3Com SuperStack II 3000 TX, User Manual

Page: 51 / 144

Setting Up the Switch Ports 4-11
Setting Up the Switch Ports
With the Switch Management screen displayed,
choose the management level
Port . Choose the
appropriate port, then select the SETUP button.
The Port Setup screen is displayed, as shown in
Figure 4-11 .
If the port is an ATM OC-3c Module port, the ATM
Port Setup screen is displayed. For more informa-
tion, refer to the “SuperStack II Switch ATM OC-3c
Module User Guide”.
The Port Setup screen shows the following fields:
Port ID This read-only field shows the ID of the port
you have chosen to set up.
Media Type This read-only field shows the media
type of the link connected to this port.
Port Speed This read-only field shows the speed
and duplex mode of the link; HD indicates Half
Duplex, FD indicates Full Duplex.
Port State Enable / Disable This field allows you to
enable or disable the port. To prevent unauthorized
access, we recommend that you disable any unused
ports.
Link State Present / Not Available This read-only
field shows the state of the link:
■
Present — The port is operating normally
■
Not Available — The link has been lost
Figure 4-11 Port Setup screen
Lost Links This read-only field displays the number
of times the link has been lost since the Switch was
last reset. If the number in this field is not zero, you
should check your cables and replace any that may
be damaged.
If the port is directly connected to an endstation,
the Lost Links counter increments each time the
endstation goes through a power-off/on cycle.
Intelligent Flow Management Enable / Disable
This field allows you to enable or disable Intelligent
Flow Management (IFM). IFM minimizes packet loss
which can occur with conventional switches.
Intelligent Flow Management should be disabled if
the port is connected to a repeated segment where
the traffic is mainly local to that segment.