Ospf
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. MTRP: Multi-Topology Routing Protocol. / MTRP: Multi-Topology Routing Protocol.
Este trabalho tem como objetivo descrever as funcionalidades básicas de um protocolo de roteamento IP, para redes fixas, que utiliza técnicas de geração de multitopologias e pré-processamento de rotas para a recuperação de nós e enlaces falhos na escala de milisegundos. As principais características do protocolo foram incorporadas levando em conside
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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2. Estudo de caso impantação interior gateway protocol em redes wireless / Case study implementation interior gateway protocol in wireless networks
Este trabalho apresenta um estudo de caso com a proposta de implantação de um protocolo de roteamento dinâmico para gerenciar uma rede IP de um provedor de internet. Os objetivos propostos são de melhorar a disponibilidade geral dos serviços prestados para os usuários do provedor. Serão apresentados os principais aspectos e características dos protoc
Publicado em: 2009
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3. Engenharia de tráfego entre domínios de redes distintas
This work intends to perform end-to-end traffic engineering through simulations in broadband multiprotocol networks and evaluate used parameters. Weve proposed and tested parameters used by the network administrator to dimension the action of an algorithm for Traffic Engineering. We dedicated special attention to IP networks interconnected to MPLS networks.
Publicado em: 2007
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4. Architecture and implementation of a topological information and traffic engineering service to RWA systems / Arquitetura e implementação de um serviço de informações topologicas e de engenharia de trafego para sistemas RWA
GMPLS-controlled all-optical networks are the promise to handle the increasing volume of IP traffic. The GMPLS routing and signaling protocols, mainly OSPF and RSVP, work in such a way that the route calculation for optical circuits does not take into account the wavelength (label) availability. This is not optimal in terms of network resources usage and blo
Publicado em: 2006
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5. Uma estrategia de roteamento OSPF adaptativo baseado em estimação de banda / An adaptive OSPF routing strategy based on bandwidth estimation
Internet increase and diversity demand "smart" tools that could make possible to routing protocols self-adapt to network current state (its topology and congestion situation). Smart tools, although, can result in great processing and communication overload. This work presents, besides a new adaptive OSPF routing strategy based on bandwidth estimations, a sim
Publicado em: 2004
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6. Roteamento do trafego na Internet: algoritmos para projeto e operação de redes com protocolo OSPF
ormado.
Publicado em: 2003
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7. Outer surface proteins E and F of Borrelia burgdorferi, the agent of Lyme disease.
We report the cloning and characterization of two outer surface proteins (Osps), designated OspE and OspF, from strain N40 of Borrelia burgdorferi, the spirochetal agent of Lyme disease. The ospE and ospF genes are structurally arranged in tandem as one transcriptional unit under the control of a common promoter. The ospE gene, located at the 5' end of the o
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8. Partial destruction of Borrelia burgdorferi within ticks that engorged on OspE- or OspF-immunized mice.
We determined whether Borrelia burgdorferi outer surface proteins (Osps) E and F could elicit immune responses useful for a Lyme disease vaccine. Thirty days after challenge with B. burgdorferi, mice produced antibodies to OspE but not OspF, whereas antibodies to OspF were present in sera of mice obtained 90 days after infection. Examination of sera from pat
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9. Demonstration of the Genetic Stability and Temporal Expression of Select Members of the Lyme Disease Spirochete OspF Protein Family during Infection in Mice
Infection with Lyme disease spirochetes can be chronic. This suggests that the spirochetes are capable of immune evasion. In a previous study we demonstrated that the ospE gene family, which is one of three gene families whose members are flanked at their 5′ end by the highly conserved upstream homology box (UHB) element, undergoes mutation and rearrangeme
American Society for Microbiology.
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10. Serologic diagnosis of canine and equine borreliosis: use of recombinant antigens in enzyme-linked immunosorbent assays.
Serum samples from dogs and equids suspected of having canine or equine borreliosis, respectively, were analyzed in polyvalent enzyme-linked immunosorbent assays (ELISAs) with whole-cell or recombinant antigens of Borrelia burgdorferi sensu stricto. Purified preparations of recombinant antigens included outer surface protein A (OspA), OspB, OspC, OspE, OspF,
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11. Molecular and evolutionary analyses of a variable series of genes in Borrelia burgdorferi that are related to ospE and ospF, constitute a gene family, and share a common upstream homology box.
In this study we report on the molecular characterization of a series of genes that constitute a gene family related to ospE and ospF. Some members of this family appear to represent recombined or variant forms of ospE and ospF. Variant ospE and ospF genes were found in several Borrelia burgdorferi isolates, demonstrating that their occurrence is not a pheno
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12. Serologic Diagnosis of Lyme Borreliosis by Using Enzyme-Linked Immunosorbent Assays with Recombinant Antigens
Class-specific enzyme-linked immunosorbent assays (ELISAs) with purified recombinant antigens of Borrelia burgdorferi sensu stricto and Western blot analyses with whole cells of this spirochete were used to test human sera to determine which antigens were diagnostically important. In analyses for immunoglobulin M (IgM) antibodies, 14 (82%) of 17 serum sample
American Society for Microbiology.