User’s Manual of GS-4210 Series
4.3.7 Port Error Disabled
This page provides disable that transitions a port into error disable and the recovery options.
The ports were disabled by some protocols such as BPDU Guard, Loopback and UDLD. The Port Error Disable screen in
Figure 4-3-15 appears.
Figure 4-3-15 Port Error Disable Page Screenshot
The displayed counters are:
Object Description
Port Name
Display the port for error disable
Error Disable Reason
Display the error disabled reason of the port
Time Left (Seconds)
Display the time left
4.3.8 Protected Ports
Overview
When a switch port is configured to be a member of protected group (also called Private VLAN), communication between
protected ports within that group can be prevented. Two application examples are provided in this section:
Customers connected to an ISP can be members of the protected group, but they are not allowed to communicate with
each other within that VLAN.
Servers in a farm of web servers in a Demilitarized Zone (DMZ) are allowed to communicate with the outside world and
with database servers on the inside segment, but are not allowed to communicate with each other
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