AT-2911GP Gigabit Fiber Ethernet PoE+ Adapters Installation and User’s Guide

IPv4 Checksum Offload

The IPv4 Checksum Offload feature allows the adapter to verify the IPv4 checksum to enhance IPv4 receive and transmit performance and reduce CPU utilization.

To enable or disable the IPv4 Checksum Offload feature, do the following:

1.Access the Advanced Properties.

See “Accessing Advanced Properties” on page 87.

2.Select IPv4 Checksum Offload in the Property box.

The IPv4 Checksum Offload page is displayed as shown in Figure 66.

Figure 66. IPv4 Checksum Offload Page

3.Select one of the following options:

Rx & Tx Enabled — The adapter verifies IPv4 Checksum for both receiving and transmitting packets. This is the default setting.

Disable — The CPU verifies IPv4 checksum.

Rx Enabled — The adapter verifies IPv4 Checksum only for receiving packets.

Tx Enabled — The adapter verifies IPv4 Checksum only for transmitting packets.

4.Click OK.

100

Page 100
Image 100
Allied Telesis AT-2911GP/LXLC, AT-2911GP/SXSC, AT-2911GP/SXLC, AT-2911GP/LXSC manual IPv4 Checksum Offload