Configuring Port Mirroring

In port mirroring, packets passing through mirrored ports are copied and then sent to specified observing ports for analysis and monitoring. Port mirroring is classified into local port mirroring and Layer 2 remote port mirroring based on observing ports.

The following example configures local port mirroring.

You can copy packets on a mirrored port to an observing port.

For example, copy incoming packets (received packets) on mirrored port GE0/0/2 to observing port GE0/0/1.

GE0/0/1 is directly connected to a monitoring device.

<HUAWEI> system-view
[HUAWEI] observe-port 1 interface gigabitethernet 0/0/1     <- Este es el MONITOR en base al Observe 1

[HUAWEI] interface gigabitethernet 0/0/2                                 <- ESTE SERA MONITOREADO
[HUAWEI-GigabitEthernet0/0/2] port-mirroring to observe-port 1 inbound

You can copy packets on one mirrored port to N observing ports.

For example, copy incoming packets (received packets) on mirrored port GE2/0/1 to observing ports GE1/0/1 through GE1/0/3. These observing ports are directly connected to monitoring devices.

• Configure observing ports one by one.
  <HUAWEI> system-view
  [HUAWEI] observe-port 1 interface gigabitethernet 1/0/1
  [HUAWEI] observe-port 2 interface gigabitethernet 1/0/2
  [HUAWEI] observe-port 3 interface gigabitethernet 1/0/3

• [HUAWEI] interface gigabitethernet 2/0/1
  [HUAWEI-GigabitEthernet2/0/1] port-mirroring to observe-port 1 inbound
  [HUAWEI-GigabitEthernet2/0/1] port-mirroring to observe-port 2 inbound
  [HUAWEI-GigabitEthernet2/0/1] port-mirroring to observe-port 3 inbound

• Configure observing ports in a batch (only in V200R005 and later versions).
  <HUAWEI> system-view
  [HUAWEI] observe-port 1 interface-range gigabitethernet 1/0/1 to gigabitEthernet 1/0/3
  [HUAWEI] interface gigabitethernet 2/0/1
  [HUAWEI-GigabitEthernet2/0/1] port-mirroring to observe-port 1 inbound