A user is reporting unusual slowness when trying to transfer a large file to an NFS server from a workstation. The administrator runs tracepath and gets the following output: Which of the following BEST describes the issue and a possible solution?

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A. The path MTU is lower than the source MTU. Reduce the source MTU setting. `tracepath` is designed to determine the Path MTU. If the output indicates that the effective MTU of the path is lower than the MTU used by the source, packets larger than the path MTU will be dropped or fragmented, causing transfer slowness. Reducing the source MTU to match the path MTU resolves this.

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B. There is latency at the storage device. Work with the storage team to correct the issue. While slowness can be storage-related, `tracepath` specifically analyzes network path characteristics like MTU and hop-by-hop latency, not storage device performance.

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C. There is latency on an intermediate router. Increase the path MTU to compensate. Increasing the path MTU is incorrect because `tracepath` identifies the maximum *possible* MTU that can traverse the path; attempting to send larger packets would exacerbate fragmentation or drops, not compensate for latency.

Answer

D. There are dropped packets at an intermediate router. Work with the network team to correct the Although dropped packets cause slowness, the specific information from `tracepath` regarding MTU mismatch indicates a more precise network configuration issue than general packet drops, which is better addressed by adjusting MTU.

A user is reporting unusual slowness when trying to transfer a large file to an NFS server from a workstation. The administrator runs tracepath and gets the following output: Which of the following…

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