0 votes 0 votes why routers have two physical and data layers but only one network layer? punit dubey asked Jun 14, 2018 punit dubey 299 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes BECAUSE EACH LOWER LEVEL LAYER ENCAPSULATE HIGHER LEVEL LAYER. SO PHYSICAL LAYER ENCAPSULATE DATA LINK LAYER AND DATA LINK LAYER ENCAPSULATE NETWORK LAYER . AND ROUTER HAS TO VISIT PHYSICAL AND DATA LINK LAYER TO REACH NETWORK LAYER. sunnykg answered Aug 16, 2018 sunnykg comment Share Follow See all 0 reply Please log in or register to add a comment.