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DescriptionQ443
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Q443ArchBroadcomASIC interview problem

Pause headroom at 400 Gb/s

TechniquesArchMicroarchitectureInterconnectPauseGb/s
DifficultyMedium
TopicComputer Architecture
LanguageSystemVerilog
Format4 choices
01

Problem

A 400 Gb/s receive port must absorb traffic for 2 microseconds after it sends a pause signal. Ignore packet overhead and safety margin. What minimum raw data headroom is required?

02

Answer choices (4)