Abstract
Ethernet network, standardized by IEEE 802.3, is vastly installed in Local Area Network (LAN) for cheaper cost and reliability. With the emergence of cost effective and enhanced user experience needs, the Quality of Service (QoS) of the underlying Ethernet network has become a major issue. A network must provide predictable, reliable and guaranteed services. The required QoS on the network is achieved through managing the end-to-end delay, throughput, jitter, transmission rate and many other network performance parameters. The paper investigates QoS parameters based on packet size to analyze the network performance. Segmentation in packet size larger than 1500 bytes, Maximum Transmission Unit (MTU) of Ethernet, is used to divide the large data into small packets. A simulation process under Riverbed modeler 17.5 initiates several scenarios of the Ethernet network to depict the QoS metrics in the Ethernet topology. For analyzing the result from the simulation process, varying sized packets are considered. Hence, the network performance results in distinct throughput, end-to-end delay, packet loss ratio, bit error rate etc. for varying packet sizes.
Highlights
Ethernet network is covered under IEEE 803.2 working group referring to the Local Area Network (LAN) family of network protocols
This study evaluates the Quality of Service (QoS) of an Ethernet network simulated on Riverbed modeler that depicts the impacts of varying packet size in the network QoS and performance parameters based on the previous research findings
The simulation presents a set of observations regarding impact of different packet sizes on the QoS in Ethernet local area network
Summary
Ethernet network is covered under IEEE 803.2 working group referring to the LAN family of network protocols. Ethernet supports longer transmission distance up to 150 km which indicates the mass installation in an optical fiber network in most LAN environments. Ethernet network uses both packet and frame for the transmission using the physical and data link layer at the same time [3]. Packet size impacts on the queuing in the switch and router’s buffer during the transmission process among the Ethernet stations This varies the packet arrival and departure rate the packet processing rate [7]. Larger, packet size leads to network congestion while smaller one is capable to lower the packet arrival and departure delay and decrease the bit error rate [8]. This study represents the analysis on QoS and network performance while segmentation of such larger packets in the Ethernet network is simulated
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