38 lines
1001 B
Markdown
38 lines
1001 B
Markdown
# Intranets
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Topics:
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Focusing on what hardware(things really) is used to setup networks in different places.
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## Bridges
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Used to divide a network thus giving us a form of encapsulation on our network and ergo allow us to delegate some responsibility outwards.
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## Ethernet networks
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> Hubs
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They basically just act as repeaters for Ethernet signals
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_With hubs we find that one message gets sent to everybody but only picked up and used by the intended receiver_
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# Switches
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Associates ports w/ mac address of whatever is plugged into that port.
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Reads the source/destination in the Ethernet frame header to create that association.
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This is much better because now the whole network doesn't get spammed like with hubs.
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Also the collision domain lies between the switch and the host connected now.
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# LAN Segment w/ Routers
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If we have two subnets next to each other: _routers_ allow comms between the two.
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# VLAN
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VLANs themselves are similar to subnets but really act as subnets for routers.
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