Example for Configuring Local 1:N Port Mirroring (Observing Ports Are Configured in a Group)

Networking Requirements

In Figure 1, the R&D department of a company accesses the Internet through the switch, and monitoring devices Server1, Server2, and Server3 are directly connected to the Switch.

Internet-bound traffic from the R&D department needs to be copied and sent to different servers for different monitoring and analysis purposes.

Figure 1 Local 1:N port mirroring networking

Configuration Roadmap

The configuration roadmap is as follows:

Configure GE0/0/2 through GE0/0/4 of the Switch as local observing ports to forward mirrored packets to different servers.
Configure GE0/0/1 of the Switch as a mirrored port to copy the traffic passing through it and send the traffic to different local observing ports.

Procedure

Configure observing ports.
# Configure GE0/0/2 through GE0/0/4 of the Switch as local observing ports in a local observing port group.
```
<HUAWEI> system-view
[HUAWEI] sysname Switch
[Switch] observe-port 1 interface-range gigabitethernet 0/0/2 to gigabitethernet 0/0/4
```
# Disable the observing port from forwarding data packets.
```
[Switch] observe-port 1 forwarding disable
```
Configure a mirrored port.
# Configure GE0/0/1 of the Switch as a mirrored port to copy the packets received by the mirrored port and send them to local observing ports.
```
[Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] port-mirroring to observe-port 1 inbound
[Switch-GigabitEthernet0/0/1] return
```

Verify the configuration.

# Check the observing port configuration.

<Switch> display observe-port
  ----------------------------------------------------------------------
  Index          : 1
  Untag-packet   : No
  Forwarding     : No
  Interface-range: GigabitEthernet0/0/2 to GigabitEthernet0/0/4
  ----------------------------------------------------------------------

# Check the mirrored port configuration.

<Switch> display port-mirroring
  ----------------------------------------------------------------------
  Observe-port 1 : GigabitEthernet0/0/2 to GigabitEthernet0/0/4
  ----------------------------------------------------------------------
  Port-mirror:
  ----------------------------------------------------------------------
       Mirror-port               Direction  Observe-port
  ----------------------------------------------------------------------
  1    GigabitEthernet0/0/1      Inbound    Observe-port 1
  ----------------------------------------------------------------------