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@startuml Network Topology
skinparam rectangle {
  BackgroundColor WhiteSmoke
  BorderColor   Black
}

' --- Variant 1: two separate switches ---

package "Вариант 1 — Раздельные коммутаторы" {

  rectangle "SMG200"       as smg
  rectangle "Коммутатор\n(VLAN_local)"  as sw_local
  rectangle "Коммутатор\n(VLAN_global)" as sw_global
  rectangle "Локальная сеть" as lan
  rectangle "Провайдер"     as isp

  smg -[hidden]down- sw_local
  smg -[hidden]down- sw_global

  smg -->|tagged\nVLAN_local|  sw_local
  smg -->|tagged\nVLAN_global| sw_global

  sw_local  -->|access\nVLAN_local|  lan
  sw_global -->|access\nVLAN_global| isp
}

' --- Variant 2: single unified switch ---

package "Вариант 2 — Единый коммутатор" {

  rectangle "SMG200"       as smg2
  rectangle "Коммутатор"   as sw

  note bottom of sw
    access VLAN_local   → Локальная сеть
    access VLAN_global  → Провайдер
  end note

  rectangle "Локальная сеть" as lan2
  rectangle "Провайдер"     as isp2

  smg2 -[hidden]down- sw

  smg2 -->|tagged\nVLAN_local|  sw
  smg2 -->|tagged\nVLAN_global| sw

  sw -->|access\nVLAN_local|  lan2
  sw -->|access\nVLAN_global| isp2
}

@enduml