Computer Network Switches
By Stephen Bucaro
A bridge or router may be referred to as a "switch" because it uses information in the
data packet to choose a path from one network segment to another. A bridge may be referred to
as a "layer 2 switch" because it uses information from layer 2, the Data Link layer of
the OSI model. A router may be referred to as a "layer 3 switch" because it uses information
from layer 3, the Network layer of the OSI model. A network device that uses a higher layer of
the OSI model may be referred to as a "layer 4 switch", and so on.
More Networking Protocols and Standards:
• An Introduction to the Types of VPNs
• A Simple Description of the IPv6 Header and Datagram
• Network Switches
• The OSI Presentation Layer
• The OSI Physical Layer
• Remote Control Protocols
• IP version 6 (IPv6) Advantages and Implementation
• TCP Windowing
• What's the Difference Between a Packet and a Frame?
• What Are Private IP Addresses?
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