Port Status and Basic Configuration

 

Viewing Port Status and Configuring Port Parameters

 

 

Status or

Description

Parameter

 

 

 

Mode

10/100/1000Base-T:

(Continued)

• Auto-10: Allows the port to negotiate between half-duplex (HDx) and full-duplex (FDx) while keeping

 

speed at 10 Mbps. Also negotiates flow control (enabled or disabled). HP recommends Auto-10 for links

 

between 10/100 autosensing ports connected with Cat 3 cabling. (Cat 5 cabling is required for 100 Mbps

 

links.).

 

• 10HDx: 10 Mbps, Half-Duplex

 

• 10FDx: 10 Mbps, Full-Duplex

 

• Auto (default): Senses speed and negotiates with the port at the other end of the link for port operation

 

(MDI-X or MDI). To see what the switch negotiates for the Auto setting, use the CLI show interfaces

 

brief command or the “ 3. Port Status” option under “1. Status and Counters” in the menu interface.

 

• Auto-100: Uses 100 Mbps and negotiates with the port at the other end of the link for other port operation

 

features.

 

• Auto-1000: Uses 1000 Mbps and negotiates with the port at the other end of the link for other port

 

operation features.

 

• 100Hdx: Uses 100 Mbps, half-duplex.

 

• 100Fdx: Uses 100 Mbps, Full-Duplex

 

Port Mode Notes: Ensure that the device attached to the port is configured for the same setting that you

 

select here. If using “Auto”, the device to which the port connects must also be using “Auto” and operate

 

in compliance with the IEEE 802.3ab “Auto Negotiation” standard for 1000Base-T networks.

Gigabit fiber-optic ports (Gigabit-SX, Gigabit-LX, and Gigabit-LH):

•1000FDx: 1000 Mbps (1 Gbps), Full Duplex only

•Auto (default): The port operates at 1000FDx and auto-negotiates flow control with the device connected to the port.

Auto-MDIX

The switch supports Auto-MDIX on 10Mb, 100Mb, and 1 Gb T/TX (copper) ports. (Fiber ports and 10-gigabit

(2600, 2600-

ports do not use this feature.)

PWR, and

• Automdix: Configures the port for automatic detection of the cable type (straight-through or crossover).

2800 Only)

• MDI: Configures the port for connecting to a PC or other MDI device with a crossover cable.

 

• MDIX: Configures the port for connecting to a switch, hub, or other MDI-X device with a straight-through

 

cable.

Flow Control • Disabled (default): The port does not generate flow control packets, and drops any flow control packets it receives.

•Enabled: The port uses 802.3x Link Layer Flow Control, generates flow control packets, and processes received flow control packets.

With the port mode set to Auto (the default) and Flow Control enabled, the switch negotiates Flow Control on the indicated port. If the port mode is not set to Auto, or if Flow Control is disabled on the port, then Flow Control is not used.

Group

Menu Interface: Specifies the static trunk group, if any, to which a port belongs.

(menu)

 

or

CLI: Appears in the show lacp command output to show the LACP trunk, if any, to which a port belongs.

Trunk Group

Note: An LACP trunk requires a full-duplex link. In most cases, HP recommends that you leave the port

(CLI)

Mode setting at Auto (the default). Refer to “Trunk Group Operation Using LACP” on page 12-18.

 

 

For more on port trunking, see Chapter 12, “Port Trunking” .

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