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Networking Components. Raymond C. Banks LTEC 4550 October 12, 2013. Hub. Networking device that allows a single broadcast of data across all ports connected (All devices receive the same data of traffic) Can be used in multiple functions – office, home and gaming environment - PowerPoint PPT Presentation
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Networking ComponentsRaymond C. Banks
LTEC 4550October 12, 2013
Hub• Networking device that allows a single
broadcast of data across all ports connected (All devices receive the same data of traffic)
• Can be used in multiple functions – office, home and gaming environment
• Depending on class, relatively inexpensive - $20-150
Switch• Layer 2 (Data Link) device that connects
multiple devices to a single network. Unlike a hub, each device on the switched network receives data only intended for it by relay of unique identifiers, commonly known as a Media Access Control address
• Can be used in multiple functions – office, home and gaming environment
• Depending on class, pricing can vary from $50-$2000+
Router• Layer 3 (Network) device that routes data
(or packets) and serves as a multi-purpose switch, providing switch traffic to multiple networks (VLAN’s).
• Primarily used in large offices. • Depending on brand, pricing can vary
from $800-$4000+
Bridge• Layer 2 (Data Link) device that
determines what to do with packets.• Typically used to expand signal beyond
the traditional one-cable ethernet rule or beyond the limitations of a single node wireless router.
• Primarily used on a consumer level and in some small businesses.
• Depending on brand, pricing can vary from $40-$250
Gateway• Used to join devices on multiple
networks through hardware and/or software, this device operates at all levels of the OSI model.
• Known as the “edge” of a network, it is common to find firewalls on the edge to block certain traffic from entering.
• Can be used in multiple functions – large offices, small businesses and homes.
• Depending on class, pricing can vary from $50-$1,500.
Firewall• Operates on Layer 4 (Transport) and
Layer 7 (Application) used to filter traffic from the “edge” of a network.
• Common rule is to block all with exceptions.
• Can be used in multiple functions – large offices, small businesses and homes.
• Some firewalls are free (software)• Some firewalls costs (Depending on
brand, class, etc.) from $50-$2,000+
Wireless Access Point• Operates as Layer 1 (Physical) to provide
wireless signal • Operates at Layer 2 (Data Link) to link
wireless to wired network.• Can be used in multiple functions – large
offices, small businesses and homes.• Costs are relatively inexpensive ($50-
$200)
Diagram
Verizon FiOS RouterSwitchBridge
Cisco RV110W Wireless Firewall
WANVerizon FiOS
WANLevel 3 Communications
CampusFirewallCampus
Gateway