200-601 · Question #38
Refer to the exhibit. CIP Implicit messages from I/O#1 are being marked IP DSCP 47 by the endpoint and this marking is trusted by L2SW4. L2SW4 is configured to map DSCP 47 to output queue 1…
The correct answer is C. Increase the buffer allocation for output queue 1 E. Change the egress queue map on L2SW4 to map this traffic to a less congested queue. See the full explanation below for the reasoning.
Question
Refer to the exhibit. CIP Implicit messages from I/O#1 are being marked IP DSCP 47 by the endpoint and this marking is trusted by L2SW4. L2SW4 is configured to map DSCP 47 to output queue 1 threshold 1. You have received feedback that some of these messages are not being received. Executing the show mls interface GigabitEthernet statistics command on L2SW4 results in:
L2SW4# show mls interface GigabitEthernet 1/1 statistics <output omitted> output queues dropped:
queue: threshold1 threshold2 threshold3 queue 0 0 0 0 queue 1 309232345 450 0 queue 2 300 10 0 queue 3 91 0 0 Repeating this command results in the counters incrementing for queue 1 threshold 1. What are two options for reducing the packet loss on this interface while preserving the end-to- end DSCP marking? (Choose two)
Exhibit
Options
- AConfigure I/O#1 to mark this traffic with a different DSCP that is mapped to a less congested
- BIncrease the buffer allocation for input queue 1
- CIncrease the buffer allocation for output queue 1
- DAlter the service policy to police to a higher CIR
- EChange the egress queue map on L2SW4 to map this traffic to a less congested queue
How the community answered
(37 responses)- A5% (2)
- B14% (5)
- C70% (26)
- D11% (4)
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