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Priority :
Priority is the Layer 2 priority to be used for the specified application type. Choose one of
the eight priority levels (0 through 7).
DSCP :
DSCP is the DSCP value to be used to provide Diffserv node behavior for the specified
application type as defined in IETF RFC 2474. Contain one of 64 code point values (0 through
63).
3-8.5 EEE
By using EEE, power savings can be achieved at the expense of traffic latency. This latency
occurs because the EEE circuits turn off to save power and 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 neighbors:
1. Click LLDP, than click EEE to show discover EEE devices
2. Click Refresh for manual update Web screen
3. Click Auto-refresh for auto-update Web screen
Figure 3-8.5: The LLDP Neighbors EEE information
NOTE: If your network without any devices has the EEE
function enabled, then the table will show “No LLDP EEE
information found”.
Parameter description:
Local Port :
The port on which LLDP frames are received or transmitted.
Tx Tw :
The link partner’s maximum time that the transmit path can hold off sending data after
reassertion 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 to the same value as that of the Receive
Tw_sys_tx.