Someone tries to connect two routers A and B together as part of a network. Rout

Question

Someone tries to connect two routers A and B together as part of a network. Router A run protocol N for the network layer, and DL1 for the data link layer. Router B runs protocol N and a different data link layer protocol DL2. Explain whether routers A and B can successfully communicate. Now suppose both A and B use DL1, which is a sliding window protocol with selective repeat. Window size in A is set to x, and window size in B set to y. Explain whether Router A and B can work together, and if not, how you can get them to communicate to each other.

Explanation / Answer

Hi

As we are aware that Router works on Network layer of OSI layer. Network layer deals with packets.Router being L3 devices concerned about the routing protocol that is responsible for packet delivery from one L3 to destination L3.

So it is obvious that Router A & Router B can communicate.The routing protocol should be same in this case.

B:

The Selective Repeat Protocol uses two windows: a send window and a receive window. The Selective Repeat Protocol allows as many frames as the size of the receive window to arrive out of order and be kept until there is a set of in-order frames to be delivered to the network layer. Because the sizes of the send window and receive window are the same, all the frames in the send frame can arrive out of order and be stored until they can be delivered.

Thanks

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.