Question

A storage administrator is extending a Fibre Channel ISL between two data centers 80 km apart over dark fiber at 8 Gbps. After bringing up the link, throughput is far below line rate even though no errors are logged and the link stays up. Which action is most likely to resolve the performance problem?

Accepted Answer

Increase the number of buffer-to-buffer credits configured on the extended ISL ports

Answer

Enable FCoE on the ISL to allow lossless Ethernet PFC behavior

Answer

Change the port type from E_Port to F_Port on both switches

Answer

Lower the port speed to 4 Gbps to reduce frame transmission jitter