D-Link xStack DGS-3600 Series User Manual - Port Error Disabled
xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch
The Switch allows the user to configure two types of gigabit connections;
1000M/Full_M
and
1000M/Full_S
. Gigabit connections only support full duplex connections and take on certain
characteristics that are different from the other choices listed.
The
1000M/Full_M
(master) and
1000M/Full_S
(slave) parameters refer to connections running
a 1000BASE-T cable for connection between the Switch port and other device capable of a
gigabit connection. The master
setting (
1000M/Full_M)
will allow the port to advertise capabilities
related to duplex, speed and physical layer type. The master
setting will also determine the
master and slave relationship between the two connected physical layers. This relationship is
necessary for establishing the timing control between the two physical layers. The timing control
is set on a master
physical layer by a local source. The slave
setting (
1000M/Full_S)
uses loop
timing, where the timing comes form a data stream received from the master. If one connection
is set for
1000M/Full_M
, the other side of the connection must be set for
1000M/Full_S
. Any
other configuration will result in a link down status for both ports.
Flow Control
Displays the flow control scheme used for the various port configurations. Ports configured for
full-duplex use 802.3x flow control, half-duplex ports use backpressure flow control, and
Auto
ports use an automatic selection of the two. The default is
Disabled
.
Learning
Enable or disable MAC address learning for the selected ports. When
Enabled
, destination and
source MAC addresses are automatically listed in the forwarding table. When learning is
Dis-
abled
, MAC addresses must be manually entered into the forwarding table. This is sometimes
done for security or efficiency. See the section on Forwarding/Filtering for information on
entering MAC addresses into the forwarding table. The default setting is
Enabled
.
Medium Type
This applies only to the Combo ports. If configuring the Combo ports this defines the type of
transport medium used. SFP ports should be set at
Fiber
and the Combo 1000BASE-T ports
should be set at
Copper
.
Click
Apply
to implement the new settings on the Switch.
Port Error Disabled
The following window will display the information about ports that have had their connection status disabled, for reasons such as
STP loopback detection or link down status. To view this window, click
Port Configuration > Port Error Disabled
.
Figure 6- 8. Port Error Disabled Table window
The following parameters are displayed:
Parameter Description
Port
Displays the port that has been error disabled.
State
Describes the current running state of the port, whether enabled or disabled.
Connection
This field will read the uplink status of the individual ports, whether enabled or disabled.
Reason
Describes the reason why the port has been error-disabled, such as a STP loopback
occurrence.
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