Dell Broadcom NetXtreme Family of Adapters Betriebsanweisung PDF herunterladen (Seite 246)

NetXtreme II User Guide

September 2013

Broadcom Corporation

Page 246 Managing Ethernet Controller (Port) Document INGSRVT78-CDUM100-R

• It is possible for the sum of all maximum bandwidth values across the four functions of a single port to exceed the

physical link speed value of either 10 Gbps or 1 Gbps. This case is considered as oversubscription. In a case where

oversubscription congestion occurs on transmit, the Relative Bandwidth Weight value comes into effect.

•The Maximum Bandwidth setting is only valid in the context of Tx, but not Rx.

Relative Bandwidth Weight (%).

• The relative bandwidth setting represents a weight or importance of a particular function. There are four functions per

port and the weight is being used in order to arbitrate between the functions in case of congestion.

• The sum of all weights for the four functions on a single port are either 0 or 100.

•A value of 0 for all functions means that each function will be able to transmit at 25% of the physical link speed, not to

exceed the Maximum Bandwidth setting

• A value for a function between 1 and 100 represent a percentage of the physical link speed and is used by an internal

arbitration logic as a input value (weight). A higher value will cause this function to transmit relatively more data,

compared to a function (on the same port) that has defined a lower value.

HARDWARE AND RESOURCE CONFIGURATION WIZARD: COMMIT AND FINISH

Click Apply to commit changes to the system or click Cancel. Click Finish to save your changes and exit the wizard.

MANAGING ETHERNET CONTROLLER (PORT)

From BACS, you can group various traffic classes in to priority group and allocate bandwidth to each priority group.

When the Ethernet controller is selected in the Object Explorer panel, following four tabs will be displayed in the context view

panel:

• Information Tab

• Configuration tab

• Statistics Tab

• Diagnostic Tab

VIEWING PORT LEVEL INFORMATION

Selecting Ethernet controller in the object explorer will allow user to view various types of information at the port level.

1. Select PortX (where X is either 0 or 1) below Adapter in the object explorer.

2. Various components of the port will be displayed below port in the object explorer. You can click on the “+” icon near Port

to expand or collapse the tree below.

3. Select Information tab in the context view panel on the right side.

VIEWING VITAL SIGNS

The Vital Signs section of the Information tab has useful information about the network adapters that are installed in your

system, such as the link status of the adapter and general network connectivity.

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Dell Broadcom NetXtreme Family of Adapters Betriebsanweisung Seite 246