Performance Improvement Schemes for Network Devices in Local Area Networks via Packet Rewriting
Date Issued
2012
Date
2012
Author(s)
Chiu, Chien-Hua
Abstract
Packet rewriting is a useful skill for creating virtual segments in the networks. In this dissertation, we propose several schemes based on packet rewriting in the field of parallel processing and the broadcast traffic reduction in large scale Ethernet. First, we propose a decentralized clustering scheme for network devices which operate in transparent mode. Devices in the cluster process the network traffic in parallel in a decentralized manner to scale the throughput. A device can also migrate its workload to others for the purpose of load balance or fault tolerance. The proposed clustering scheme is successfully applied to applications such as bandwidth controller and network intrusion prevention systems. Second, we propose a new device, EtherAgent, to reduce the broadcast traffic in the Ethernet. An EtherAgent is backward compatible so that it can be inserted into an existing Ethernet without any change on protocols, hardware, and software modifications. According to performance evaluation, the proposed schemes based on packet rewriting can be effectively used for building clusters of network devices such as bandwidth controller and network intrusion prevention systems. Moreover, the proposed network device, EtherAgent, can also significantly reduce broadcast traffic in large scale Ethernet.
Subjects
Decentralized clustering scheme
parallel processing
Ethernet
load balance
fault tolerance
large scale network
enterprise network
Type
thesis
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