Changing port speeds

The 1-Gbps/2-Gbps/4-Gbps ports are capable of transmitting and receiving at 1-Gbps, 2-Gbps, or

4-Gbps. The ports can be configured for either transmission speed or to sense the transmission speed of the device to which it is connected. Table 25 describes the port speeds. To change the port speed, perform the following procedure:

1.Select one or more 1-Gbps/2-Gbps/4-Gbps ports in the faceplate display.

2.Select Port > Port Properties.

3.Select the option that corresponds to the port speed you want.

4.Click OK to write the new port speed to the switch.

Table 25 Port speeds

State

Description

 

 

Auto-Detect

Matches the transmission speed of the connected device. This is the

 

default.

 

 

1Gbps

Sets the transmission speed to 1-Gbps

 

 

2Gbps

Sets the transmission speed to 2-Gbps

 

 

4Gbps

Sets the transmission speed to 4-Gbps

 

 

Changing port types

The ports can be configured to self-discover the proper type to match the device or switch to which it is connected. Table 26 describes the port types. To change the port type, perform the following procedure:

1.Select one or more ports in the faceplate display.

2.Select Port > Port Properties.

3.Select the option for the port type you want.

4.Click OK to write the new port type to the switch.

Table 26

Port types

 

 

 

State

 

Description

 

 

 

F_Port

 

Fabric port — supports a single public device (N_Port)

 

 

 

FL_Port

 

Fabric loop port — self discovers a single device (N_Port) or a loop of up to

 

 

32 public devices (NL_Port). The default internal port type.

 

 

 

G_Port

 

Generic port — self discovers as an F_Port or an E_Port

 

 

 

GL_Port

 

Generic loop port — self discovers as an F_Port, FL_Port, or an E_Port.

 

 

GL_Port is the default external port type. A single device on a public loop

 

 

will attempt to configure as an F_Port first, then if that fails, as an FL_Port.

 

 

 

Device scan

The Device Scan feature queries the connected device during login for FC-4 descriptor information. Disable this parameter only if the scan creates a conflict with the connected device.

McDATA® 4Gb SAN Switch for HP p-Class BladeSystem user guide 101

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HP AA-RW20A-TE manual Changing port speeds, Changing port types, Device scan