The port-mirroring without-linklayer-header command configures a mirrored port to mirror packets from Layer 3 headers.
The undo port-mirroring without-linklayer-header command configures a mirrored port to mirror packets from Layer 2 headers.
By default, a mirrored port mirrors packets from Layer 2 headers.
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Usage Scenario
The command can also be used in SIG mirroring scenarios. When the port mirroring function is configured, the SIG imports traffic to the mirrored port and copies the traffic into multiple flows using the port mirroring function. The mirrored port is configured to mirror packets from Layer 2 or Layer 3 headers. After mirrored packets are sent to the observing port, the observing port removes Layer 2 headers of the original packets and encapsulates the specified destination MAC address into the packets for subsequent forwarding.
After this command is configured on the mirrored port, the port-observing observe-index without-filter command must be configured on the observing port.Prerequisites
The mirrored port has been configured so that the port-mirroring without-linklayer-header command can take effect.
Precautions
Do not configure an interface as both an observing port and a mirrored port.
When the port-mirroring without-linklayer-header command is configured on the mirrored port and the port-observing with-linker-header command is configured on the observing port, the port-mirroring without-linklayer-header command on the mirrored port takes effect. After this command is configured, the corresponding observing port does not support the port-observing pop-label command. This command is not supported in flow mirroring.