Dell Brocade 6510 Fabric OS Administrator's Guide v7.1.0 - Page 609
Upgrade and downgrade considerations for FC-FC routing
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Upgrade and downgrade considerations for FC-FC routing 24 Physical chassis 1 Physical chassis 2 IFL E Logical switch 1 E ISL E Logical switch 5 F B (Default logical switch) (Default logical switch) Fabric ID 128 Fabric ID 128 Logical switch 2 Fabric ID 1 Logical switch 6 Fabric ID 1 Edge fabric FID 20 Allows XISL use Allows XISL use C ISL E F Logical switch 3 E E Logical switch 7 Fabric ID 15 E Fabric ID 15 IFL IFL EX Logical switch 4 EX Logical switch 8 EX A (Base switch) Fabric ID 8 E XISL (Base switch) E Fabric ID 8 E E ISL Legacy FC router Fabric ID 8 FIGURE 84 Backbone-to-edge routing across base switch using FC router in legacy mode Upgrade and downgrade considerations for FC-FC routing When you upgrade to Fabric OS v7.0.0 or later, EX_Ports remain functional and you can continue to perform all FC router operations on the switch. Brocade recommends that you save your FC-FC routing configuration (using the configUpload command) before performing any downgrades. For further instructions on downgrading, refer to Chapter 9, "Installing and Maintaining Firmware". How replacing port blades affects EX_Port configuration If you replace an FR4-18i blade with an 8-Gbps port blade or FX8-24 blade, the EX_Port configuration remains the same for the first 16 ports on the 8-Gbps port blade (and for the first 12 FC ports on the FX8-24 blade). For all other ports on the blade, the EX_Port configuration is cleared. No ports are persistently disabled. If you replace an 8-Gbps port blade with an FX8-24 blade, the EX_Port configuration remains the same for the first 12 FC ports on the FX8-24 blade. If you replace an 8-Gbps port blade or FX8-24 blade with another 8-Gbps port blade, the EX_Port configuration remains the same. Displaying the range of output ports connected to xlate domains The edge fabric detects only one front domain from an FC router connected through multiple output ports. The output port of the front domain is not fixed to 0; the values can be in a range from 129 through 255. The range of the output ports connected to the xlate domain is from 1 through 128. This range enables the front domain to connect to 127 remote xlate domains. Fabric OS Administrator's Guide 609 53-1002745-02
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