ZyXEL GS1500-24P User Guide - Page 56

System > Port Setting, continued

Page 56 highlights

Chapter 6 System Table 9 System > Port Setting (continued) LABEL DESCRIPTION Speed/ Duplex Select the speed and the duplex mode of the Ethernet connection on this port. Choices are Auto, 10M/Half, 10M/Full, 100M/Half, 100M/Full and 1000M/Full (Gigabit connections only). Selecting Auto (auto-negotiation) allows one port to negotiate with a peer port automatically to obtain the connection speed and duplex mode that both ends support. When auto-negotiation is turned on, a port on the Switch negotiates with the peer automatically to determine the connection speed and duplex mode. If the peer port does not support auto-negotiation or turns off this feature, the Switch determines the connection speed by detecting the signal on the cable and using half duplex mode. When the Switch's auto-negotiation is turned off, a port uses the pre-configured speed and duplex mode when making a connection, thus requiring you to make sure that the settings of the peer port are the same in order to connect. Flow Control A concentration of traffic on a port decreases port bandwidth and overflows buffer memory causing packet discards and frame losses. Flow Control is used to regulate transmission of signals to match the bandwidth of the receiving port. The Switch uses IEEE802.3x flow control in full duplex mode and backpressure flow control in half duplex mode. IEEE802.3x flow control is used in full duplex mode to send a pause signal to the sending port, causing it to temporarily stop sending signals when the receiving port memory buffers fill. Back Pressure flow control is typically used in half duplex mode to send a "collision" signal to the sending port (mimicking a state of packet collision) causing the sending port to temporarily stop sending signals and resend later. Select Flow Control to enable it. Apply Click Apply to save your changes to the Switch. Port The Port column displays the port number. State The State column indicates if the port is Enabled or Disabled. Speed/Duplex Config The Config column displays the port's Speed/Duplex configuration. Actual The Actual column displays the port's current Speed/Duplex status. Flow Control Config The Config column displays if Flow Control has been configured to be turned On or Off for the port. Actual The Actual column displays the port's current Flow Control status. 56 GS1500-24P User's Guide

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Chapter 6 System
GS1500-24P User’s Guide
56
Speed/
Duplex
Select the speed and the duplex mode of the Ethernet connection on this
port. Choices are
Auto
,
10M/Half
,
10M/Full
,
100M/Half
,
100M/Full
and
1000M/Full
(Gigabit connections only).
Selecting
Auto
(auto-negotiation) allows one port to negotiate with a peer
port automatically to obtain the connection speed and duplex mode that
both ends support. When auto-negotiation is turned on, a port on the
Switch negotiates with the peer automatically to determine the connection
speed and duplex mode. If the peer port does not support auto-negotiation
or turns off this feature, the Switch determines the connection speed by
detecting the signal on the cable and using half duplex mode. When the
Switch’s auto-negotiation is turned off, a port uses the pre-configured
speed and duplex mode when making a connection, thus requiring you to
make sure that the settings of the peer port are the same in order to
connect.
Flow Control
A concentration of traffic on a port decreases port bandwidth and overflows
buffer memory causing packet discards and frame losses.
Flow Control
is
used to regulate transmission of signals to match the bandwidth of the
receiving port.
The Switch uses IEEE802.3x flow control in full duplex mode and
backpressure flow control in half duplex mode.
IEEE802.3x flow control is used in full duplex mode to send a pause signal
to the sending port, causing it to temporarily stop sending signals when
the receiving port memory buffers fill.
Back Pressure flow control is typically used in half duplex mode to send a
"collision" signal to the sending port (mimicking a state of packet collision)
causing the sending port to temporarily stop sending signals and resend
later. Select
Flow Control
to enable it.
Apply
Click
Apply
to save your changes to the Switch.
Port
The
Port
column displays the port number.
State
The
State
column indicates if the port is
Enabled
or
Disabled
.
Speed/Duplex
Config
The
Config
column displays the port’s
Speed/Duplex
configuration.
Actual
The
Actual
column displays the port’s current
Speed/Duplex
status.
Flow Control
Config
The
Config
column displays if
Flow Control
has been configured to be
turned
On
or
Off
for the port.
Actual
The
Actual
column displays the port’s current
Flow Control
status.
Table 9
System > Port Setting
(continued)
LABEL
DESCRIPTION