IP is a network layer protocol in the internet protocol suite and is encapsulated in a data link layer protocol (e.g., Ethernet). As a lower layer protocol, IP provides the service of communicable unique global addressing amongst computers. This implies that the data link layer need not provide this service.
Interconnecting three or more sites across a metro or wide area network has traditionally been accomplished via a hub and spoke network topology using Private Lines, Frame Relay or IP VPNs over the Internet. Ethernet services support hub and spoke topologies but also support an “any-to-any” network topology similar to a LAN but delivered over a wide area. This latter capability is unique to Ethernet services and cannot be cost effectively delivered using legacy point-to-point technologies such as Frame Relay or IP VPNs.
This paper discusses two options for multi-site connectivity using Ethernet services. One option discusses the classical hub and spoke topology using Ethernet Virtual Private Lines (EVPL). The other option discusses the “any-to-any” topology using an Ethernet Private LAN (EP-LAN) service. Through examples, the paper illustrates the capabilities of the two approaches and their benefits.
This presentation will illustrate how IT leaders are leveraging Unified Communications (UC) to deliver real-world business impact and present a roadmap for moving from application- and device-specific infrastructures to a more flexible Unified Communications (UC) solution.
Download this white paper, and uncover the steps this HIT team took to manage their IT and telecommunications portfolio, translating to millions in savings on their operations budget! Discover the hidden costs of your organization’s technologies, and their massive impact on the annual IT and telecom budget.
Data connectivity has long been a necessity for enterprises big and small, as has the need to use that connectivity to extend enterprise Local Area Network (LAN) across networks. But the process of building an enterprise Wide Area Network (WAN) is anything but easy.
Examine the three broad challenges that Financial Services Institutions (FSIs) face today: compliance and risk management,
consolidation and innovation. To address these effectively, FSIs require an Information and Communication Technology (ICT) infrastructure that offers both the security and reliability of their legacy communications systems as well as the flexibility and scalability that new generation networks provide, in order to adapt and innovate in the highly competitive financial services environment.
There are now a variety of alternatives when it comes to connecting multiple sites with WAN links. Multi Protocol Label Switching is fast gaining popularity for many businesses as their preferred choice when it comes to creating a Virtual Private Network (VPN) over WAN. This paper will discuss the differences between MPLS and IPSec, and the benefits achieved from migrating to MPLS.
The process of subnetting is both a mathematical process and a network design process. Mathematics drives how subnets are calculated, identified, and assigned. The network design and requirements of the organization drive how many subnets are needed and how many hosts an individual subnet needs to support.
IT departments are jazzed about cloud services, which promise fast deployments and major cost savings. But is the cloud actually delivering on these promises? Now that more enterprises have cloud experience under their belts, IDG Research Services decided to find out.
Whether you are starting a new business or expanding your existing business, you will need to choose a business phone system that meets your organisation’s requirements. This guide provides you with essential information and tools so you can understand your options, and make the decision that meets the needs - and ambitions - of your business.
As the digital universe evolves in both volume and scope, companies must be diligent about protecting their content. Fortunately, companies can easily leverage IP information to protect themselves. This paper explores the best practices of using IP intelligence for digital rights management to reduce risk to online content.
Unified communications (UC) is a powerful technology with a multifaceted value proposition. UC can significantly reduce the cost of communications but more importantly raises productivity by streamlining the collaboration process. Download now to read how UC can increase your company productivity.
To enable always-on application access and business connectivity, you need a rock-solid network foundation. The increasingly complex, dynamic and fluid relationship between networks and devices requires a new approach to IP Address Management (IPAM) – one that unifies mobile security, address management, automation and self-service to provide actionable network intelligence and a broad span of control. This paper discusses the critical role of IPAM in providing a smarter way to connect mobile devices, applications, virtual environments and clouds.
"VM performance is ultimately determined by the underlying physical hardware and the hypervisor that serves as the foundation for your virtual infrastructure. This foundation has become simpler over the years, but there are still several areas that need to be fine-tuned to maximize the VM performance for your environment.
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When rack-mounted servers first appeared on the scene in the 1990s, they offered considerable advantages over the behemoth boxes they replaced. Their small, standardized footprint went a long way toward making data centers easier to manage. In the ensuing decades, form factor size and compute power have had an inverse relationship.
Their universal standardization earned them the nickname “pizza box” servers, and it was a key driver of the scale-out computing model popular in the early 2000s. Populating a rack of eight servers and either clustering them or implementing failover from one to the other was far easier than previously possible.
Virtualization was supposed to be the disruptive technology that saved IT. The cost savings from consolidation and the ease at which applications can be deployed promised to vastly improve delivery of IT services, free up IT staff to work on other projects, and not strain budgets.
Unfortunately, lack of insight into IT resource status in highly virtualized environments and the complexity of the interactions between server, storage, and network elements have added to IT staff manual workloads and led most companies to dedicate too much time to operations and not enough time to innovation. This basically negates the major benefits of virtualization.
Riverbed® Cascade Shark provides continuous, high-speed packet capture to ensure that packet-level information is available when needed for granular, real-time and post-event forensic analysis. Based on high-performance 1GbE and 10GbE capture cards, Cascade Shark is capable of sustained line-rate, multi-gigabit per second recording of network traffic.