127 loopback address question

Question

till which layer the loopback packet goes . i mean to ask that the lowest layer till which packet travel and then come back. I read that it goes to data link layer . but is the point to send it to data link layer as the address 127 is know at the network layer. at the same page i also read that it will return as the address 127 will be known . which is know at network layer . so i m confussed  till which point the packet will go .

Answer 1

DATA LINK LAYER

Comments

It Is comming back from data link layer then we say there is no fault in out NIC card or in our Layers

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@sh2mohit111 but NIC is at PL