Example for Configuring Local 1:1 Port Mirroring

Networking Requirements

In Figure 1, the administrative department of a company communicates with the Internet through the switch, and the server (monitoring device) is directly connected to the switch.

The server is required to monitor Internet-bound traffic from the administrative department.

Figure 1 Networking of local 1:1 port mirroring

Configuration Roadmap

The configuration roadmap is as follows:

Configure GE0/0/2 as the local observing port to forward mirrored packets to the server.
Configure GE0/0/1 as the mirrored port to copy Internet-bound traffic from the administrative department and send the traffic to the local observing port.

Procedure

Configure an observing port.

# Configure GE0/0/2 of the switch as a local observing port.

<HUAWEI> system-view
[HUAWEI] sysname Switch
[Switch] observe-port 1 interface gigabitethernet 0/0/2

# Disable the observing port from forwarding data packets.

[Switch] observe-port 1 forwarding disable

Configure a mirrored port.

# Configure GE0/0/1 on the switch as the mirrored port and configure GE0/0/1 to copy received packets to the local observing port.

[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.

# Verify the configuration of the observing port.

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

# Verify the configuration of the mirrored port.

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