Draytek Vigor2130 Series User Manual page 83

Flow Control
Maximum Frame
Excessive Collision Mode
Power Control
Vigor2130 Series User's Guide
If flow control is enabled by checking Configured box, both
parties can send PAUSE frame to the transmitting device(s)
if the receiving port is too busy to handle. If not, there will
be no flow control in the port. It drops the packet if too much
to handle.
Current Rx: indicates whether pause frames on the port are
obeyed.
Current Tx: indicates whether pause frames on the port are
transmitted.
This module offers 1518~9600 (Bytes) length to make the
long packet for data transmission.
There are two modes for you to choose when excessive
collision happened in half-duplex condition.
Discard - It determines whether the MAC drops frames after
an excessive collision has occurred. If yes, a frame is
dropped after excessive collision. This is IEEE Standard
802.3 half-duplex flow control operation.
Restart - It determines whether the MAC retransmits frames
after an excessive collision has occurred. If set, a frame is
not dropped after excessive collisions, but the backoff
sequence is restarted. This is a violation of IEEE Standard
802.3, but is useful in non-dropping half-duplex flow control
operation.
The Configured column allows for changing the power
savings mode parameters per port.
Disabled: All power savings mechanisms disabled.
ActiPHY: Link down power savings enabled.
PerfectReach: Link up power savings enabled.
Enabled: Both link up and link down power savings
enabled.
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