AT-2814FX Installation and User's Guide

Fast Ethernet Fiber (SC) ExpressCard

 

Modifying Advanced Properties

 

This chapter includes the following topics:

»  Overview

»  Starting the Device Manager

»  Flow Control

»  Interrupt Moderation

»  Jumbo Packet

»  Large Send Offload (IPv4)

»  Log Status Messages

»  Max IRQ per Sec

»  Network Address

»  Receive Buffers

»  Speed & Duplex

»  TCP/UDP Checksum Offload (IPv4)

»  Transmit Buffers

»  Wake From Shutdown

»  Wake-Up Capabilities

Overview

To modify the advanced properties of the AT-2814FX ExpressCard, you must access the Device Manager on your operating system, then go to each advanced property page. To start the Device Manager, see Starting the Device Manager.

Guidelines

Here are the guidelines to modifying the advanced properties:

■  To change the advanced property settings, you must have Administrator privileges.

■  When you upgrade the driver software, the settings of the advanced properties may change. Verify the settings after upgrading the driver software.

Starting the Device Manager

The procedures for accessing the Device Manager are different among Windows XP, Windows Vista and Windows 7. To start the Device Manager on your system, perform one of the following procedures:

»  Device Manager on Windows XP

»  Device Manager on Windows Vista and Windows 7

Device Manager on Windows XP

To start the Device Manager on Windows XP, do the following:

1. Right-click on Computer and select Properties.

The System Properties window is opened as shown in Figure 16.

 

 

Figure 16. System Properties Window on Windows XP

2. Select the Hardware Tab.

The Hardware page is shown in Figure 17.

 

Figure 17. Hardware Page on Windows XP

3. Click Device Manager.

The Device Manager window opens shown in Figure 18.

 

Figure 18. Device Manager Window on Windows XP

4. In the Device Manager window, click the + next to the Network Adapters folder.

The selection expands to show the list of installed network adapter cards as shown in Figure 19.

 

Figure 19. Device Manager with an Expanded List on Windows XP

5. Double-click on Allied Telesis AT-2814FX.

The properties window opens as shown in Figure 20.

 

Figure 20. Properties Window

6. Click the Advanced tab.

The Advanced Properties window opens as shown in Figure 21.

 

Figure 21. Advanced Properties Window

Device Manager on Windows Vista and Windows 7

The procedures for accessing the Device Manager on Windows Vista and Windows 7 are identical. To start the Device Manager on Windows Vista or Windows 7, do the following:

1. Right-click on Computer and select Properties.

The System window is opened as shown in Figure 22.

 

Figure 22. System Window on Windows Vista and 7

2. Click Device Manager on the left side bar.

The Device Manager window opens as shown in Figure 23.

 

Figure 23. Device Manager Window on Windows Vista and 7

3. In the Device Manager window, click the w next to the Network Adapters folder.

The selection expands to show the list of installed network adapter cards. See Figure 24.

 

Figure 24. Device Manager with an Expanded List on Windows Vista & 7

4. Double-click on Allied Telesis AT-2814FX.

The properties window pops up as shown in Figure 25.

 

 

Figure 25. Properties Window on Windows Vista and 7

Flow Control

The Flow Control feature allows you to control the flow between the AT-2814FX ExpressCard and the link partner. You can enable or disable this feature to process received pause frames and transmit pause frames.

To enable or disable the Flow Control feature, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Flow Control in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 26.

 

Figure 26. Flow Control Page

5. Select one of the following options:

■  Disabled— The AT-2814FX ExpressCard ignores PAUSE frames.

■  Tx & Rx Enabled— The AT-2814FX ExpressCard processes pause frames when receiving and transmits pause frames This is the default setting.

6. Click OK.

Interrupt Moderation

The Interrupt Moderation feature allows you to limit the rate of interrupts to the CPU during packet transmission and packet reception. When this feature is enabled, interrupts are handled as a group so that the CPU utilization decreases; however, the latency may increase. The interrupt rate is specified using Max IRQ per Sec.

To enable or disable the Interrupt Moderation feature, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Interrupt Moderation in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 27.

 

Figure 27. Interrupt Moderation Page

5. Select one of the following options:

■  Disabled— The Interrupt Moderation feature is disabled

■  Enabled— The Interrupt Moderation feature is enabled. This is the default setting.

6. Click OK.

Jumbo Packet

The Jumbo Packet property specifies the size of the frame that the AT-2814FX ExpressCard supports. The network performance usually improves when the larger packet size is specified; however, the network must be capable of supporting such large packets.

To change the Jumbo Packet size, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Jumbo Packet in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 28.

 

Figure 28. Jumbo Packet Page

5. Select one of the following options:

■  1514 Bytes— The AT-2814FX ExpressCard supports up to 1514 bytes in a packet size. This is the default value.

■  4088 Bytes— The AT-2814FX ExpressCard supports up to 4088 bytes in a packet size.

■  9014 Bytes— The AT-2814FX ExpressCard supports up to 9014 bytes in a packet size.

6. Click OK.

Large Send Offload (IPv4)

The Large Send Offload feature for IPv4 traffic allows you to control the load of sending out large packets. When this feature is enabled, the AT-2814FX ExpressCard segments large packets and reduces the CPU load.

To enable or disable the Large Send Offload (IPv4) feature, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

to start the Device Manager on your system.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Large Send Offload (IPv4) in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 29.

 

Figure 29. Large Send Offload (IPv4) Page

5. Select one of the following options:

■  Disabled— The AT-2814FX ExpressCard does not segment packets.

■  Enabled — The AT-2814FX ExpressCard segments large packets before sending them out. This option reduces the CPU load as the AT-2814FX ExpressCard performs the segmentation. This is the default setting.

6. Click OK.

Log Status Messages

The Log Status Messages property specifies which messages to be generated and stored in the event log file.

To change the Log Status Messages setting, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Log Status Messages in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 30.

 

Figure 30. Log Status Messages

5. Select one of the following options:

■  All Messages— All messages are generated and stored in the event log.

■  Errors — Only error messages are generated and stored in the event log file.

■  None— No message is generated.

■  Status Messages — An event log entry is generated every time the link status changes and stored in the event log file. This is the default setting.

■  Warnings — Only warning and error messages are generated and stored in the event log file.

6. Click OK.

Max IRQ per Sec

The Max IRQ per Sec property specifies the rate of interrupts to the CPU during packet transmission and packet reception. The interrupt Moderation feature uses this property to group CPU interrupts. When the Interrupt Moderation is disabled, the value of Max IRQ per Sec is ignored.

To change the Max IRQ per Sec value, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Max IRQ per Sec in the Property box.

The Max IRQ per Sec page is displayed as shown in Figure 31.

 

Figure 31. Max IRQ per Sec Page

4. In the Value textbox, enter a number from 1000 to 5000.

The default value is 5000.

5. Click OK.

Network Address

The Network Address allows you to replace the MAC address originally assigned to the AT-2814FX ExpressCard with a user-defined address. The user-defined address that you assign to the ExpressCard is called a locally administered address.

A locally administered address overrides the original MAC address stored in the AT-2814FX ExpressCard hardware. When you change the MAC address, be sure to assign a unique MAC address.

To assign or change the Network Address, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Network Address in the Property box.

The Network Address page is displayed as shown in Figure 32.

 

Figure 32. Network Address Page

4. In the Value textbox, enter a locally administered address for the AT-2814FX ExpressCard.

Here are guidelines to assigning a locally administered address:

■  The address must be unique.

■  The address consists of a 12-digit hexadecimal number, for example, “000C46005501.”

■  The range is from 0000 0000 0001 to FFFF FFFF FFFD.

■  Do not use a MAC address whose least significant bit of the most significant octet is 1. The MAC address is a multicast address.

5. Click OK.

Receive Buffers

The Receive Buffers property sets the number of receive buffers that is allocated for the AT-2814FX ExpressCard. Increasing this value may enhance performance in receiving traffic, but consumes more system memory.

To change the Receive Buffers value, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select the Receive Buffers property in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 33.

 

Figure 33. Receive Buffers Page

5. Select one of the following numbers:

■  256— This is the default value.

■  512

6. Click OK.

Speed & Duplex

The Speed & Duplex property set both the link speed and the duplex mode of the AT-2814FX ExpressCard.

To change the Speed & Duplex property, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Speed & Duplex in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 34.

 

Figure 34. Speed & Duplex Page

5. Select one of the following options:

■  100 Mbps Full Duplex— 100 Mbps speed in the full duplex mode. This is the default setting.

■  100 Mbps Half Duplex— 100 Mbps speed in the half duplex mode.

6. Click OK.

TCP/UDP Checksum Offload (IPv4)

The TCP/UDP Checksum Offload (IPv4) function enables the AT-2814FX ExpressCard to compute the checksum of transmitting packets and verify the checksum of receiving packets, taking load off from the CPU on your laptop.

To enable or disable the TCP/UDP Checksum Offload (IPv4) feature, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select TCP/UDP Checksum Offload (IPv4) in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 35.

 

Figure 35. TCP/UDP Checksum Offload (IPv4) Page

5. Select one of the following options:

■  On— Enables the TCP/UDP Checksum Offload function. This is the default setting.

■  Off— Disables the TCP/UDP Checksum Offload function.

6. Click OK.

Transmit Buffers

The Transmit Buffers property specifies the number of transmit buffers that is allocated for the AT-2814FX ExpressCard. Increasing this value may enhance performance in transmitting traffic, but consumes more system memory.

To change the Transmit Buffers, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select the Transmit Buffers property in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 36.

 

Figure 36. Transmit Buggers Page

5. Select one of the following numbers:

■  256— This is the default value.

■  512

6. Click OK.

Wake From Shutdown

The Wake From Shutdown feature enables your laptop to start from the shutdown state when the AT-2814FX ExpressCard receives the types of frame that are specified by Wake-Up Capabilities.

To enable or disable the Wake From Shutdown function, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select the Wake From Shutdown property in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 37.

 

Figure 37. Wake From Shutdown Page

5. Select one of the following options:

■  On— Enables the Wake From Shutdown feature.

■  Off— Disables the Wake From Shutdown feature. This is the default setting.

6. Click OK.

Wake-Up Capabilities

The Wake-Up Capabilities property specifies the type of frame that the Wake From Shutdown feature uses. When the Wake From Shutdown feature is enabled, your laptop starts from the shutdown state as the AT-2814FX ExpressCard receives the type of frame that the Wake-Up Capabilities property specifies. When the Wake From Shutdown is disabled, the value of the Wake-Up Capabilities is ignored.

To change the Wake-Up Capabilities setting, do the following:

1. Access the Device Manger on your operating system.

See Starting the Device Manager.

2. Click the Advanced tab.

The Advanced page is displayed. See Figure 21.

3. Select Log Status Messages in the Property box.

4. Click on the q in the Value box.

The options are displayed as shown in Figure 38.

 

Figure 38. Wake-Up Capabilities Page

5. Select one of the following options:

■  Link Change— Your laptop wakes up from the shutdown state when the link status is changed if the Wake From Shutdown feature is enabled.

■  Magic Packet— Your laptop wakes up from the shutdown state when the AT-2814FX ExpressCard receives a special packet called a magic packet if the Wake From Shutdown feature is enabled.

■  None— Your laptop does not wake up from the shutdown state even when the Wake From Shutdown feature is enabled.

■  Magic Packet & Pattern Match— Your laptop wakes up from the shutdown state when the AT-2814FX ExpressCard receives a special packet called a magic packet or a packet that matches the pattern specified by the operating system. The Wake From Shutdown feature must be enabled for your laptop to behave this way. This is the default setting.

■  Pattern Match — Your laptop wakes up from the shutdown state when the AT-2814FX ExpressCard receives a packet that matches the pattern specified by the operating system. The Wake From Shutdown feature must be enabled for your laptop to behave this way.

See Microsoft’s Technet website, technet.microsoft.com for more information.

6. Click OK.