242 - Monitor Pages
RocketLinx MP1204-XT User Guide
: 2000644 Rev. A
LLDP | EEE
LLDP | 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.
Item
Monitor | LLDP | EEE
Local Port
The port on which LLDP frames are received or transmitted.
Tx Tw
The link partner's maximum time that transmit path can hold-off sending data
after deassertion of LPI.
Rx Tw
The link partner's time that receiver would like the transmitter to hold-off to allow
time for the receiver to wake from sleep.
Fallback Receive
Tw
The link partner'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
The link partner's Echo Tx Tw value.
The respective echo values shall be defined as the local link partners reflection
(echo) of the remote link partners respective values. When a local link partner
receives its echoed values from the remote link partner it can determine whether or
not the remote link partner has received, registered and processed its most recent
values.
For example, if the local link partner receives echoed parameters that do not match
the values in its local MIB, then the local link partner infers that the remote link
partners request was based on stale information.
Echo Rx Tw
The link partner's Echo Rx Tw value.
Summary of Contents for RocketLinx MP1204-XT
Page 28: ...28 Installing the Hardware RocketLinx MP1204 XT User Guide 2000644 Rev A System Reset ...
Page 36: ...36 Web Interface Overview RocketLinx MP1204 XT User Guide 2000644 Rev A Ending a Session ...
Page 180: ...180 Configuration Pages RocketLinx MP1204 XT User Guide 2000644 Rev A Configuration DDMI ...
Page 414: ...414 Glossary RocketLinx MP1204 XT User Guide 2000644 Rev A Y ...
