Consider the token ring network in Figure below. Token is circulating between st
ID: 3844201 • Letter: C
Question
Consider the token ring network in Figure below. Token is circulating between stations in the following sequence: A->B->C->D->E->F->A. Single token operation is implemented and 8 priority levels supported, with level 0 the highest priority while level 7 is the lowest. The following data frames will be delivered by this network: Frame 1 from Node B, at priority level 4; Frame 2, from Node C, at priority level 2; Frame 3, from Node D, at priority level 1; Frame 4, from node F, at priority level 4. At the beginning, a free token with priority level 3 and reservation level 7 is released by node A. What is the sequence these four frames will be delivered? Justify your answer.
Explanation / Answer
based on priority level the frames were deliverd.
The frame 3 from node D having the high priority so it first delivers the frame 3
The node C delivers the frame 2 with priority of 2
node A free token with priority of 3
from B frame 1 delivered with priority 4
and finally frame is released from A with priority 7
sequence of delivery of frames:
3->2->1->2