Dell PowerConnect Brocade 300 Fabric OS Administrator's Guide v7.1.0 - Page 587
FC router port cost configuration
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FC router port cost configuration 24 4 95 10:00:00:05:1e:37:00:45 10.32.156.31 "5300" FCR WWN: 10:00:00:05:1e:12:e0:00, Dom ID: 100, Info: 10.32.156.50, "fcr_Brocade 5300" EX_Port FID Neighbor Switch Info (WWN, enet IP, name 4 95 10:00:00:05:1e:37:00:45 10.32.156.31 "Brocade 5300" 5 95 10:00:00:05:1e:37:00:45 10.32.156.31 "Brocade 5300" 6 95 10:00:00:05:1e:37:00:45 10.32.156.31 "Brocade 5300" 12. Enter the iflshow command to display the FCR details and ensure the fabric is functioning correctly. switch:FID128:root> iflshow E-Port EX-Port FCR-WWN FCR-FID FCR-Name Speed BW 1 : 350 --> 12 10:00:08:00:88:04:93:94 39 fcr_sw 4G 8G TRUNK FC router port cost configuration The FC router port cost is set automatically. This section provides information about the router port cost and describes how you can modify the cost for a port if you want to change the default value. FC routers optimize the usage of the router port links by directing traffic to the link with the smallest router port cost. The FC router port cost is similar to the link cost setting available on E_Ports, which allows you to customize traffic flow. The router port link cost values are either 1000 or 10,000. The router module chooses the router port path based on the lowest cost for each FID connection. If multiple paths exist where one path costs less than the others, then the lowest cost path is used. If exchange-based routing has not been disabled and multiple paths exist with the same lowest cost, there will be load sharing over these paths. The FC router port cost feature optimizes the usage of the router port links by directing the traffic to a link with a smaller cost. Every IFL has a default cost. The default router port cost values are: • 1000 for a legacy (v5.1 or XPath FCR) IFL • 1000 for an EX_Port IFL • 10,000 for a VEX_Port IFL The FC router port cost settings are 0, 1000, or 10,000. If the cost is set to 0, the default cost will be used for that IFL. The FC router port cost is persistent and is saved in the existing port configuration file. FC router port cost is passed to other routers in the same backbone. Link costs from the front domain to the translate (xlate) domain remain at 10,000. You can use the lsDbShow command from the edge fabric to display these link costs. Fabric OS Administrator's Guide 587 53-1002745-02
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