20-06-2015 Comnet III V.2 UALG 1 Comnet III V.2 Amine Berqia [email protected].
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Transcript of 20-06-2015 Comnet III V.2 UALG 1 Comnet III V.2 Amine Berqia [email protected].
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Comnet III V.2Comnet III V.2
Amine BerqiaAmine Berqia
[email protected]@ualg.pt
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Comnet IIIComnet III Uma ferramenta da simulação das Uma ferramenta da simulação das
redes redes Analise e prediga o desempenho Analise e prediga o desempenho
das redes das redes Suporte muitos tipos das redes : Suporte muitos tipos das redes :
ALOHA, CSMA/CD, FDDI, etc. ALOHA, CSMA/CD, FDDI, etc. interfaceinterface gráfica gráfica
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OOs Modelos Modelos (1)s (1) Topologia Topologia
– Nós, ligações, subnets, nuvens WAN, Nós, ligações, subnets, nuvens WAN, redes do trânsitoredes do trânsito
Tráfego Tráfego – Scheduling, Application, Traffic Source, Scheduling, Application, Traffic Source,
Call Source and External SourceCall Source and External Source Routing AlgorithmsRouting Algorithms e e Transport Transport
ProtocolsProtocols
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Os Modelos (2)Os Modelos (2) Os modelos são fecheiros do tipo Os modelos são fecheiros do tipo
name.c3 name.c3 Um Um subdirectorysubdirectory do mesmo nome do mesmo nome
será criado automaticamente será criado automaticamente para relatórios, para relatórios, trace filestrace files, etc.. , etc..
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ExemploExemplo
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Topologia (1)Topologia (1) Quatro tipos de nós Quatro tipos de nós
– Computer and Communication NodeComputer and Communication Node(( C&C nodeC&C node ))
– Computer Group NodeComputer Group Node– Router NodeRouter Node– ATM NodeATM Node
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Topologia (2)Topologia (2)– Os nós de C&C e os nós do grupo do Os nós de C&C e os nós do grupo do
computadores podem gerar ou receber o computadores podem gerar ou receber o tráfego tráfego
– Os nós de C&C podem também modelar a Os nós de C&C podem também modelar a bridgebridge e a e a gatewaygateway
– Os nós do grupo do computadores são Os nós do grupo do computadores são restringidos a modelar sistemas de restringidos a modelar sistemas de extremidade extremidade
– O O routerrouter e os nós ATM são usados apenas e os nós ATM são usados apenas para para routingrouting
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Topologia (3)Topologia (3) LinksLinks
– Point-to-point linksPoint-to-point links– CSMA/CDCSMA/CD– ALOHAALOHA– Token PassingToken Passing (( token ring, FDDI, token ring, FDDI,
token bustoken bus ))– PollingPolling
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Tráfego da Rede Tráfego da Rede Application sourcesApplication sources Message sourcesMessage sources Response sourcesResponse sources Session sourcesSession sources
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Etapas da Etapas da simulaçãosimulação Construa uma topologia da rede Construa uma topologia da rede Adicione a fonte para o tráfego e o Adicione a fonte para o tráfego e o
workload para sua topologia da rede workload para sua topologia da rede Ajuste parâmetros da simulação Ajuste parâmetros da simulação Escolha relatórios que você deseja Escolha relatórios que você deseja Comece a simulação Comece a simulação Veja relatórios Veja relatórios
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Referências Referências w3.ualg.pt/~baminew3.ualg.pt/~bamine http://http://www.caci.comwww.caci.com// http://http://www.compuware.comwww.compuware.com
/products/vantage/predictor//products/vantage/predictor/