Black Box LGB1048A, User Manual

Page: 56 / 279

User Manual
Publication date: Feb., 2008
Revision A1
48
Parameter description:
Link:
Show that if the link on the port is active or not. If the link is connected to
a working-well device, the Link will show the link “Up”; otherwise, it will
show “Down”. This is determined by the hardware on both devices of the
connection.
No default value.
State:
Show that the communication function of the port is “Enabled” or
“Disabled”. When it is enabled, traffic can be transmitted and received via
this port. When it is disabled, no traffic can be transferred through this
port. Port State is configured by user.
Default: Enabled.
Auto Negotiation:
Show the exchange mode of Ethernet MAC. There are two modes
supported in the switch. They are auto-negotiation mode “Enabled” and
forced mode “Disabled”. When in “Enabled” mode, this function will
automatically negotiate by hardware itself and exchange each other the
capability of speed and duplex mode with other site which is linked, and
comes out the best communication way. When in “Disabled” mode, both
parties must have the same setting of speed and duplex, otherwise, both
of them will not be linked. In this case, the link result is “Down”.
Default: Enabled
Speed / Duplex Mode:
Display the speed and duplex of all port. There are three speeds 10Mbps,
100Mbps and 1000Mbps supported for TP media, and the duplex
supported is half duplex and full duplex. If the media is 1Gbps fiber, it is
1000Mbps supported only. The status of speed/duplex mode is
determined by 1) the negotiation of both local port and link partner in
“Auto Speed” mode or 2) user setting in “Force” mode. The local port has
to be preset its capability.
Default: None, depends on the result of the negotiation.
Flow Control:
Show each port’s flow control status.
There are two types of flow control in Ethernet, Backpressure for half-
duplex operation and Pause flow control (IEEE802.3x) for full-duplex
operation. The switch supports both of them.
Default: Disabled
Tx Byte:
Transmitted bytes on this port.