HP 8/24 Brocade Fabric OS Administrator's Guide v6.3.0 (53-1001336-01, July 20 - Page 514
Interfabric link configuration, Configuring an IFL for both edge and backbone connections
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21 Interfabric link configuration If using FCIP in your FC-FC Routing configuration, you must first configure FCIP tunnels. Once a tunnel is created, it defaults to a disabled state. Then configure the VE_Port or VEX_Port. After the appropriate ports are configured, enable the tunnel. NOTE This section is applicable only to Fabric OS fabrics and does not apply to M-EOS fabrics. See the Fibre Channel over IP Administrator's Guide for instructions on how to configure FCIP tunnels. Interfabric link configuration Before configuring an IFL, be aware that you cannot configure both IFLs (EX_Ports, VEX_Ports) and ISLs (E_Ports) from a backbone fabric to the same edge fabric. Configuring an interfabric link involves disabling ports and cabling them to other fabrics, configuring those ports for their intended use, and then enabling the ports. To configure an 8-Gbps IFL, both the EX_Port and the connecting E_Port must be 8-Gbps ports. ATTENTION To ensure that fabrics remain isolated, disable the port prior to inserting the cable. If you are configuring an EX_Port, disable the port prior to making the connection. Configuring an IFL for both edge and backbone connections 1. On the FC router, disable the port that you are configuring as an EX_Port (the one connected to the Fabric OS switch) by issuing the portDisable command. switch:admin> portdisable 7/10 You can verify that port 7 has been disabled by issuing the portShow command for the port. 2. Configure each port that connects to an edge fabric as an EX_Port or VEX_Port. Note the following: • portCfgVEXPort works only on VE_Ports. • portCfgEXPort (only on the FC ports on the FC router) commands work only on ports that are capable of FC-FC routing. Use the portCfgEXPort or portCfgVEXPort command to: • Enable or disable EX_Port or VEX_Port mode. • Set the fabric ID (avoid using fabric IDs 1 and 128, which are the default IDs for backbone connections). NOTE If an edge fabric with redundant links to the backbone fabric becomes segmented, hosts may lose connectivity to imported targets. Repair the edge fabric, then use the portCfgEXPort command to disable all EX_Ports to the edge fabric, and enable the EX_Ports again to restore connectivity. 472 Fabric OS Administrator's Guide 53-1001336-01
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