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Ques : What is Time To Live (TTL) ?

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 Under some circumstances many of the times packets got stuck in loops in the network and consumes the bandwidth of the network unnecessarily. The size of this field is 8 bit. This field restricts packets to enter to live infinitely long time in the Internet. This value is in seconds, but time intervals less than 1 second are rounded up to 1. The value of this field is set to a number (known as maximum hop count limit). When the packet arrives at a router, the TTL field value is decrement by one. The packet is dropped by the router if it encounters TTL field value to be 0 (zero).

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