Managing Physical Interfaces Physical Interface
Configuration Guide
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Physical Interface
1.1 Overview
Interfaces of a device are used to exchange data and interact with other network devices.
Interfaces are classified into physical interfaces and logical interfaces.
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Physical interfaces are the ports on the front panel or rear panel of the switch.
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Logical interfaces are manually configured and do not physically exist, such as
loopback interfaces and routing interfaces.
This chapter introduces the configurations for physical interfaces.
1.2 Supported Features
The switch supports the following features about physical interfaces:
Basic Parameters
You can configure port status, speed mode, duplex mode, flow control and other basic
parameters for ports.
Port Mirror
This function allows the switch to forward packet copies of the monitored ports to a
specific monitoring port. Then you can analyze the copied packets to monitor network
traffic and troubleshoot network problems.
Port Security
You can use this feature to limit the number of MAC addresses that can be learned on each
port, thus preventing the MAC address table from being exhausted by the attack packets.
Port Isolation
You can use this feature to restrict a specific port to send packets to only the ports in the
forward-port list that you configure.
Loopback Detection
This function allows the switch to detect loops in the network. When a loop is detected on a
port, the switch will send a trap message, generate an entry on the log file and further block
the corresponding port according to your configurations.
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