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This concern applies to PIM-SSM source-specific join in a different scenario where operators need to let subscribers request an explicitly selected multicast source and group pair. For the deployed multicast RPF route failure approach, the relevant caution is instead that asymmetric routing requires accurate multicast RPF design.

This concern applies to G.8032 Ethernet ring protection in a different scenario where operators need to protect a Carrier Ethernet ring from forwarding loops during normal operation. For the deployed multicast RPF route failure approach, the relevant caution is instead that asymmetric routing requires accurate multicast RPF design.

This concern applies to 802.1ah provider backbone bridging in a different scenario where operators need to reduce provider core visibility into customer MAC addresses for a large Ethernet service. For the deployed multicast RPF route failure approach, the relevant caution is instead that asymmetric routing requires accurate multicast RPF design.

traffic policing excess handling instead addresses a different condition: enforce a hard contracted rate with an explicit action for out-of-profile traffic. It would instead require you to use a policer with appropriate committed rate and drop or remark behavior, not the stated goal to mark customer traffic into a contracted provider forwarding class before queuing.

L3VPN label blackhole diagnosis instead addresses a different condition: investigate a VPNv4 route that exists in BGP but does not carry packets end to end. It would instead require you to check transport label and VPN service label resolution from ingress to egress, not the stated goal to mark customer traffic into a contracted provider forwarding class before queuing.

Ethernet CFM continuity check instead addresses a different condition: detect loss of Ethernet service connectivity between provider maintenance endpoints. It would instead require you to configure supported Ethernet connectivity fault management maintenance associations, not the stated goal to mark customer traffic into a contracted provider forwarding class before queuing.

The proposed step is for traffic policing excess handling, whose purpose is to enforce a hard contracted rate with an explicit action for out-of-profile traffic. It would not perform the necessary DSCP class marking at ingress operation: classify trusted traffic and apply the agreed DSCP or MPLS Traffic Class mapping.

The proposed step is for L3VPN label blackhole diagnosis, whose purpose is to investigate a VPNv4 route that exists in BGP but does not carry packets end to end. It would not perform the necessary DSCP class marking at ingress operation: classify trusted traffic and apply the agreed DSCP or MPLS Traffic Class mapping.

The proposed step is for Ethernet CFM continuity check, whose purpose is to detect loss of Ethernet service connectivity between provider maintenance endpoints. It would not perform the necessary DSCP class marking at ingress operation: classify trusted traffic and apply the agreed DSCP or MPLS Traffic Class mapping.

The observation would verify traffic policing excess handling under the separate requirement to enforce a hard contracted rate with an explicit action for out-of-profile traffic. It does not demonstrate the needed DSCP class marking at ingress result: packets enter the correct queue with expected marking at the provider boundary.

The observation would verify L3VPN label blackhole diagnosis under the separate requirement to investigate a VPNv4 route that exists in BGP but does not carry packets end to end. It does not demonstrate the needed DSCP class marking at ingress result: packets enter the correct queue with expected marking at the provider boundary.

The observation would verify Ethernet CFM continuity check under the separate requirement to detect loss of Ethernet service connectivity between provider maintenance endpoints. It does not demonstrate the needed DSCP class marking at ingress result: packets enter the correct queue with expected marking at the provider boundary.

This defect belongs to traffic policing excess handling, where the affected outcome is to enforce a hard contracted rate with an explicit action for out-of-profile traffic. It is not the direct failure mode identified for the DSCP class marking at ingress design in this case: customer traffic is passed through without classification despite SLA differentiation.

This defect belongs to L3VPN label blackhole diagnosis, where the affected outcome is to investigate a VPNv4 route that exists in BGP but does not carry packets end to end. It is not the direct failure mode identified for the DSCP class marking at ingress design in this case: customer traffic is passed through without classification despite SLA differentiation.

This defect belongs to Ethernet CFM continuity check, where the affected outcome is to detect loss of Ethernet service connectivity between provider maintenance endpoints. It is not the direct failure mode identified for the DSCP class marking at ingress design in this case: customer traffic is passed through without classification despite SLA differentiation.

This concern applies to traffic policing excess handling in a different scenario where operators need to enforce a hard contracted rate with an explicit action for out-of-profile traffic. For the deployed DSCP class marking at ingress approach, the relevant caution is instead that marking policy must handle untrusted subscriber-supplied values.

This concern applies to L3VPN label blackhole diagnosis in a different scenario where operators need to investigate a VPNv4 route that exists in BGP but does not carry packets end to end. For the deployed DSCP class marking at ingress approach, the relevant caution is instead that marking policy must handle untrusted subscriber-supplied values.

This concern applies to Ethernet CFM continuity check in a different scenario where operators need to detect loss of Ethernet service connectivity between provider maintenance endpoints. For the deployed DSCP class marking at ingress approach, the relevant caution is instead that marking policy must handle untrusted subscriber-supplied values.

DSCP class marking at ingress instead addresses a different condition: mark customer traffic into a contracted provider forwarding class before queuing. It would instead require you to classify trusted traffic and apply the agreed DSCP or MPLS Traffic Class mapping, not the stated goal to enforce a hard contracted rate with an explicit action for out-of-profile traffic.

controlled Internet breakout instead addresses a different condition: provide Internet access for an L3VPN tenant without leaking private customer prefixes. It would instead require you to place an explicit default-route or shared-services handoff inside the authorized VPN routing design, not the stated goal to enforce a hard contracted rate with an explicit action for out-of-profile traffic.

EVPN multihomed all-active Ethernet segment instead addresses a different condition: let a CE use two provider edges without losing its active Ethernet path on one PE failure. It would instead require you to configure compatible EVPN Ethernet segment identifiers and all-active multihoming, not the stated goal to enforce a hard contracted rate with an explicit action for out-of-profile traffic.

The proposed step is for DSCP class marking at ingress, whose purpose is to mark customer traffic into a contracted provider forwarding class before queuing. It would not perform the necessary traffic policing excess handling operation: use a policer with appropriate committed rate and drop or remark behavior.

The proposed step is for controlled Internet breakout, whose purpose is to provide Internet access for an L3VPN tenant without leaking private customer prefixes. It would not perform the necessary traffic policing excess handling operation: use a policer with appropriate committed rate and drop or remark behavior.

The proposed step is for EVPN multihomed all-active Ethernet segment, whose purpose is to let a CE use two provider edges without losing its active Ethernet path on one PE failure. It would not perform the necessary traffic policing excess handling operation: use a policer with appropriate committed rate and drop or remark behavior.

The observation would verify DSCP class marking at ingress under the separate requirement to mark customer traffic into a contracted provider forwarding class before queuing. It does not demonstrate the needed traffic policing excess handling result: excess traffic is counted and treated per policy rather than queued indefinitely.

The observation would verify controlled Internet breakout under the separate requirement to provide Internet access for an L3VPN tenant without leaking private customer prefixes. It does not demonstrate the needed traffic policing excess handling result: excess traffic is counted and treated per policy rather than queued indefinitely.

The observation would verify EVPN multihomed all-active Ethernet segment under the separate requirement to let a CE use two provider edges without losing its active Ethernet path on one PE failure. It does not demonstrate the needed traffic policing excess handling result: excess traffic is counted and treated per policy rather than queued indefinitely.

This defect belongs to DSCP class marking at ingress, where the affected outcome is to mark customer traffic into a contracted provider forwarding class before queuing. It is not the direct failure mode identified for the traffic policing excess handling design in this case: shaping is used where immediate excess-drop enforcement was required.

This defect belongs to controlled Internet breakout, where the affected outcome is to provide Internet access for an L3VPN tenant without leaking private customer prefixes. It is not the direct failure mode identified for the traffic policing excess handling design in this case: shaping is used where immediate excess-drop enforcement was required.

This defect belongs to EVPN multihomed all-active Ethernet segment, where the affected outcome is to let a CE use two provider edges without losing its active Ethernet path on one PE failure. It is not the direct failure mode identified for the traffic policing excess handling design in this case: shaping is used where immediate excess-drop enforcement was required.

This concern applies to DSCP class marking at ingress in a different scenario where operators need to mark customer traffic into a contracted provider forwarding class before queuing. For the deployed traffic policing excess handling approach, the relevant caution is instead that burst sizing affects how many short traffic spikes are permitted.

This concern applies to controlled Internet breakout in a different scenario where operators need to provide Internet access for an L3VPN tenant without leaking private customer prefixes. For the deployed traffic policing excess handling approach, the relevant caution is instead that burst sizing affects how many short traffic spikes are permitted.

This concern applies to EVPN multihomed all-active Ethernet segment in a different scenario where operators need to let a CE use two provider edges without losing its active Ethernet path on one PE failure. For the deployed traffic policing excess handling approach, the relevant caution is instead that burst sizing affects how many short traffic spikes are permitted.