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Industrial Managed
Ethernet Switch – EH9711
User Manual
Page
30
of
223
Field Label
Subfield Label
Description
Factory Default
Hdx
Half-duplex mode of the link. Click a checkbox to enable the
option.
-
Adv Speed
When Speed is set as auto i.e. auto negotiation, the port will only advertise the
specified speeds (10M, 100M, 1G) to the link partner. By default, port will
advertise all the supported speeds if speed is set as Auto.
10M
Click to enable 10 Mbps link speed for this port.
-
100M
Click to enable 100 Mbps link speed for this port.
-
1G
Click to enable 1 Gbps link speed for this port.
-
Flow Control
When Auto Speed is selected on a port, this section indicates the flow control
capability that is advertised to the link partner.
When a fixed-speed setting is selected, that is what is used. The Current Rx column
indicates whether pause frames on the port are obeyed, and the Current Tx column
indicates whether pause frames on the port are transmitted. The Rx and Tx settings
are determined by the result of the last Auto Negotiation.
Check the configured column to use flow control. This setting is related to the
setting for Configured Link Speed.
NOTICE: The 100FX standard does not support Auto Negotiation, so when in
100FX mode the flow control capabilities will always be shown as "disabled"
Enable
The Flow Control mechanism can be enabled to avoid packet
loss when congestion occurs.
Curr Rx
Symbol
√
for showing that flow control is active on the
receiving traffic.
Symbol
for showing that flow control is not active on the
receiving traffic.
Curr Tx
Symbol
√
for showing that flow control is active on the
transmitting traffic.
Symbol
for showing that flow control is not active on the
transmitting traffic.
2.3
ERPS
E
thernet
R
ing
P
rotection
S
witching (
ERPS
) is a protocol for Ethernet layer network rings. The protocol specifies the protection
mechanism for sub-50 ms delay time. ERPS provides highly reliable and stable protection in the ring topology, and it never
forms loops, which can affect network operation and service availability. Figure 2.18 depicts an example of ring topology
forming by four Atop’s managed switch series.