1.12 Given a set of requirements, implement a basic network - Paiet/Tech-Journal-for-Everything GitHub Wiki
1.12 Given a set of requirements, implement a basic network
- List of requirements
- What is required of the network you are about to build?
- What type of internet connection?
- How many and what kind of devices are getting attached?
- Budget limitations
- Bandwidth requirements
- Device types/requirements
- End user devices
- Desktops, laptops, tablets
- Peripherals like
- Network connectivity devices
- Routers, switches, hubs, wireless APs
- Network cabling
- MODEMs for ISP connection
- Environment limitations
- Certain environmental factors can affect your network design and implementation
- This is especially true with wireless
- Interference from EMI/RFI
- Rural SOHO might be limited in internet service choice, bandwidth, and line quality
- Equipment limitations
- Depending on how many devices are connected, a switch might be a better choice over a hub
- If the number of devices is > 1, then a switch should be used over a hub ;)
- Simple SOHO routers have no further expandability
- Can't further segment the network
- Simple SOHO switches might not have VLAN capabilities
- Even if it does, you would need a router that has the ability to route between them
- AP/Router/Switch device
- Increased capabilities = increased cost/administration
- Equipment placement
- Large devices and small devices
- Some logistic planning can be beneficial
- Where is all the network equipment going to reside?
- Where are the end user devices going to reside?
- If using wired network, will I need to drop cables behind a wall or under the floor
- Compatibility requirements
- You have to make sure that all your devices are compatible
- Network standards are supported
- Wired cabling specifications
- Wireless a/b/g/n/ac
- Wired/wireless considerations
- Both types of network implementations have their advantages and disadvantages
- Wired Network Attributes
- Installation of cables ranges from simple to very frustrating and time consuming
- Running cables through walls or under flooring
- Trip hazard and requires at least some cable cover/runner
- Bird's nest of wires at connection point
- Labeling cables helps organization/administration
- Speed
- Incredible bandwidth speeds available
- Gig speeds easily attained
- 100Mbps considered "slow" in the wired world
- Less congestion/contention when deployed with switches instead of hubs
- Reliable
- Very reliable connection media
- Low failure rates
- Loose connections being the most common form of cable "failure"
- Wireless Network Attributes
- Simple installation
- Wireless access point needs to be installed in a centralized location for best connection radius
- RFI/EMI mitigation
- Microwave ovens, cordless phones, etc.
- Each end user device will need to have wireless network adapter that is compatible with the type of wireless network used
- Speed
- Typically slower than wired connections
- Usually running around 54Mbps
- Newer specifications can run higher, but are not bottlenecked by older standards
- Distance impedes speed
- The farther away from the AP, the slower your transfer speeds will be
- Shared bandwidth
- More devices sharing the AP will slow down bandwidth
- Reliability
- Decent reliability
- Does have problems with outside interference
- RFI/EMI
- Reduce interference with proper planning
- Security considerations
- Protection against common types of attack, unauthorized access, and disruption
- Firewalls
- IDS/IPS
- Wireless encryption
- MAC filtering