As part of our IWAN series, I wanted to provide a deeper dive into PfR. Why PfR? It is a fundamental feature that helps customers protect critical apps while increasing bandwidth utilization. I think it is fair to say, every organization can benefit tremendously from this powerful capability.
PfR or Performance Routing is a feature that complements traditional IP routing protocols by adding application intelligence when making routing decisions. Why do we need application intelligence? Routers forward data packets based on their routing tables which are built using dynamic routing protocols such as RIP and OSPF to calculate the shortest path to the destination for the data packets. RIP and OSPF do not look into data packets to determine the type of application they belong to when making routing decisions. As a result if the application is time sensitive like voice over IP (VOIP) or bandwidth intensive like a file backup data packets are treated with the same priority and will be sent over the same route until they reach their destination. This can create problems if you have a single WAN link since a file backup could consume all bandwidth preventing voice packets from passing in a timely manner and impacting the quality of the voice call. QoS or Quality of Service can help to prioritize data on a single link but you may ultimately need more bandwidth.
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Tags: ASR1000, ISR-AX, IWAN, PfR
A few weeks ago when we announced the Cisco APIC Enterprise Module, in response to a post by Cisco VP Jeff Reed, David had quite a lengthy comment to which I’d like to respond. His specific question (within the full comment) was:
Do you see an upside for more value-added offerings — beyond the current anticipated cost-savings debate about the promise of SDN/NFV technologies?
First, thank you David for your questions. In short, Yes. At Cisco we see a lot of value in offering services to our Enterprise customers and also to our partners who offer managed services to their customers. Let me expand on this.
Cisco is fully aware of the emerging market segments with the still nascent SDN technology adoption. As you say, larger telcos and cloud service providers are looking at SDN/NFV with open hardware assessments and are more interested in scaling their deployments of multi-tenancy architectures. Whereas small and medium sized enterprises are evaluating SDN with a more application-centric approach. The main concern, given their modest investment infrastructure, (compared to the telcos and cloud service providers) is about having agile IT that can respond quickly to their business needs. Read More »
Tags: ACI, advanced services, APIC, Cisco ONE, Cisco SDN, NFV, thought leadership
I wanted to share a few fun things that happened / I learned this week and note what’s coming next.
1. In the last few days we had a not one but two webinars this week, but you can FIND ALL THE WEBINARS if you want.
2. We’ve had a few great guest posts recently, too:
3. A funny video on the importance of planing your 802.11ac: Read More »
Tags: #MWC14, enterprise networks, Friday Roundup, video
Network optimization is a touchy subject for many in the IT world, and a particularly thorny issue for the Wide Area Network (WAN). The idea that the network architecture as designed cannot meet the needs of tomorrow is the cause of much discussion, anxiety and in some cases, gnashing of teeth. However, the reality is that the rate of change of applications and ways the WAN is utilized is accelerating, and the methods of designing, testing, implementing and troubleshooting of today are not keeping pace. In addition, traditional services offered throughout the WAN only offer a partial view of the capabilities of what may be available.
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Tags: EN, Glue Networks, Gluware, Intelligent WAN, IWAN, IWAN Wed, IWAN Wednesday, PfR, routing
With increasing demands and decreasing budgets, these are challenging times for many IT professionals. Some savvy IT people, however, are growing their budgets and improving their careers by forging partnerships with business groups who can benefit most from IT’s expertise, and are willing to help pay for it.
Which business groups are most likely to team with IT? Actually, we asked the same question in our recent Business and IT Priority Survey, which queried 1800 business leaders across many VP and CXO roles, including finance, marketing, sales, strategy, human resources, diversity, operations, manufacturing, business development, and more.
Based on this global data, Chief Marketing Officers (CMO) are great potential partners, because while their priorities often align with IT, their budgets may not:
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Tags: chief marketing officer, Cisco Business and IT Priority Survey, CMO, connected mobile experience, enterprise networks, IT budget, MGM Resorts, operations manager, Sheryl Pattek, survey