350-601 · Question #6
What are two types of FC/FCoE oversubscription ratios? (Choose two.)
The correct answer is D. edge ISL bandwidth to core ISL bandwidth E. host bandwidth to storage bandwidth. Oversubscription in FC/FCoE networks refers to the ratio of potential demand to actual available bandwidth. Two standard types are: (D) edge ISL bandwidth to core ISL bandwidth - this measures how much aggregated edge traffic must compete for core inter-switch link capacity, a…
Question
What are two types of FC/FCoE oversubscription ratios? (Choose two.)
Options
- Aswitch processing power to end-node processing power
- Bport bandwidth to uplink bandwidth
- Cserver storage to end-node count
- Dedge ISL bandwidth to core ISL bandwidth
- Ehost bandwidth to storage bandwidth
How the community answered
(27 responses)- A7% (2)
- B4% (1)
- D89% (24)
Explanation
Oversubscription in FC/FCoE networks refers to the ratio of potential demand to actual available bandwidth. Two standard types are: (D) edge ISL bandwidth to core ISL bandwidth - this measures how much aggregated edge traffic must compete for core inter-switch link capacity, a critical SAN design metric; and (E) host bandwidth to storage bandwidth - this compares total host I/O demand against available backend storage bandwidth, revealing whether storage ports are a bottleneck. The other options describe ratios not recognized as standard FC/FCoE oversubscription metrics.
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