networks a network

Quocirca's Straight Talking: Secure remote access closes in

Comment Virtual private networks that use internet protocol security used to be seen as a nightmare. This distributed computing paradigm allows for a highly mobile workforce, which has created demand for technologies that enable workers to remotely access... [25 Jul 2008]

VLAN Security in the LAN and MAN Environment

White Paper Today VLANs are not only used as an integral part of the LAN environment, they are now also being used as a means of providing WAN (Wide Area Network) / MAN (Metropolitan Area Network) services. Since the creation of VLANs (Virtual Local Area... [25 Jul 2008]

Editor's Blog: Back to the future

Comment We have Joseph Bazalgette to thank for this sewer network consisting of the main brick sewers that run for nearly 100 miles and the network of a 1,000 miles of street sewers. I was down there to check out a broadband network that is being routed... [24 Jul 2008]

MySpace gets on board OpenID

News News Corp's MySpace social network will join the OpenID alliance to begin letting its users take their online identity to other sites and social networks without having to register again. Jim Benedetto, the network's senior vice president of... [23 Jul 2008]

RIM patches PDF security hole

News RIM has released a patch for a security flaw in BlackBerry Enterprise Server, which exposed corporate networks to hackers via a maliciously crafted PDF document. RIM announced the "highly critical" security advisory two weeks ago, detailing that a... [23 Jul 2008]

802.11 Mesh Networks With Two-Radio Access Points

White Paper A suitable distributed clustering is used to self-organize the network for channel allocation; all communications between nodes in the same cluster (intra-cluster) use the secondary radio and a common channel selected based on an algorithm that... [23 Jul 2008]

Photos: Waging war on the web's bad guys

Photo Symantec's security operations centre analyses more than one billion logs per day, as part of a global network monitoring attacks on computer networks for 650 customers. Symantec also has about two million active email accounts that its uses to... [21 Jul 2008]

A Framework for Network Media Optimization in Multihomed QoS Networks

White Paper In order to provide mobile hosts with such a function, the paper proposes an association layer, which is inserted between the transport and network layers. Future pervasive networks will be constructed by various access networks, which are managed... [18 Jul 2008]

A Network Management Architecture for Robust Packet Routing in Mesh Optical Access Networks

White Paper The architecture can be utilized with an arbitrary, link-redundant mesh network (node-redundancy is necessary only to handle all node failures), and assumes neither the use of a star topology nor the ability to embed such a topology within the... [18 Jul 2008]

On the Capacity of Optical Networks: A Framework for Comparing Different Transport Architectures

White Paper This comparison is based on a notion of network capacity as the set of exogenous traffic rates that can be stably supported by a network under its operational constraints. This paper compares three optical transport network architectures: Optical... [18 Jul 2008]

A Novel Method for QoS Provisioning With Protection in GMPLS Networks

White Paper In this paper, a new optimal policy is introduced to determine, adapt, and protect the Generalized MultiProtocol Label Switching (GMPLS) network topology based on the current traffic load. The Integrated Traffic Engineering (ITE) paradigm provides... [18 Jul 2008]

Utilizing Path Diversity in Optical Packet Switched Interconnection Networks

White Paper SPINet (Scalable Photonic Integrated Network) was recently introduced as an optical packet switched interconnection architecture for local area applications such as high-performance computing systems and storage-area networks. [18 Jul 2008]

The Problem of Upstream Traffic Synchronization in Passive Optical Networks

White Paper Recently Passive Optical networks gained a lot of attention as a possible solution to the broadband local access network. While it is a very cost-effective solution, it has some unique problems, not found in backbone or metropolitan networks. [18 Jul 2008]

An Architectural Model to Provide QoS in a Home Network and Its Evaluation in a Real Testbed

White Paper The design of a home network must strive to keep low costs, easy installation and maintenance while at the same time providing a large variety of services, from voice and data applications to multimedia streaming. [18 Jul 2008]

A Hybrid QoS Routing Strategy for Suburban Ad-Hoc Networks

White Paper The Suburban Ad-Hoc Network (SAHN) aims to provide suburban area connectivity for local area networks at broadband speed with a low initial cost and zero service charges using wireless technology. There exists various QoS routing solutions for... [18 Jul 2008]

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Graduate Systems Engineer

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Network Design Engineer: Cisco: SC / DV Cleared: Buckinghamshire

A leading defence organisation is now in the position to take on a Cisco network design engineer of CCIE / CCNP CCDP levels to work from their ...

CCIE/CCNP/CCIP/CCDP/CCSP/CCVP : Cisco Network Designer/Architect

A number 1 London based Cisco giant now seek a Cisco qualified Network Designer with out and out design experience. To apply, your two most recent ...


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