Allied Telesis AT-S68 - Manual (Page 43)

AT-S67 and AT-S68 User’s Guide
43
The Mirror Divider allows you to set the frequency at which to
mirror the frames. For example, setting the Mirror Divider to 10
will mirror the frames in either the receive or transmit direction
every 10 frames. Thus the mirrored frame rate will be 1 out of
every 10 frames of the source frame rate.
11. Type S to select Save Mirror Configuration.
The advanced mirroring feature has been configured.