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Network FAQ - Frequently Asked Questions...
What is WAN ?
What is LAN ?
What Does a router do ?
How is a gateway better ?
How does mesh work ?
Why use a managed switch ?
What is an IOT device ?
What is failover ?
What is POE ?
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WAN |
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- WAN is short for Wide Area Network
- Your router or gateway divides the network into a public side and a private side.
- The WAN is the public side.
- Because it is public, it is unsecure and unsafe.
- We use a firewall to make the network safe.
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LAN |
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- LAN is short for Local Area Network
- Your router or gateway divides the network into a public side and a private side.
- The LAN is the private side.
- This is the network inside your house.
- It includes your switch, wiring, ap, cameras, etc.
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Router |
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- Your router or gateway divides the network into a public side and a private side.
- It also can assign network addresses.
- It includes a firewall to make the network safe.
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Gateway |
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- For most home networks, the term gateway and router are the same.
- But for my discussions, I use gateway to distinguish a separate
- device, of enterprise grade, used for the firewall and advanced routing features.
- It also includes multiple WAN ports to allow for failover or load balancing.
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Mesh |
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- A mesh network uses addition AP to wirelessly
- extend the wifi network.
- These can be a quick option but performance is usually disappointing
- Becuase they use wifi to extend wifi, the traffic is increased.
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Managed Switch |
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- A switch allows data to travel to its destination in the best way possible.
- A managed switch gives increased control over how the traffic moves.
- These devices can support VLANs (virtual LANs).
- which are important to seggregate your IoT devices from your main network.
- We do this because IoT devices can be hacked.
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IoT Devices |
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- IoT devices are basically smart devices which have support for
- internet connectivity and are able to interact with the other
- devices and be managed by a user over the internet.
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- Today we have growing numbers of "Smart" devices.
- They range from smart refrigerators, watches and door locks
- to speakers, controllers, switches and door bells.
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- And many more are coming.
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Failover and Load Balancing |
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- Failover is a technique to prevent being disconnected from the internet.
- Using a gateway, a second source internet is pre-connected and ready.
- The second service should be different, such as a Cellular LTE modem.
This is because providers often share cables or pathways in neighborhoods.
If construction cuts a cable or a vehicle knocks over a pole,
multiple companies that provide service can be affected.
Using Cellular helps prevent interuptions when it is critical.
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- Load Balancing uses multiple WAN connections to share traffic load.
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POE |
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- POE means Power Over Ethernet
- This allows us to mount AP and cameras without extra power connections.
- We only need to route the ethernet lines.
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