Lantech LGS-2624C, User Manual, Page: 134 / 279

2-8.5 EEE
By using EEE power savings can be achieved at the expense of traffic
latency. This latency occurs due to that the circuits EEE turn off to save
power, need time to boot up before sending traffic over the link. This time is
called "wakeup time". To achieve minimal latency, devices can use LLDP to
exchange information about their respective tx and rx "wakeup time ", as a
way to agree upon the minimum wakeup time they need.
This page provides an overview of EEE information exchanged by LLDP.
Web Interface
To show LLDP EEE neighbours:
1. Click LLDP, than click EEE to show discoved EEE devices
2. Click Refresh for manual update web screen
3. Click Auto-refresh for auto-update web screen
Parameter description:
Local Port
The port on which LLDP frames are received or transmitted.
Tx Tw
The link parther's maximum time that transmit path can holdoff sending data
after deassertion of LPI.
Rx Tw
The link parther's time that receiver would like the transmitter to holdoff to
allow time for the receiver to wake from sleep.
Fallback Receive Tw
The link parther's fallback receive Tw.
A receiving link partner may inform the transmitter of an alternate desired
Tw_sys_tx. Since a receiving link partner is likely to have discrete levels for
savings, this provides the transmitter with additional information that it may
use for a more efficient allocation. Systems that do not implement this
option default the value to be the same as that of the Receive Tw_sys_tx.
Echo Tx Tw