3Com Baseline 2928 PWR Plus User Manual page 90

Configuration procedure
# Set the rate of GigabitEthernet 1/0/4 to 1000 Mbps.
Select Device > Port Management from the navigation tree, click the Setup tab to enter the page
shown in Figure
Figure 1-5 Configure the rate of GigabitEthernet 1/0/4
Select 100 in the Speed dropdown list.
Select GigabitEthernet 1/0/4 on the chassis front panel.
Click Apply to end the operation.
# Batch configure the auto-negotiation rate range on GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and
GigabitEthernet 1/0/3 as 100 Mbps.
Select Auto 100 in the Speed dropdown list on the page shown in
Select GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and GigabitEthernet 1/0/3 on the chassis front
panel.
Click Apply to end the operation.
1-5, and make the following configurations:
1-7
Figure 1-6.