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HP J9979A User Manual

HP J9979A
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4-18
Switching Features
Loop Protection
Table 4-9. Loop Protection Configuration Global Fields
If you modify these settings, click Apply to update the switch configuration. Your changes take effect
immediately.
Configuring Loop Protection Settings on Interfaces
To configure loop protection settings on one or more interfaces, select the interfaces and click Edit. Or, select
Edit All to configure all interfaces.
Figure 4-12. Edit Loop Protection Port Configuration Page
Field Description
Loop Protection Select Enabled or Disabled to administratively enable or disable this feature globally on the
switch. This feature is disabled by default.
Transmission Time The interval at which the switch sends loop protection PDUs on interfaces that are enabled to
send them. The range is 1 to 10 seconds and the default is 5 seconds.
Shutdown Time The period that a port is shut down when a loop is detected. This setting applies only to ports
that are configured to be shut down upon the detection of a loop. The range is 0 to 604800 seconds
and the default is 180 seconds.

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HP J9979A Specifications

General IconGeneral
ModelJ9979A
CategorySwitch
LayerLayer 2
Jumbo Frame SupportYes
Input Voltage100 - 240 VAC
Uplink Ports4
ManagementWeb, SNMP
Dimensions44.25 x 30.0 x 4.4 cm
Weight4.4 kg
Power SupplyInternal
Form FactorRack-mountable
Operating Temperature0°C to 45°C
Operating Humidity15% to 95% (non-condensing)
Ports24 x 10/100/1000 ports

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