If users experience packet drops during large file transfers across an HPE network, which parameter should be checked for performance tuning?

Question

Options

• AMTU size
• BLACP priority
• CVLAN priority
• DMAC aging timer

• A
  87% (47)
• B
  7% (4)
• C
  2% (1)
• D
  4% (2)

Explanation

MTU (Maximum Transmission Unit) size is the key parameter because packet drops during large file transfers often indicate a mismatch between the MTU configured on network interfaces and the actual path MTU - oversized frames get fragmented or dropped, degrading throughput significantly. Tuning MTU (commonly to 9000 bytes for "jumbo frames" on high-performance HPE networks) eliminates unnecessary fragmentation and reduces per-packet overhead.

Why the distractors are wrong:

• B. LACP priority controls which links are active in a link aggregation group - it affects bandwidth bonding, not packet sizing or drop behavior.
• C. VLAN priority (802.1p/QoS tagging) influences traffic queuing order, not whether packets are dropped due to size constraints.
• D. MAC aging timer governs how long MAC addresses stay in the switch's CAM table - a stale entry causes a brief flood, not sustained drops during large transfers.

Memory tip: Think "Massive Transfer Upgrade" - when large transfers suffer drops, MTU is your first dial to turn. If the data is big and it's dropping, think size (MTU), not priorities or timers.

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