H3C Technologies H3C S3600 Series Switches - Manual (Page 783)

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z With port mirroring – STP collaboration enabled, if you configure a port in Discarding state as a
mirroring port, the port mirroring configuration does not take effect until the port transits to
Forwarding state.
z Suppose port mirroring – STP collaboration is enabled on a device in an MSTP network. To make
the port mirroring configuration take effect on a port, make sure that the port is in Forwarding state
in all instances.
z To enable port mirroring on an IRF stack, you are recommended to enable port mirroring – STP
collaboration.
Configuration on a switch acting as an intermediate switch
1) Configuration prerequisites
z The trunk ports and the remote-probe VLAN are determined.
z Layer 2 connectivity is ensured between the source and destination switches over the
remote-probe VLAN.
2) Configuration procedure
Follow these steps to perform configurations on the intermediate switch:
To do… Use the command… Remarks
Enter system view system-view —
Create a VLAN and enter VLAN
view
vlan vlan-id
vlan-id is the ID of the
remote-probe VLAN.
Configure the current VLAN as
the remote-probe VLAN
remote-probe vlan enable Required
Return to system view quit —
Enter the view of the Ethernet
port connecting to the source
switch, destination switch or
other intermediate switch
interface interface-type
interface-number
—
Configure the current port as
trunk port
port link-type trunk
Required
By default, the port type is
Access.
Configure the trunk port to
permit packets from the
remote-probe VLAN
port trunk permit vlan
remote-probe-vlan-id
Required
Note that an S3600 series Ethernet switch acting as the intermediate switch in remote port mirroring
networking does not support bidirectional packet mirroring (the both keyword).
Configuration on a switch acting as a destination switch
1) Configuration prerequisites
z The destination port and the remote-probe VLAN are determined.
z Layer 2 connectivity is ensured between the source and destination switches over the
remote-probe VLAN.