METRODATA LTD
WCM5100
Quick Start Guide
76-02-087 Rev A
32 of 62
4.2.1.3 Auto Negotiation
The port may be configured to automatically determine the optimal operating parameters
for link speed and duplex. Alternatively, it may be disabled to enable configuration of fixed
operating parameters.
Note, the Auto Negotiating algorithm works optimally with a link partner that also supports
auto negotiation. For operation where one end of a link uses fixed configuration and does
not negotiate, it must be noted that only Speed, 10 or 100M, can be determined, the auto
negotiating node will fall back to use half duplex. 1000M operation requires auto
negotiation.
4.2.1.4 Speed
When in auto negotiating mode, the speed displayed is the highest that will be advertised
to the link partner. In non auto negotiating mode, the speed is manually set by the user.
4.2.1.5 Duplex
When in auto negotiating mode, the duplex displayed is the highest that will be advertised
to the link partner. In non auto negotiating mode, the duplex is manually set by the user.
4.2.1.6 Negotiated
this item displays the actual operating parameters of the link following auto negotiation and
may take the values:
1000/FD
1000Mbps, Full Duplex
100/FD
100Mbps, Full Duplex
100/HD
100Mbps, Half Duplex
10/FD
10Mbps, Full Duplex
10/HD
10Mbps, Half Duplex
4.2.1.7 MDI/MDIX
By default, the ports support automatic crossover configuration when required. The port
may be configured as follows:
AUTO
Auto Sense and configure
MDI
Present MDI interface, direct connection to switch
MDIX
Present MDIX Interface, direct connection to PC
