■Router
NEC IX2215(main)
NEC IP38X/1200(cold backup)
NEC IX2005
YAMAHA RT107e
YAMAHA RTX1200(Malfunction…)

■L3SW / HUB
Allied-Telesis CenterCOM AT-x510-28GPX
NEC QX-S624

■SFP+ Module
fs.com 10GBASE-SR(x6)
fs.com 10GBASE-T(x1)

■Wireless LAN
ASUS RT-AX86U
NEC WG2600HP(use ac only)

■Printer
RICOH IPSiO SP C320 (PostScript3 Add-on Card)

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■2022/1/15 (Router)
NEC IP38X/1200(main to backup)

■2022/1/3 (Wireless LAN AP)
ASUS RT-AX86U(main/add)