Specifications

Waters Network Systems User’s Manual Page 39
GSM-2108/GSM-1008SFP
transmitted and received via this port. When disabled, the port is blocked and no traffic can be
transmitted through this port. Port State is configurable by the user. If you set a port’s state to
Disable, then that port cannot pass traffic, even though Link is displayed.
Default: Enable.
Mode:
Set the speed and duplex mode for the port. If the media is 1Gbps fiber, it will always be
1000Mbps and the duplex mode can only be full. If the media is TP, the speed/duplex mode is
comprised of speeds of 10/100/1000Mbps and the duplex mode is either full or half duplex. The
following table summarizes the function the media supports.
Media type NWay Speed Duplex
1000M TP ON/OFF 10/100/1000M Full for all, Half for 10/100
1000M Fiber ON/OFF 1000M Full
In auto-negotiation mode, there is no default value. In forced mode, the default value depends
on the setting.
Flow Control:
There are two modes to choose in flow control, including Enable and Disable. If flow control is
set to Enable, both parties can send PAUSE frames to the transmitting device(s) in case the
receiving port is too busy to handle the packets. When set to Disable, there will be no flow
control in the port. Packets will be dropped if there is too much to handle.
Default: Enable.
5.8.3 Simple Counter
The function of the Simple Counter is to collect information and provide counting about the
traffic of the port, whether the packet is good or bad.
In Figure 5.13, the screen shows all ports’ counter information at the same time. Each data field
is 20-digits. If counting is overflows, the counter will be reset and restart counting. The data is
updated based on the time interval defined by the user. The valid range is three to ten seconds.
The refresh interval is used to set the update frequency. Default update time is three seconds.
Figure 5.13 – Simple Counter