Prerequisite – Token Ring frame format, Efficiency Of Token Ring, Problems with Token Ring
As we have already familiar with the Token Ring. Now, in this article, we are going to discuss What should be the minimum length of the Token Ring.
In the worst case, it may be possible that all the system will Shud Down and the only monitor will remain active. Therefore the Token Ring should be able to hold one Token completely to avoid the collision.
We know that the Size of Token = 24 bits.
Hence, the minimum length of the Token Ring = Length of wire that can hold 24 bits
Let’s see how to calculate the length of wire that can hold 24 bits:
Capacity of wire = Propagation Delay * Bandwidth Capacity >= 24 Propagation Delay * Bandwidth >= 24 Propagation Delay = Length of wire / velocity (length of wire/velocity) * Bandwidth >= 24 Length of wire >= ( 24 * velocity ) / Bandwidth
Hence, size of the ring must be greater than (24 * velocity) / Bandwidth.
Bandwidth = 4 Mbps, Velocity = 2 * 108
What should be the minimum length of the Ring?
length >= ( 24 * velocity ) / Bandwidth length >= (24 * 2 * 10^8) / (4 * 10^6) length >= 1200 meter
In case, if we don’t have this much amount of wire, then we can use Delay device.
Let’s assume for the given example we have only 1000 meter of wire then Delay will be equal to 200 meter. To convert the meter into bits:
Meter --/velocity--> Second --*Bandwidth--> bit
So, the bit delay we require for 200 meter is
= (200/(2 * 108)) * (4 * 106) = 4 bit time
Hence, a Delay device of 4 bit is required for working the ring without collision, in 1000 meter of wire where 1200 meter is required.
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- Difference between Token Bus and Token Ring Network
- Efficiency Of Token Ring
- Token Ring frame format
- Problems with Token Ring
- Difference between Token ring and Ethernet
- Difference between Straight Ring Counter and Twisted Ring Counter
- Token Bus (IEEE 802.4)
- Difference between Early and Delayed Token Release
- Difference between Star and Ring Topology
- Difference between Ring Topology and Mesh Topology
- Mod 2 Ring Counter (with D flip-flop)
- Difference between Ring Topology and Bus Topology in Computer Networks
- Difference between Ring Topology and Tree Topology
- Advantages and Disadvantages of ring topology
- Ring Counter in Digital Logic
- Fixed Length and Variable Length Subnet Mask Numericals
- Construct Pushdown Automata for all length palindrome
- Graph measurements: length, distance, diameter, eccentricity, radius, center
- Introduction of Variable Length Subnet Mask (VLSM)
- Problem Solving for Minimum Spanning Trees (Kruskal’s and Prim’s)
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