Lantronix
SM12XPA Web User Guide
33848 Rev. A
Page
50
of
473
When Auto Speed is selected on a port, this page 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.
Cable type
: At the dropdown select the 10G cable type setting. The default is
Auto
.
Auto
: SFP interface in "auto" mode. Automatic SerDes tuning for optical and DAC-3m cables (default).
DAC-1m
: SFP interface in "DAC-1m" mode. Manual SerDes tuning specifically for DAC-1m cables.
DAC-2m
: SFP interface in "DAC-2m" mode. Manual SerDes tuning specifically for DAC-2m cables.
DAC-3m
: SFP interface in "DAC-3m" mode. Manual SerDes tuning specifically for DAC-3m cables.
DAC-5m
: SFP interface in "DAC-5m" mode. Manual SerDes tuning specifically for DAC-5m cables.
Adv Duplex
: When duplex is set as Auto (auto negotiation), the port will only advertise the specified duplex as
either Fdx or Hdx to the link partner. By default, port will advertise all the supported duplexes if the Duplex is
Auto.
Adv Speed
: When Speed is set as Auto (auto negotiation), the port will only advertise the specified speeds (10M
100M 1G 2.5G 5G 10G) to the link partner. By default, ports will advertise all the supported speeds if speed is set
as Auto.
Note
: The 100FX standard doesn't support Auto Negotiation, so when in 100FX mode the flow control
capabilities will always be shown as "disabled".
PFC
: When PFC (Priority Flow Control per 802.1Qbb) is enabled on a port then flow control on a priority level is
enabled. Through the Priority field, one or more ranges of priorities can be configured (e.g., '0-3,7' which equals
'0,1,2,3,7'). PFC is not supported through auto negotiation. PFC and Flow Control cannot both be enabled on the
same port.
Maximum Frame Size
: Enter the maximum frame size allowed for the switch port, including FCS. The range is
1518-10240 bytes.
Frame Length Check
: Configures if frames with incorrect frame length in the EtherType/Length field will be
dropped. An Ethernet frame contains a field EtherType which can be used to indicate the frame payload size (in
bytes) for values of 1535 and below.
If the EtherType/Length field is above 1535, it indicates that the field is used as an EtherType (indicating which
protocol is encapsulated in the payload of the frame).
If "Frame Length Check" is enabled, frames with payload size less than 1536 bytes are dropped, if the
EtherType/Length field doesn't match the actual payload length.
If "Frame Length Check" is disabled, frames are not dropped due to frame length mismatch.
Note
: No drop counters count frames are dropped due to frame length mismatch.
Buttons
Refresh
: Click to refresh the Port link Status page manually.
Apply
: Click to save changes.
Reset
: Click to undo any changes made locally and revert to previously saved values.