Vlans - Advantech EKI-8500 Series User Manual

Item
Flow Control
PFC
Maximum Frame
Size
Excessive Collision
Mode
Frame Length Check Check an option to configure if frames with incorrect frame length in
Save
Reset
4.3.3

VLANs

4.3.3.1 Global VLAN Configuration
The function allows you to configure VLAN control settings.
1. Navigate to Configuration > VLANs and click Configuration.
EKI-8500 Series User Manual
Description
If auto speed is selected on a port, this section indicates the flow
control capability that is advertised to the link partner, otherwise fixed-
speed is used if selected. 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 setting.
Check a setting to use flow control. This setting is related to the
setting for Configured Link Speed.
Note: The 100FX standard doesn't support Auto Negotiation. In
100FX mode the flow control capabilities are shown as disabled.
When PFC (802.1Qbb Priority Flow Control) is enabled on a port flow
control on a priority level is enabled. Through the Priority field, range
(one or more) 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
Flowcontrol cannot both be enabled on the same port.
Enter the maximum frame size allowed for the switch port, including
FCS. The range is 1518-10240 bytes.
Configure the port transmit collision behavior.
 Discard: Discard frame after 16 collisions (default).
Restart: Restart backoff algorithm after 16 collisions.

the EtherType/Length field are to 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 and EtherType/Length
field doesn't match the actually payload length, frames with payload
size less than 1536 bytes are dropped. If frame length check is
disabled, frames are not dropped due to frame length mismatch.
Note: No drop counters count frames dropped due to frame length
mismatch
Click Save to store the settings.
Click Reset to clear the settings.
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