Dell Brocade 6520 Command Reference Supporting Fabric OS v7.1.0 - Page 725

portCfgOctetSpeedCombo 2 portCfgOctetSpeedCombo Sets port speed combination for a port octet. SYNOPSIS portcfgoctetspeedcombo [slot]port combo portcfgoctetspeedcombo [slot]port -default DESCRIPTION NOTES OPERANDS Use this command to configure the speed for a port octet. A Condor 3 ASIC has six octets, each of which contains eight ports. You can configure up to three different speed combinations. When you configure a given port, the combination applies to all ports in the octet. You can specify the octet by any port within the octet. To change the first octet, for example, you can specify any port from 0 through 7 as a port argument value. The following speed combinations are supported: • Autonegotiated or fixed port speeds of 16 Gbps,8 Gbps,4 Gbps, and 2 Gbps (1) • Autonegotiated or fixed port speeds of 10 Gbps,8 Gbps,4 Gbps, and 2 Gbps (2) • Autonegotiated or fixed port speeds of 16 Gbps and 10 Gbps (3) A port octet can be set to any of the three octet combinations, and the ports in the octet can run on any speed supported by its octet combination. This applies to both autonegotiated and fixed speeds. Before you change the octet speed combination, make sure that the following conditions are met: • All fixed speed ports are configured at a speed supported by the new combination. • All online ports in autonegotiation mode have a negotiated speed supported by the new combination. • If a port is running at a speed not supported in the new combo, you must disable the port or change the speed to a supported fixed speed before you can set the combo. If any of the ports does not meet the conditions, the operation fails with an appropriate error message. You can change the port speed or disable the ports and retry the command. The octet combination default is 1. Use the portCfgOctetSpeedCombo port -default command to reset the octet combination to its default value. This command is supported only on Condor 3-based platforms and only on the first eight ports of a blade (slot) or a standalone switch. On the Brocade FC8-32E and Brocade FC8-48E port blades, only the default octet combination is supported. On the Brocade 6505, the command is not supported. The operation of the portCfgOctetSpeedCombo can be disruptive. For example, when you install a 10G SFP in the first eight ports of the switch and subsequently change the speed for this octet from default to 2 or 3, the SFP does not receive a state change and continues to show the mod_inv state (Incompatible vendor or module speed mismatch). You must disable and re-enable the ports for the SFP to come online with the configured speed of 10 Gbps. The same is the case when you replace a 10G SFP with an 8G SFP or a 16G SFP with a 10G SFP. The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for details. This command has the following operands: slot On bladed systems only, specifies the slot number of the port to be configured, followed by a slash (/). port Sets the speed combination for the specified port and all other ports in the octet port group. Fabric OS Command Reference 697 53-1002746-01