How to configure port mirroring on S series switches after they set up a stack or CSS

If multiple S series switches (except S1700 switches) set up a stack or cluster, mirroring is configured in the same way as that before the stack or CSS is set up. Take a cluster of modular switches as an example. To copy packets on mirrored port GE1/1/0/1 to observing port GE2/2/0/0, configuring port mirroring as follows:
1. Configure GE2/2/0/0 as an observing port.
[Switch] observe-port 1 interface gigabitethernet 2/2/0/0
2. Copy the packets received and sent by mirrored port GE1/1/0/1 to the observing port.
[Switch] interface gigabitethernet 1/1/0/1
[Switch-GigabitEthernet1/1/0/1] port-mirroring to observe-port 1 both
[Switch-GigabitEthernet1/1/0/1] quit

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