Chapter 8 Application
ENC User’s Guide
219
Copy
Click this to copy the selected port’s settings to another port. The screen appears as
shown next.
Figure 165
Copy
Specify the port number to which you want to copy the selected port’s settings. You
can use a hyphen and/or comma (,) to specify multiple ports. For example, 1,3-5,7
means ports 1, 3, 4, 5 and 7. Click OK to apply the changes to the Port
Management > Basic Setting screen.. Otherwise, click Cancel to discard the
change and close this screen.
Port
This is the port index number.
Active
Select this check box to enable a port. The factory default for all ports is enabled. A
port must be enabled for data transmission to occur.
Speed/Duplex Select the speed and the duplex mode of the Ethernet connection on this port. The
choices are Auto, 10M/Half Duplex, 10M/Full Duplex, 100M/Half Duplex and
100M/Full Duplex for a 1000Base-T connection. 1000M/Full Duplex is supported
by both 1000Base-T and 1000Base-X connections. 10G/Full Duplex is supported
by the 10 Gigabit Ethernet connections.
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 device 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 device
determines the connection speed by detecting the signal on the cable and using half
duplex mode. When the device’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 device uses IEEE 802.3x flow control in full duplex mode and Back Pressure flow
control in half duplex mode.
IEEE 802.3x 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.
802.1p
Priority
This priority value is added to incoming frames without a (802.1p) priority queue
tag.
Table 100
Port Management > Basic Setting (continued)
LABEL
DESCRIPTION
Summary of Contents for ENTERPRISE NETWORK CENTER
Page 2: ......
Page 6: ...Document Conventions ENC User s Guide 6 Server DSLAM Firewall Switch Router ...
Page 8: ...Contents Overview ENC User s Guide 8 ...
Page 15: ...15 PART I User s Guide ...
Page 16: ...16 ...
Page 46: ...Chapter 1 Web Configurator ENC User s Guide 46 ...
Page 83: ...83 PART II Technical Reference ...
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Page 86: ...Chapter 3 Dashboard ENC User s Guide 86 Figure 58 Dashboard B C D E A ...
Page 92: ...Chapter 3 Dashboard ENC User s Guide 92 ...
Page 186: ...Chapter 7 Report ENC User s Guide 188 ...
Page 258: ...Chapter 9 Maintenance ENC User s Guide 262 ...
Page 266: ...Appendix A Product Specifications ENC User s Guide 270 ...
Page 286: ...Appendix C Pop up Windows JavaScript and Java Permissions ENC User s Guide 290 ...
Page 296: ...Appendix D Open Software Announcements ENC User s Guide 300 ...