User Manual

User Manual rev. 1.0. Feb. 2016
303
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.
 Resolved Tx Tw :
The resolved Tx Tw for this link. Note : NOT the link partner
The resolved value that is the actual "tx wakeup time " used for this link (based on EEE
information exchanged via LLDP).
 Resolved Rx Tw :
The resolved Rx Tw for this link. Note : NOT the link partner
The resolved value that is the actual "tx wakeup time " used for this link (based on EEE
information exchanged via LLDP).
 EEE in Sync
Shows whether the switch and the link partner have agreed on wake times.
Red - Switch and link partner have not agreed on wakeup times.
Green - Switch and link partner have agreed on wakeup times.
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