Green Ethernet - FibroLAN Falcon-RX/812/G/A User Manual

Falcon R-Class | User Guide
Receive and Transmit Queue Counters
The number of received and transmitted packets per input and output queue.
Receive Error Counters
Rx Drops
Rx CRC/Alignment
Rx Undersize
Rx Oversize
Rx Fragments
Rx Jabber
Rx Filtered
1
Short frames
2
Long frames are frames that are longer than the configured maximum frame length for this port.
Transmit Error Counters
Tx Drops
Tx Late/Exc. Coll

Green Ethernet

This page allows the user to configure the port power savings features.
EEE is an abbreviation for Energy Efficient Ethernet defined in IEEE 802.3az. EEE is a power saving
option that reduces the power usage when there is low or no traffic utilization.
EEE works by powering down circuits when there is no traffic. When a port gets data to be
transmitted all circuits are powered up. The time it takes to power up the circuits is named wakeup
time. The default wakeup time is 17 us for 1Gbit links and 30 us for other link speeds. EEE devices
must agree upon the value of the wakeup time in order to make sure that both the receiving and
transmitting device has all circuits powered up when traffic is transmitted. The devices can exchange
wakeup time information using the LLDP protocol.
EEE works for ports in auto-negotiation mode, where the port is negotiated to either 1G or 100 Mbit
full duplex mode.
For ports that are not EEE-capable the corresponding EEE checkboxes are grayed out and thus
impossible to enable EEE for.
The EEE port settings relate to the currently selected stack unit, as reflected by the page header.
39
The number of frames dropped due to lack of receives buffers or egress
congestion.
The number of frames received with CRC or alignment errors.
The number of short
1
Short frames are frames that are smaller than 64 bytes.
2
The number of long
2
Long frames are frames that are longer than the configured maximum
frame length for this port.
The number of short
2
The number of long
The number of received frames filtered by the forwarding process.
are frames that
The number of frames dropped due to output buffer congestion.
The number of frames dropped due to excessive or late collisions.
1
frame received with valid CRC.
frames received with valid CRC.
1
frame received with invalid CRC.
frames received with invalid CRC.
are smaller than 64 bytes.