Cisco Blogs


Cisco Blog > Enterprise Networks

Business Video Increases Demands on the Network

The use of video in enterprises has been growing rapidly as many enterprises are realizing the value of video. Many enterprises use video for multiple aspects of their business operations including corporate communications, team meetings, e-learning, digital signage and the use of video assets within their business processes. Likely a combination of video technologies and tools are required to meet the enterprise needs.

Different video applications will behave differently and put different demands on the network. The chart below illustrates a range of business video applications with different characteristics and network requirements.

Telepresence is two-way real-time video while streaming video is one-way broadcast video. Telepresence has stringent network requirements and it is highly sensitive to latency, jitter and loss, whereas streaming video can better tolerate delays; by buffering a larger amount of content before rendering it, in order to smooth out the video experience and compensate for network jitter.

Generally speaking, it is straight forward to provision the network for Telepresence as long as you know how many rooms are in your network, the typical usage pattern (e.g. 60% usage between office hours) and the traffic characteristics. In contrast to Telepresence, it is much harder to provision the network for desktop collaboration video as the usage pattern is not as well defined. Worst yet, do you know how many users are equipped with high definition web cameras built into their laptop on your network? The situation is exasperated by new collaboration tools with one click away, what started as a low bandwidth instant messaging session could end up be a high bandwidth video desktop collaboration session.

These are just some examples of the challenges associated with deploying, managing and assuring quality of business video applications. As more types of video applications that pose different demands into the network are deployed, the need for intelligent networks like medianets become critical. Medianets can simplify and reduce costs of deploying video, as well as efficiently use network resources and dynamically adapt to changing network conditions and demands from different video applications to deliver optimal video quality.

Tags: , , , ,

Campus Networking – Making the most widely deployed modular platform better

How do you take the most widely deployed modular switch in the industry, and make it better?  With more than 650,000 chassis deployed, how do you protect your customers’ investments in their existing platform while offering a seamless path to deploy new components without forcing “fork-lift” upgrades?

On October 5th, Cisco announced a complete refresh of the Catalyst 4500 series platform, the most widely deployed modular platform in the industry, with new supervisor engine, line cards and operating system.  We gave it 2.6x more bandwidth, and the highest PoEP port density of any access switch in the industry.  Catalyst 4500E comes with an open and modular operating system, IOS XE that is capable of running 3rd party services.  The new system is highly available with features such as sub 10 millisecond In Service Software Upgrades.  Flexible NetFlow brings unprecedented application visibility.  Catalyst 4500E ships with a single universal software image – one image for LAN Base, IP Base and Enterprise Services that is managed by software licensing application.  Customers can also introduce new line cards without upgrading the OS.  We designed Catalyst 4500E for the future while providing support for the past by making the new components compatible with existing chassis.  In fact, Catalyst 4500 platform offers the longest investment protection of any modular access switch in the industry with more than 10 years of backward compatibility. 

Read More »

Tags: , , , , , ,

Better Together – The Inevitable Integration of Networks and Rich Media Applications – Part 3

In part 2 of this blog series, I discussed the need for the network to operate in collaboration with rich media applications to deliver quality services.

The key to a successful medianet architecture is the integration of endpoint/application and network to deliver a flexible end to end system. By exchanging information between these two entities, it enables the network to deliver the right services to the application whilst maximizing the resources available. This enables the network to understand the changing requirements of the application and can lead to the endpoint explicitly asking for services, such as recording and transcoding, rather than the network relying on traffic analysis to determine whether a service is needed or not. Intelligent interaction would also enable the network to negotiate service levels with the endpoints.

Read More »

Tags: , , ,

How Do You Plan for 2011 – Part 1: Beyond Server Virtualization

I was reading the recent TheInfoPro report (Information Security Wave 13, 2010) last week. It confirmed a major trend. That is, server virtualization has gained great acceptance. The report shows that more than 45% of organizations now have their servers running on virtualized equipment, with another 30% being planned within the next two years. Such impressive adoption rate is not surprising, given the clear business benefits.  The Cisco Connected World Report, Part 3 revealed that increased IT agility and flexibility, as well as optimized resource to save cost are the leading factors that drive virtualization. Looking ahead, virtualization adoption will go beyond just servers.

Earlier this month, LG made a media splash as it announced its intent to offer Android phones that can switch identities when a user taps on the VMWare icon on the phone screen. This would allow the user to switch between two phone SIM cards—one her personal number, and the other her corporate number given by her company. Isn’t it cool to carry your own personal hypervisor anywhere you go?

Read More »

Tags: , ,

Customer Success in Accelerating Performance – How did an International Insurance Company use WAAS Effectively?

National Insurance Company Limited of India (NIC) delivers near real-time performance for its core applications to remote offices with Cisco’s Wide Area Application Service (WAAS).

National Insurance Company (NIC) Limited has many users across over 1,000 branches throughout India. These branches connect to their main data center using a decentralized network model that links remote offices using a mix of 64 Kbps and 128 Kbps connections.  Under this model, NIC’s remote offices were facing slower application processing due to high WAN latency, heavy network traffic, and increasing transactions, among other factors.

NIC Deputy General Manager (IT), Mr. D. K. Sinha knew that they needed to do something different to boost application performance to cater for their new core insurance application (CIA).  Their users were experiencing slow network performance, even with applications such as Lotus Notes; moreover, the bandwidth upgrade at remote locations came with a heavy price tag.  In conclusion, NIC needed a new network solution to accelerate applications, cut branch infrastructure costs, and simplify remote data protection.

Read More »

Tags: , , , , ,