Exam 300-410 All QuestionsBrowse all questions from this exam
Question 147

Refer to the exhibit. BGP is flapping after the CoPP policy is applied.

What are the two solutions to fix the issue? (Choose two.)

    Correct Answer: A, C

    BGP is flapping after the CoPP policy is applied because the policy does not adequately handle BGP traffic. One solution is to configure a higher value for CIR under the Class COPP-CRITICAL-7600 to ensure more critical traffic, including BGP, is transmitted smoothly. Another solution is to configure BGP in the COPP-CRITICAL-7600 ACL to explicitly include BGP traffic, preventing it from being misclassified or dropped inadvertently.

Discussion
HuntkeyOptions: BC

C takes care when the BGP session is initiated from the peer router B takes care when the BGP session is initialized from the local router. In this case, the traffic coming in would have destination port of a random number. It would match the default class.

inteldarvidOptions: BC

B and C: Explanation/Reference: Explanation: The policy-map COPP-7600 only rate-limit HTTP & HTTPS traffic (based on the ACLconditions) so any BGP packets will be processed in the class “class-default”, which dropsexceeded BGP packets. Therefore we have two ways to solvethis problem: + Add BGP to the ACL with the statement “permit tcp any any eq bgp” + Configure higher value for CIR in default class as 2Mbps is too low for web traffic (http & https)

RemsyncOptions: BC

B and C are correct.

wts

Why change the default settings if bgp falls into COPP-CRITICAL-7600? For bgp and http(s) you need to make different policies. But I don't see such an option.

Hack4

The given answer is correct

examShark

The given answer is correct

SeMo0o0o0Options: BC

B & C are correct

pompedomOptions: AC

You have to increase cir of copp critical not the default one. remember bgp is part of COPP-CRITICAL-7600 now

JingleJangus

Not Necessary. COPP-CRITICAL-7600 is configured as; confirm - transmit exceed - transmit Meaning traffic is never dropped, regardless of how high, or low, the CIR is configured as. Question is asking for 2 different solutions, NOT 2 elements of the same solution. If the engineer does not want to add BGP to COPP-CRITICAL-7600, another solution is to increase the CIR of class-default, so as to reduce the chances that traffic is dropped, including BGP.

sajjad_gayyem

But the exceed action is transmit in A.

error_909

The given answer is correct