Table 139 lists supported long-wave transceiver distances and maximum supported distances under ideal
operating conditions. Some long-wave optical transceivers can transmit up to a distance of 100 km.
Table 139 Long-wave transceiver distances
Distance/rateTransceiverInterconnect speed
10 km ISL at 10 Gb/s (C-series)
25 km ISL at 8 Gb/s (B-series)
10 Gb/s 10 km SFP
8 Gb/s 25 km SFP
10 Gb/s
10 km ISL at 8 Gb/s (B-series and C-series)
3.3 km at 8 Gb/s (H-series)
6.6 km at 4 Gb/s (H-series)
10 km at 2 Gb/s (H-series)
8 Gb/s 10 km SFP
8 Gb/s
10 km ISL at 4 Gb/s
(B-series, C-series)
4 Gb/s 10 km SFP4 Gb/s
4 km ISL at 4 Gb/s
(C-series)
4 Gb/s 4 km SFP
30 km ISL at 4 Gb/s
(B-series 8 Gb/s switches only)
4 Gb/s 30 km SFP (extended-
reach)
35 km ISL at 2 Gb/s
(B-series and M-series)
2 Gb/s 35 km SFP (extended-
reach)
2 Gb/s
10 km ISL at 2 Gb/s
(B-series, C-series, M-series)
2 Gb/s 10 km SFP
10 km ISL at 1 Gb/s (B-series)1 Gb/s 10 km GBIC1 Gb/s
10 km ISL at 1 Gb/s (C-series, M-series)1 Gb/s 10 km SFP
35 km ISL at 1 Gb/s (C-series, M-series)1 Gb/s 35 km SFP
100 km ISL at 1 Gb/s (B-series)1 Gb/s 100 km GBIC
See Table 80 on page 173, Table 81 on page 174, and Table 82 on page 175 for detailed information
about distance rules for long-wave transceivers.
NOTE:
To ensure adequate link performance, see
“Extended fabric settings for Fibre Channel switches” on page 287.
Wavelength division multiplexing
This section describes the following:
• WDM overview, page 284
• WDM network implementation, page 284
• WDM system architectures, page 284
SAN Design Reference Guide 283
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