How Does Ttl Work In Networking?
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TTL stands for Time To Live and is a field in the header of an IP packet. It is used to indicate how long the packet is allowed to stay in the network. When a packet is sent, it is given a TTL value, usually in seconds. Each time a router or device receives the packet, it subtracts 1 from the TTL value. When the TTL reaches 0, the packet is discarded and an error message is sent back to the sender. This helps to prevent packets from endlessly circulating on the network and causing congestion.
TTL, or Time to Live, is a value set in network protocol packets that determines how long a packet remains active in the network before it is discarded. It is usually measured in “hops“ or “jumps“, each hop reducing the TTL value by one. When the TTL reaches zero, the packet is dropped or discarded and must be resent. This helps keep an orderly flow of data over networks, preventing excess data from clogging the network. It also helps to protect against malicious attacks and rogue packets.