A10E/A28E/A28F Configuration Guide
PC 1 fails to ping PC 3, so interface protection has taken effect.
2.6 Port mirroring
2.6.1 Introduction
Port mirroring refers to assigning some packets mirrored from the source interface to the
destination interface, such as from the monitor port without affecting the normal packet
forwarding. You can monitor sending and receiving status for packets on an interface through
this function and analyze the relevant network conditions.
Figure 2-9 Port mirroring principle
The basic principle of port mirroring is shown in Figure 2-9. PC 1 connects outside network
via the Port 1; PC 3 is the monitoring PC, connecting the external network through Port 4.
When monitoring packets from the PC 1, you needs to assign Port 1 to connect to PC1 as the
mirroring source port, enable port mirroring on the ingress port and assign Port 4 as monitor
port to mirror packets to destination port.
When service packets from PC 1 enter the switch, the switch will forward and copy them to
monitor port (Port 4). The monitoring device connected to mirror the monitoring interface can
receive and analyze these mirrored packets.
The A10E/A28E supports data stream mirroring on the ingress port and egress port. The
packets on ingress/egress mirroring port will be copied to the monitor port after the switch is
enabled with port mirroring. The monitor port and mirroring port cannot be the same one.
2.6.2 Preparing for configurations
Scenario
Port mirroring is mainly used to monitor network data type and flow regularly for the network
administrator.
To Next Page
Loading...