HP 8/80 Fabric OS Administrator's Guide v6.4.0 (53-1001763-01, June 2010) - Page 471
F_Port trunking, Prerequisites for F_Port trunking
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F_Port trunking 19 TABLE 87 Trunking over distance for the Brocade 48000, DCX Backbone, and the DCX-4S Long distance mode Distance Number of 2 Gbps ports Number of 4 Gbps ports LE 10 km 48 (six 8-port trunks) 48 (six 8-port trunks) L0 Normal See note below 48 (six 8-port trunks) LD 200 km 4 (one 2-port trunk per switch) 0 LD 250 km 4 (one 2-port trunk per switch) 0 LD 500 km 0 0 LS Static See note below NOTE The L0 mode supports up to 5 km at 2 Gbps, up to 2 km at 4 Gbps, and up to 1 km at 8 Gbps. The distance for the LS mode is static. You can specify any distance greater than 10 km. The distance supported on the DCX-4S depends on the available buffers, number of back-end ports, and the number of ports that are offline. For more information on setting port speeds, refer to "Performing Advanced Configuration Tasks" on page 35. F_Port trunking F_Port trunking is enabled between two separate Fabric OS switches that support trunking and where all the ports on each switch reside in the same quad and are running the same speed. Trunk groups form when you connect two or more cables on one Fabric OS switch to another Fabric OS switch with ports in the same port group or quad. A port group or a quad is a set of sequential ports, for example ports 0-3 in the figure shown below. The Brocade 300, 5100, 5300, 5410, 5424, 5450, 5480, 8000, and VA-40FC platforms support a trunk group with up to eight ports. The trunking groups are based on the user port number, with contiguous eight ports as one group, such as 0-7, 8-15, 16-23 and up to the number of ports on the switch. FIGURE 65 Trunk group configuration for the Brocade 5100 Prerequisites for F_Port trunking Make sure that the following conditions exist before attempting F_Port trunking: • Both modules (edge switch and the switch running in AG mode) have the Trunking licenses enabled. • The ports have Trunking enabled by displaying the port configuration using the portCfgShow command. • The ports are set to the same speed within the trunk. Fabric OS Administrator's Guide 431 53-1001763-01
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