Logical Topology

network logical topology image

Logical Network Topology of Headquarter and Branch

🔴 Headquarter

Core Layer

  • 2 Core routers connect to the internet and network between branch via WAN provided by 2 internet service providers.
  • 2 Firewalls connect to the 2 core routers and serve as a bridge between the core and distribution layers. The firewalls also configure IPSec VPN to support employees who work remotely.

Distribution Layer

  • 2 Distribution switches to perform redundancy; if any one breaks, can use another route. This layer connects to the core layer and distributes the network to the access layer.

Access Layer

  • Access switches for each department to connect to access points to broadcast wireless signals and supports LAN for various employee devices such as computers, printers.
  • Each access switch is connected to 2 distribution switches for redundancy.

VLAN

VLAN NumberVLAN NameSubnetMax Devices
10Management192.168.10.0/24254
20Human Resource192.168.20.0/24254
30Marketing192.168.30.0/24254
40Finance192.168.40.0/24254
50Co-working space192.168.50.0/24254
60Guest192.168.60.0/24254
100IT Department192.168.100.0/24254
101Server192.168.101.0/24254
102Network Management192.168.102.0/24254

🔵 Branch

Core Layer

  • The core router connects to the Internet and the headquarter through an Internet service provider. And the firewall is connected to the distribution layer.

Distribution Layer

  • 2 Distribution switches connect from the core layer to the access layer.

Access Layer

  • Access switches for each department to connect to access points to broadcast wireless signals and supports LAN for various employee devices.
  • Each access switch is connected to 2 distribution switches for redundancy.

VLAN

VLAN NumberVLAN NameSubnetMax Devices
30Marketing192.168.30.0/24254
50Co-working space192.168.50.0/24254
60Guest192.168.60.0/24254
100IT Department192.168.100.0/24254