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Rate-limit or classify SNMP management-plane traffic through appropriate CoPP/management controls would not correct the CoPP class and policing rate for authorized OSPF control traffic rather than opening all packets.

Tune control-plane policing rates and traffic classes for real platform traffic levels and route-scale demands would not correct the CoPP class and policing rate for authorized OSPF control traffic rather than opening all packets.

The needed correction is to correct the CoPP class and policing rate for authorized OSPF control traffic rather than opening all packets.

This test measures a different behavior: Check CoPP class counters and routing adjacency stability during controlled punt-rate tests. It does not establish the target outcome. For the documented fault, the direct acceptance test is: inspect CoPP drop counters for OSPF and verify neighbor adjacency recovers.

This test measures a different behavior: Compare CPU load, CoPP counters and authorized monitoring success before and after tuning. It does not establish the target outcome. For the documented fault, the direct acceptance test is: inspect CoPP drop counters for OSPF and verify neighbor adjacency recovers.

This test measures a different behavior: Stress-test legitimate BGP update bursts and verify adjacency stability plus CoPP drop counters. It does not establish the target outcome. For the documented fault, the direct acceptance test is: inspect CoPP drop counters for OSPF and verify neighbor adjacency recovers.

That diagnosis is supported by a different symptom: A small volume of repeated SNMP requests causes control-plane slowdown without link saturation. Here the recorded observation is: healthy physical links show OSPF neighbors flapping only after CoPP activation. The applicable cause is: legitimate routing-control packets are mistakenly classified into a low-rate drop class.

That diagnosis is supported by a different symptom: The CPU becomes saturated because excessive punted packets reach the routing process. Here the recorded observation is: healthy physical links show OSPF neighbors flapping only after CoPP activation. The applicable cause is: legitimate routing-control packets are mistakenly classified into a low-rate drop class.

That diagnosis is supported by a different symptom: Valid BGP keepalives and updates exceed the copied policy rate and get dropped. Here the recorded observation is: healthy physical links show OSPF neighbors flapping only after CoPP activation. The applicable cause is: legitimate routing-control packets are mistakenly classified into a low-rate drop class.

That control reduces a separate risk: A platform-inappropriate policing threshold throttles essential control-plane traffic. For the described design, the recurring risk arises from: legitimate routing-control packets are mistakenly classified into a low-rate drop class. The specific required safeguard is: validate OSPF/BGP management classes and planned thresholds before activating CoPP.

That control reduces a separate risk: The control plane lacks an effective policing policy for the abusive punt class. For the described design, the recurring risk arises from: legitimate routing-control packets are mistakenly classified into a low-rate drop class. The specific required safeguard is: validate OSPF/BGP management classes and planned thresholds before activating CoPP.

That control reduces a separate risk: Management traffic is processed in the CPU and lacks suitable control-plane rate controls. For the described design, the recurring risk arises from: legitimate routing-control packets are mistakenly classified into a low-rate drop class. The specific required safeguard is: validate OSPF/BGP management classes and planned thresholds before activating CoPP.

The needed correction is to rate-limit or classify SNMP management-plane traffic through appropriate CoPP/management controls.

Tune control-plane policing rates and traffic classes for real platform traffic levels and route-scale demands would not address the need for rate-limit or classify SNMP management-plane traffic through appropriate CoPP/management controls.

Applying supported CoPP or control-plane protection to the punt path in addition to relevant interface ACLs would not address the need for rate-limit or classify SNMP management-plane traffic through appropriate CoPP/management controls.

This test measures a different behavior: Generate controlled packets to router-local addresses and inspect control-plane class counters. It does not establish the target outcome. For the documented fault, the direct acceptance test is: compare CPU load, CoPP counters and authorized monitoring success before and after tuning.

This test measures a different behavior: Check CoPP class counters and routing adjacency stability during controlled punt-rate tests. It does not establish the target outcome. For the documented fault, the direct acceptance test is: compare CPU load, CoPP counters and authorized monitoring success before and after tuning.

This test measures a different behavior: Stress-test legitimate BGP update bursts and verify adjacency stability plus CoPP drop counters. It does not establish the target outcome. For the documented fault, the direct acceptance test is: compare CPU load, CoPP counters and authorized monitoring success before and after tuning.

That diagnosis is supported by a different symptom: The CPU becomes saturated because excessive punted packets reach the routing process. Here the recorded observation is: a small volume of repeated SNMP requests causes control-plane slowdown without link saturation. The applicable cause is: management traffic is processed in the CPU and lacks suitable control-plane rate controls.

That diagnosis is supported by a different symptom: Traffic destined to the router CPU remains unpoliced although a transit-forwarding ACL exists. Here the recorded observation is: a small volume of repeated SNMP requests causes control-plane slowdown without link saturation. The applicable cause is: management traffic is processed in the CPU and lacks suitable control-plane rate controls.

That diagnosis is supported by a different symptom: Valid BGP keepalives and updates exceed the copied policy rate and get dropped. Here the recorded observation is: a small volume of repeated SNMP requests causes control-plane slowdown without link saturation. The applicable cause is: management traffic is processed in the CPU and lacks suitable control-plane rate controls.

General control-plane protection helps against punt overload, but this choice does not set the SNMP-specific management-traffic rate requested.

That control reduces a separate risk: A platform-inappropriate policing threshold throttles essential control-plane traffic. For the described design, the recurring risk arises from: management traffic is processed in the CPU and lacks suitable control-plane rate controls. The specific required safeguard is: coordinate polling frequency and CoPP rates rather than masking telemetry failure.

A CoPP rate class for nonessential punt traffic can help, but the scenario requires identifying the SNMP polling class and coordinating its safe rate.

The needed correction is to apply supported CoPP or control-plane protection to the punt path in addition to relevant interface ACLs.

Attaching the ACL at an actual routed interface carrying the traffic in the intended direction would not apply supported CoPP or control-plane protection to the punt path in addition to relevant interface ACLs.

Rate-limit or classify SNMP management-plane traffic through appropriate CoPP/management controls would not apply supported CoPP or control-plane protection to the punt path in addition to relevant interface ACLs.

This test measures a different behavior: Check CoPP class counters and routing adjacency stability during controlled punt-rate tests. It does not establish the target outcome. For the documented fault, the direct acceptance test is: generate controlled packets to router-local addresses and inspect control-plane class counters.

This test measures a different behavior: Run interface counters and a controlled deny test on the true forwarding path. It does not establish the target outcome. For the documented fault, the direct acceptance test is: generate controlled packets to router-local addresses and inspect control-plane class counters.

This test measures a different behavior: Compare CPU load, CoPP counters and authorized monitoring success before and after tuning. It does not establish the target outcome. For the documented fault, the direct acceptance test is: generate controlled packets to router-local addresses and inspect control-plane class counters.

That diagnosis is supported by a different symptom: A small volume of repeated SNMP requests causes control-plane slowdown without link saturation. Here the recorded observation is: traffic destined to the router CPU remains unpoliced although a transit-forwarding ACL exists. The applicable cause is: data-plane interface ACL enforcement was mistaken for explicit control-plane policing.

That diagnosis is supported by a different symptom: The CPU becomes saturated because excessive punted packets reach the routing process. Here the recorded observation is: traffic destined to the router CPU remains unpoliced although a transit-forwarding ACL exists. The applicable cause is: data-plane interface ACL enforcement was mistaken for explicit control-plane policing.

That diagnosis is supported by a different symptom: Disallowed traffic continues through the active VLAN interface without any ACL hits. Here the recorded observation is: traffic destined to the router CPU remains unpoliced although a transit-forwarding ACL exists. The applicable cause is: data-plane interface ACL enforcement was mistaken for explicit control-plane policing.