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Networking Intermediate

What is Traceroute?

A network diagnostic tool that shows the path packets take from source to destination, listing each hop along the way.

Traceroute (tracert on Windows) discovers the route packets take through the network. It sends packets with incrementing TTL values, causing each router along the path to respond. This reveals the path, hop count, and latency at each point.

Traceroute helps diagnose routing problems, identify bottlenecks, and understand network topology. High latency at a specific hop indicates congestion or distance. Asterisks (*) indicate filtered/dropped probes.

Related Terms

Network Bridge
A device or software that connects two or more network segments at the data link layer, forwarding traffic based on MAC addresses.
ICMP (Internet Control Message Protocol)
A network protocol used for diagnostic and error reporting, including ping and traceroute functionality.
DHCP
A protocol that automatically assigns IP addresses and network configuration to devices on a network.
QoS (Quality of Service)
A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.
OSI Model
The seven-layer Open Systems Interconnection model that standardizes network communication functions from physical transmission to application protocols.
Network ACL
A set of rules that control inbound and outbound traffic at the subnet level, acting as a stateless firewall in cloud and enterprise networks.
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