HP StorageWorks 1606 Brocade Web Tools Administrator's Guide v6.3.0 (53-100134 - Page 233

Configuring a port for long distance 14 TABLE 16 Long-distance settings and license requirements Value Description Extended Fabrics License Required? L0 No long-distance setting is enabled. The maximum supported link distance is No 10 km, 5 km, or 2.5 km for ports at speeds of 1 Gbps, 2 Gbps, and 4 Gbps, 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 Gbps, 250 km at 2 Gbps, or 125 km at 4 Gbps, 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 statically Yes configured based on the desired link distance. The LS-level link can operate at distances up to 500 km at 1 Gbps, 250 km at 2 Gbps, 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 in order to avoid fabric segmentation. 1. Open the Switch Administration window as described on page 41. 2. Click Show Advanced Mode. 3. Click the Extended Fabric tab. 4. This step is switch-specific: For Brocade DCX and Brocade 48000 enterprise-class platforms, click the slot subtab that corresponds to the correct slot for the logical switch. For Brocade 200E, 300, 4012, 4016, 4018, 4020, 4024, 4100, 4900, 5000, 5100, 5300, 7600 switches, the 7500, 7500E, 7800 Extension switches, and the Encryption Switch, proceed directly to the next step. 5. Select a distance that corresponds to the port from the Long Distance menu. Depending on the distance selected, this might require a license. For information about the various distances, refer to Table 16. If you select a long-distance setting of LD or LS, you must also type a value in the Desired Distance column for that port number: a. Double-click the Desired Distance field for the port, as shown in Figure 105. b. Type a number in the field to indicate the distance in kilometers. The allowed values depend on the port capability: • If the port capability is 8 GB, type a number between 10 and 63 inclusive. • If the port capability is 4 GB, type a number between 10 and 125, inclusive. Web Tools Administrator's Guide 201 53-1001343-01