CN

• CN=Core Network=核心网
  • 按照空间范围，网络可以分为
    • 图
      • 
    • 文字
      • Nanoscale
      • Near-field (NFC)
      • Body (BAN)
      • Personal (PAN)
      • Near-me (NAN)
      • Local (LAN)
        • Home (HAN)
        • Storage (SAN)
        • Wireless (WLAN)
      • Campus (CAN)
      • Backbone(=Core Network=CN)
      • Metropolitan (MAN)
      • Municipal wireless (MWN)
      • Wide (WAN)
      • Cloud (IAN)
      • Internet
      • Interplanetary Internet