How to configure Port Mirroring

Created Aug 10, 2018 21:52:30Latest reply Aug 10, 2018 23:33:19 523 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  Moderator   Created Aug 10, 2018 22:05:51 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  Moderator   Created Aug 10, 2018 23:28:18 Helpful(0) Helpful(0)

Nice sharing, Actually I have problems with remote port mirroring.
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#When you want to succed as much as you want to breathe, then you'll be successful.
xelamaster69  Novice   Created Aug 10, 2018 23:33:19 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
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