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Switches receive a frame from the source device and quickly forward it toward the destination device.
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On Ethernet networks, frames contain a source MAC address and a destination MAC address. Learning how switches operate is important to someone entering the networking profession. If the IP address is not resolved, the path is not identified, and an error message appears.One of the most exciting functions of networking is the switched environment because businesses are always adding devices to the wired network, and they will do so through a switch. The IP addresses must be in the same subnet.
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Routers decrement this parameter and discard a packet when the TTL value has reached zero, returning an ICMP error message (ICMP Time Exceeded) to the sender. Tracing the intermediate routers traversed involves control of the time-to-live (TTL) Internet Protocol parameter. Traceroute sends a sequence of Internet Control Message Protocol (ICMP) packets addressed to a destination host. Traceroute is a tool for measuring the route path and transit times of packets across an Internet Protocol (IP) network.