple senders from the same group.

E-Line is point-to-point, E-LAN is multipoint and E-Tree distinguishes root and leaf connectivity, requiring deliberate forwarding restrictions. A receiver needs one SSM source but its access switch ignores IGMPv3 source filters and forwards multiple senders from the same group.

Check EVPN address-family advertisements, route types, Ethernet segment and EVI context, route targets and remote forwarding database. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

Check labeled route handoff, VRF or transport separation, next-hop reachability and a representative downstream customer LSP. A receiver needs one SSM source but its access switch ignores IGMPv3 source filters and forwards multiple senders from the same group.

Capture tagged or untagged frames at both UNIs, check service instance counters and confirm expected VLAN identity after a full round trip. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

The dual-homed customer retains connectivity with correct single-copy flooding and no persistent Layer-2 forwarding loops. A receiver needs one SSM source but its access switch ignores IGMPv3 source filters and forwards multiple senders from the same group.

This option addresses a different service provider engineering topic (MPLS L3VPN RD RT and VRF import export) rather than the documented IGMPv3 MLD and multicast membership scope decision.

This option addresses a different service provider engineering topic (Multicast VPN mVPN inclusive and selective trees) rather than the documented IGMPv3 MLD and multicast membership scope decision.

Change: Configure consistent service and customer VLAN tag handling with explicit encapsulation and correct cross-PE mapping. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

Change: Enable supported ring protection and Ethernet OAM mechanisms to enforce a loop-free normal state and verify service continuity after failure. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

Change: Advertise and import the proper EVPN MAC or IP reachability route type and associated route targets for the requested L2 or L3 service. IGMP manages IPv4 multicast listener memberships, MLD handles IPv6, and source-specific filtering depends on listener protocol and switch or router support.

Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load. For this best change assessment, the shortcut changes or bypasses the necessary routing, service or operational boundary rather than correcting it.

Configure a consistent Ethernet Segment Identifier and supported designated-forwarder or split-horizon behavior for the multihoming model. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Advertise and import the proper EVPN MAC or IP reachability route type and associated route targets for the requested L2 or L3 service. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

A route distinguisher makes overlapping VPN routes uniquely identifiable, whereas route targets control membership and distribution of VPN routing information. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

G.8032 Ethernet Ring Protection controls blocked and active ring links, while Ethernet OAM provides fault detection and service continuity evidence. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

EVPN multihoming coordinates PE participation through Ethernet segment routes and forwarder election to prevent loops and maintain reachability. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Check labeled route handoff, VRF or transport separation, next-hop reachability and a representative downstream customer LSP. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Compare ESI advertisements, DF election, MAC mobility sequence and traffic behavior before and after one PE uplink failure. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Inspect (*,G) and (S,G) state, RP mapping, RPF interface and actual receiver joins under a test stream. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

The customer carrier preserves its own service topology while the backbone transports authorized labeled traffic without core route explosion. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

The dual-homed customer retains connectivity with correct single-copy flooding and no persistent Layer-2 forwarding loops. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Customer MACs or prefixes resolve to the appropriate remote PE without leaking between unrelated EVPN instances. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

For this select two assessment, the shortcut changes or bypasses the necessary routing, service or operational boundary rather than correcting it. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Check: Inspect (*,G) and (S,G) state, RP mapping, RPF interface and actual receiver joins under a test stream. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.

Change: Define separate VRFs with correct route distinguishers and coordinated route-target import and export policies and confirm PE-to-PE labeled reachability. Policing can drop or remark out-of-profile traffic, shaping buffers and paces egress, and weighted congestion avoidance can reduce tail-drop pressure under load.