Hub-and-spoke Wide Area Network topology
Large Enterprises have multiple business offices (physical sites) in different geographical locations. Normally, Internet Service Providers (ISPs) provide network connectivity solutions to connect multiple physical sites in different geographical locations.
In a Hub-and-spoke Site-to-Site Wide Area Network (WAN) network topology, one physical site act as Hub (Example, Main Office), while other physical sites act as spokes. Spoke sites are connected to each other via Hub site. In Hub-and-spoke Wide Area Network (WAN) topology, the network communication between two spokes always travel through the hub.
Wide Area Network (WAN) links are costly and they always involve a monthly bill payment to Internet Service Providers (ISPs) for connectivity services.
Main disadvantage of Hub-and-spoke Wide Area Network (WAN) network topology is that it may cause communication time lags. Wide Area Network (WAN) network topology also has redundancy issues. If the Main Office network fails, entire Enterprise network communication may fail.
Other Site-to-site Wide Area Network (WAN) topologies are
• Partial-Mesh Topology
• Full Mesh Topology
Chapter 1 :- Introduction to Computer Networking
Chapter 2 :- What is a Computer Network
Chapter 3 :- Why we need computer networks
Chapter 4 :- Client Operating Systems
Chapter 5 :- Common Network Application Software
Chapter 6 :- LAN and WAN
Chapter 7 :- CAN and MAN
Chapter 8 :- Peer-to-Peer networks and Client-Server networks
Chapter 9 :- Centralized and Distributed Computer Networks
Chapter 10 :- Internetworks, Internet, Intranet and Extranet
Chapter 11 :- What is a Network Protocol
Chapter 12 :- Difference between Proprietary and Standard Protocols
Chapter 13 :- What are RFCs
Chapter 14 :- Organizations which control Internet
Chapter 15 :- Bus Topology
Chapter 16 :- Star Topology
Chapter 17 :- Mesh, Ring and Hybrid Topologies
Chapter 18 :- Network Infrastructure Devices and Icons
Chapter 19 :- Network Hub
Chapter 20 :- Network Bridge
Chapter 21 :- What is a Router
Chapter 21 :- What is a Firewall
Chapter 22 :- Office Networks
Chapter 23 :- Hub-and-spoke WAN topology
Chapter 24 :- Partial-Mesh WAN topology
Chapter 25 :- Full-mesh Site-to-site WAN topology
Chapter 26 :- What is NIC
Chapter 27 :- Common Network Cable types
Chapter 28 :- Difference between Baseband and Broadband
Chapter 29 :- CSMA/CD, CSMA/CA and Token Passing
Chapter 30 :- LAN Technologies Ethernet
Chapter 31 :- Ethernet Media Standards
Chapter 32 :- What is Token Ring
Chapter 33 :- What is FDDI
Chapter 34 :- IEEE 802 Standards
Networking Interview Questions :- 1
Networking Interview Questions :- 2
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