ZyXEL MI-7248 User Guide - Page 80

Note: Due to space limitation, the port name may be truncated in, some web configurator screens.

Page 80 highlights

Chapter 12 Port Setup Table 14 Port Setup (continued) LABEL DESCRIPTION Name Enter a descriptive name that identifies this port. You can enter up to 64 alphanumerical characters. Note: Due to space limitation, the port name may be truncated in some web configurator screens. Type This field displays 10/100/1000M for Gigabit connections. Speed/Duplex Select the speed and the duplex mode of the Ethernet connection on this port. Choices are Auto, 10M/Half Duplex, 10M/Full Duplex, 100M/Half Duplex, 100M/ Full Duplex and 1000M/Full Duplex. 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. 802.1p Priority This priority value is added to incoming frames without a (802.1p) priority tag. BPDU Control Configure the way to treat BPDUs received on this port. You must activate bridging control protocol transparency in the Switch Setup screen first. Select Peer to process any BPDU (Bridge Protocol Data Units) received on this port. Select Tunnel to forward BPDUs received on this port. Select Discard to drop any BPDU received on this port. Select Network to process a BPDU with no VLAN tag and forward a tagged BPDU. Apply Click Apply to save your changes to the switch's run-time memory. The switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring. Cancel Click Cancel to reset the fields. 80 MS-7206 User's Guide

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Chapter 12 Port Setup
MS-7206 User’s Guide
80
Name
Enter a descriptive name that identifies this port. You can enter up to 64 alpha-
numerical characters.
Note: Due to space limitation, the port name may be truncated in
some web configurator screens.
Type
This field displays
10/100/1000M
for Gigabit connections.
Speed/Duplex
Select the speed and the duplex mode of the Ethernet connection on this port.
Choices are
Auto
,
10M/Half Duplex
,
10M/Full Duplex
,
100M/Half Duplex
,
100M/
Full Duplex
and
1000M/Full Duplex
.
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.
802.1p Priority
This priority value is added to incoming frames without a (802.1p) priority tag.
BPDU Control
Configure the way to treat BPDUs received on this port. You must activate bridging
control protocol transparency in the
Switch Setup
screen first.
Select
Peer
to process any BPDU (Bridge Protocol Data Units) received on this port.
Select
Tunnel
to forward BPDUs received on this port.
Select
Discard
to drop any BPDU received on this port.
Select
Network
to process a BPDU with no VLAN tag and forward a tagged BPDU.
Apply
Click
Apply
to save your changes to the switch’s run-time memory. The switch loses
these changes if it is turned off or loses power, so use the
Save
link on the top
navigation panel to save your changes to the non-volatile memory when you are done
configuring.
Cancel
Click
Cancel
to reset the fields.
Table 14
Port Setup
(continued)
LABEL
DESCRIPTION