On the second switch, port mirroring is enabled to mirror to port 16. Source is port 15, which doesn't have anything plugged into it. This has the effect of having all of the switch ports on the secondary switch be mirrored onto the link to the main router, which then gives the SEQ box on the main router access to any EQ session.Code:< Main Router > <-- Port 16 on Secondary Switch --> <-- Secondary Switch --> < Main Router > <-- Port 4 on Main Switch --> < SEQ box > < Secondary Switch > <------> < EQ1 > < Secondary Switch > <------> < EQ2 > < Secondary Switch > <------> < EQ3 >