How to configure Port Mirroring

Latest reply: Aug 10, 2018 15:33:19 872 3 2 0

Description:
Port Mirroring means dupplicated the Inbound or Outbound Traffic of one or some ports to other or others ports.

Use:
Port Mirroring can be used to capture of packet for analyst of Traffic as Monitoring or Troubleshooting purposes.


Example:
  • The traffic from port G0/0/2 will be Mirrooring (Observed, Copy) to the port G0/0/1
  • Port G0/0/1 is a observed
  • Port G0/0/2 is a mirror

<HUAWEI> system-view
[HUAWEI] observe-port1 interface gigabitethernet 0/0/1    <- In this port is connected a Monitoring Device or some device with a Sniffer like WireShark to capture the packet for futher analyst

[HUAWEI] interface gigabitethernet 0/0/2                                 <- The Inbound traffic will be copy to the Observer 1 in this case G0/0/1
[HUAWEI-GigabitEthernet0/0/2] port-mirroring to observe-port 1 inbound


Conclusion:
In some cases it is critical to have the capture of packet do speed up the troubleshooting since in this way we can determinate what it is wrong in the communication between peers. The request is send it correctly? The replay is arriving ?. In this way we can see it.


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RubenMonroy
Created Aug 10, 2018 14:05:51 Helpful(0) Helpful(0)

Port mirroring is one of the best tools that we can use when traffic analysis is required. In this way we can see the behavior and the communication flow at both ends without actually interfering with the real scenario.
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Gabo
Created Aug 10, 2018 15:28:18 Helpful(0) Helpful(0)

Nice sharing, Actually I have problems with remote port mirroring. How to configure Port Mirroring-2720627-1
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#When you want to succed as much as you want to breathe, then you'll be successful.
xelamaster69
Created Aug 10, 2018 15:33:19 Helpful(0) Helpful(0)

Most of the time in a network topology, it is necessary to monitor packets. Port Mirroring helps a lot to monitor. Thanks How to configure Port Mirroring-2720629-1
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