Chapter 4: Web management
258
NS3550-8T-2S Industrial Managed Switch User Manual
The page includes the following fields:
Object
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 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.
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 parther
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.
Buttons
• Click
Auto-refresh
to refresh the page automatically. Automatic refresh occurs
every three seconds.
• Click
Refresh
to refresh the page immediately.
Network diagnostics
This section provides the physical layer and IP layer network diagnostics tools for
troubleshooting. The diagnostic tools are designed for network managers to help them
quickly diagnose problems and better service customers.