HP StorageWorks 2/32 Brocade Web Tools Administrator's Guide (53-0000194-01, N - Page 231
Configuring a Port for Long Distance
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14 Table 14-1 Long-Distance Settings and License Requirements Value Description Extended Fabrics License Required? L0 No long-distance setting is enabled. The maximum supported link No distance is 10 km, 5 km, or 2.5 km for ports at speeds of 1 Gbit/sec, 2 Gbit/sec, and 4 Gbit/sec, respectively. LE Extended normal setting is enabled, 10 km (6 miles) or less. No LD Dynamic setting is enabled. Buffer credits for the given E_Port are Yes dynamically configured based on the actual link distance, as long as this is less than the desired distance. If the actual link distance exceeds the desired distance, the desired distance is used to allocate the buffers. The LD-level link can operate at distances up to 500 km at 1 Gbit/ sec, 250 km at 2 Gbit/sec, or 125 km at 4 Gbit/sec, depending on the switch platform and the availability of frame buffers within the port group. LS Static setting is enabled. Buffer credits for the given E_Port are Yes statically configured based on the desired link distance. The LS-level link can operate at distances up to 500 km at 1 Gbit/ sec, 250 km at 2 Gbit/sec, or 125 km at 4 Gbit/sec, depending on the switch platform and the availability of frame buffers within the port group Configuring a Port for Long Distance When you configure a long-distance ISL, ensure that the ports on both sides of the ISL have the same configuration, to avoid fabric segmentation. To configure a port for long-distance connection 1. Launch the Switch Admin module as described on page 3-3. 2. Click the Extended Fabric tab. 3. This step is switch-specific: For SilkWorm 24000 and 48000 directors, click the slot subtab that corresponds to the correct slot for the logical switch. For SilkWorm 200E, 3250, 3850, 3900, 4100, 4900, and 7500 switches, proceed directly to the next step. Web Tools Administrator's Guide Publication Number: 53-0000194-01 14-3