Digital Networks North America DNswitch 800 - Manual (Page 53)

DNswitch 800 Configuring and Monitoring the Switch 43
Port Configuration
Use the Port Configuration menus to configure any port on the switch.
Figure 3-36. Port Configuration
Parameter Default Description
Flow Control Mode Enabled Allows you to enable or disable flow control for all
ports on the switch.
Admin Status Enable Allows you to disable a port due to abnormal
behavior (e.g., excessive collisions), and then re-
enable it after the problem has been resolved.
You may also disable a port for security reasons.
Duplex Status Auto-
Negotiation Used to set the current port duplex mode or auto-
negotiation. The default is auto-negotiation.
Flow Control status Enabled Used to enable or disable flow control. Flow
control can eliminate frame loss by “blocking”
traffic from end stations or segments connected
directly to the switch when its buffers fill. Back
pressure is used for half duplex and IEEE 802.3x
for full duplex. Note that flow control should not be
used if a port is connected to a hub.
802.1Q Trunk Status Disabled Used to enable/disable the VLAN trunk status for
the port. A VLAN Trunk link between two VLAN-
aware switches will carry traffic from all VLANs,
allowing VLAN tagged frames to maintain their
VLAN ID across multiple switches. When
enabled, a port joins all configured VLANs and the
untagged port VLAN ID (PVID) is set to 4000, a
reserved VLAN ID for trunk ports.