Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) - Manual (Page 95)

Symptom Probable cause and recommended action
Packets are being dropped between two FICON units. Distance between devices is impacting data.
When planning cable needs, the following criteria must
be considered:
• Distance considerations
• Fiber Optic Sub Assembly (FOSA) type (SW or
LW)
• Cable specifications (SM or MM)
• Patch Panel Connections between FOSA ports
(link loss .3-5 dB per)
• Maximum allowable link budget (dB) loss
For cabling, the most important factor of a Fibre
Channel link is the selection of the Fibre Optic Sub
Assembly (FOSA) and matching cable type, to support
the required distance. Both ends of the optical link must
have the matching FOSA (SFP) types.
Maintaining and Troubleshooting FICON
FICON Administrator's Guide 93
53-1003144-01