User`s manual

User Manual
Publication date: July, 2006
Revision A2
34
Default is Enable.
Auto Negotiate:
Only “Enable” and “Disable” two states can be chosen. “Enable” means
the port adopted the auto-negotiation algorithm to exchange the
capability with the linked partner and adjusted its speed, duplex and flow
control. When enabled, the speed, duplex mode and flow control mode
may change. “Disable” means the forced mode is adopted. When
disabled, if you want to set up a connection successfully, you must have
both port configuration of local port and linked partner be the same. If
their configuration is different, the link will not be set up successfully. In
the switch, the 1Gbps fiber module, it supports auto and forced modes.
Default: Auto Negotiation is enabled.
Notice: When you are in Disable mode, you must handle it carefully
because this may cause the connection failed.
Speed Duplex:
Set the speed and duplex of the port. In speed, 10/100Mbps baud rate is
available for Fast Ethernet, Gigabit module in port 25, 26. If the media is
1Gbps fiber, it is always 1000Mbps and the duplex is full only. If the
media is TP, the Speed/Duplex is comprised of the combination of speed
mode, 10/100/1000Mbps, and duplex mode, full duplex and half duplex.
The following table summarized the function the media supports.
Media type NWay Speed Duplex
100M TP ON/OFF 10/100M Full/Half
1000M TP ON/OFF 10/100/1000M Full for all, Half for 10/100
1000M Fiber ON/OFF 1000M Full
In Auto-negotiation mode, no default value. In Forced mode, default
value depends on your setting.
Flow Control:
There are two modes to choose in flow control, including Enable and
Disable. If flow control is set Enable, both parties can send PAUSE frame
to the transmitting device(s) if the receiving port is too busy to handle.
When it is set Disable, there will be no flow control in the port. It drops
the packet if too much to handle.
Default: Enable