Saturday 19 June 2021

Create new possibilities at the IoT Edge with the Cisco Catalyst IR1800 Series

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Get ready for an all-new Cisco industrial router: the Cisco Catalyst IR1800 Rugged Series. With many new interfaces and modules backed by a stronger CPU and more memory, the IR1800 series gives IoT application developers new possibilities for innovating at the IoT Edge, for example to host applications that can extract and transform IoT data right at the edge. The DevNet IoT Dev Center has a new learning lab and sandbox so you can try out these new features on a real IR1835 ruggedized router.

More Info: 300-715: Implementing and Configuring Cisco Identity Services Engine (SISE)

With the 5G/LTE, Wi-Fi 6, industrial SSD and GPS modules, the IR1800 series prepares you for the future, but that’s not all. The IR1800 focuses on supporting mobility , especially in the transportation industry with features like CAN bus, FirstNet, GPS/GNSS + dead reckoning and ignition power management. Furthermore, you can access all these interfaces from your IOx edge applications and use the data to power use-cases like recording video surveillance, streaming multi-media entertainment and advertisement content or providing predictive maintenance for the vehicle itself.

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IR1835: Industrial Routing & Edge Compute Sandbox Overview

IOx Edge Compute


All models of the IR1800 series support the Cisco IOx Edge Compute Framework which allows you to install and deploy your dockerized applications directly on the device. With the updated 1.2GHz quad-core ARM CPU and 8GB memory, you also have a strong compute device at the edge. Furthermore, you can add an industrial SSD which extends your storage to more than 100GB, for example for on-board videos, images, databases, and log files.

Want to try deploying your Docker containers and IOx applications on the IR1835? Check out this iox-webserver sample application on the DevNet Code Exchange which you can download or build to get started.

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On-box IOx Local Manager: Managing your IOx applications on the IR1835.
Here the NGINX server is installed and reachable on Port 8000.

Device APIs NETCONF & RESTCONF


Since this Router runs Cisco’s open and programmable IOS-XE operating system, you can configure the device via device level APIs such as NETCONF/RESTCONF. This means that you can change any device configuration by simply running a Python script from your local machine and apply the changes on as many devices as you want.

The new DevNet learning lab walks you through how you can get operational data directly from the device or even change the device configuration with simple REST calls or Python scripts.

WebUI


Check out the user-friendly on-box Device Manger (WebUI) shown below. Now you can easily navigate through the monitoring data, configuration, and settings of your industrial device from a browser window.

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Graphical User interface on the IR1835

Source: cisco.com

Thursday 17 June 2021

Secure and Save with Cisco Secure Firewall Threat Defense Virtual

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Simultaneously secure and save with new 7.0 features and subscription models

Organizations rely on Cisco Secure Firewall Threat Defense Virtual (formerly FTDv/NGFWv), Cisco’s proven network firewall with IPS, URL filtering, and malware defense that protects virtualized environments in private and public clouds.

In addition to the improved IPS performance with Snort 3 and the new support for Hyperconverged Infrastructure platforms, our 7.0 release brings a wealth of other visibility, management and performance enhancements. This includes two additional improvements for Secure Firewall Threat Defense Virtual: licensing enhancements that lower consumption cost, plus a much larger virtual appliance option, FTDv100, that provides increased performance with a 16-core CPU configuration.

Licensing enhancements

The capabilities of our virtual firewall offerings can be cost-effectively consumed with a new, flexible, tiered licensing model. By making the base software available as a subscription with 1, 3, and 5-Year terms, customers benefit with lower total cost of ownership. These subscriptions include basic online embedded support, further lowering ownership cost when compared to perpetual licenses. Further, subscriptions enable a shift in spending from CapEx to OpEx, and allow portability across on-prem and cloud deployments.

Additionally, we are introducing performance tiers for Secure Firewall Threat Defense Virtual. This includes a low entry price, suitable for organizations of all sizes and requirements. With the performance tier licensing model, customers can now pick and choose the tier that meets their throughput requirements. Throughput starts at 100Mbps and extending to 16Gbps. The performance-tiered licensing also provides different VPN session limit options, depending upon your deployment requirements.

Any of the licenses can be used on any supported configuration, allowing higher tier licenses on lower tier vCPU/memory configurations, for future expansion flexibility.

Table 1: Performance tiered license entitlements

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Software upgrade considerations


For current deployments running 6.7 or below, the upgrade to 7.0 will, by default, maintain the variable license tier and uses the non-tiered license entitlements. Customers can also choose the specific performance tier from their Cisco Smart Licensing account using Firewall Management Center or the local Firepower Device Manager.

Customers who have an existing non-tiered license can continue to use all entitlements, including the new FTDv100 tier.

Figure 1: Tier Selection in Secure Firewall Management Center (FMC)

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Public Cloud


Performance-tiered licenses can be applied and used on any supported platform,  including public clouds like Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), and Oracle Cloud Infrastructure (OCI) using the Bring Your Own License (BYOL) model.

The ability to use any of the performance-tiered licenses, on any supported resource combination, (i.e., vCPU/memory) enables virtual firewall licenses to be used on a wide variety of instance types across AWS, Azure, GCP and OCI platforms.

Support


The Base and TMC subscription include 8X5 online support at no additional cost and also provides software upgrades.

Cisco Solution Support is also available for the Base and TMC subscription that provides 24X7 technical phone support and is the recommended level of support.

Source: cisco.com

Tuesday 15 June 2021

DNA Center Template Labs – Getting Started Series, Part 1

Prologue

Over the years, as new technology has been introduced, there has always been a barrier to adoption. While automation is powerful, we need to test it fully. Delays in getting started are typically caused by the wait on lab equipment. If it’s not lab equipment, it’s licensing or the time required to set up and cable the equipment. This, together with the development time, resources, and scheduling, makes the whole activity painful. This typically causes a gap between the time technology is launched to the time it is adopted. It also means that there is a learning curve which typically adds even more delay to adoption by organizations. This leaves one to ask exactly how do I get started with DNA Center Templates.

But what if there was a better way!

dCLOUD is a Cisco environment that provides curated content labs. dCLOUD allows the user a new way of experiencing the Cisco portfolio. It allows the user to try out the new technology in a safe environment. It also helps to save time, reduce shipping costs, licensing issues, power, and cooling needs. All this and while still allowing an environment to test various features and functions.

Overview

In this ongoing series, we will explain each of the labs. The labs are set up to help you learn more about templating, Plug and Play, and Day N automation. Together with helpful labs and guided examples that can be downloaded and implemented within dCLOUD or modified for use in your own lab environment.

How?

Within dCLOUD, several sandbox-type labs are available. These self-contained environments are there to allow you to use them as you please within the time scheduled. This allows us a place to start practicing various concepts without fear of impacting production environments.

Therefore, to aid customers in the transition toward automation, we have put together a set of small helpful labs within a Github repository. As a result, we hope to demystify some of the complexities of setting up plug-and-play and help guide customers through the complexities and caveats. In this way, these self-guided labs provide a glimpse into the fundamentals of building velocity templates and provide examples that you can download and expand from. The sample templates and JSON files supplied are for easy import into DNA Centers’ template editor for quicker adoption. Lastly, some scripts are ready-made excerpts of code that allow you to build the environment to test.

First, in a practical lab guide, we step by step delve into the concepts of building templates and methodologies for using both Onboarding and DayN templates. Second, we provide answers and explanations to many of the questions that come up during automation workshops. Our hope is that you find the information both helpful and informative. Thus, we hope to give a well-rounded explanation of automation methods and concepts that we can easily expand upon for production purposes.

The lab content is located within the existing DNAC-TEMPLATES repository to give a one-stop-shop for all the necessary tools, scripts, templates, and code samples. Within it are four labs, which build upon the tutorials allowing you to test the methods in a lab environment.

DNAC Template LABS

These labs aim to guide you through the typical steps required to enable the various automation tasks delivered by DNA Center. This lab will give examples of templates used in DNA Center that we can modify for our use and test on equipment within the LAB environment. Additional information within the lab provides a well-rounded explanation of Automation methods with Templates. Lastly, the lab allows for customers to use DNA Center workflows to practice deploying Onboarding, DayN Templates, and Application Policy automation on both Wired and Wireless Platforms.

The goal of this lab is for it to be a practical guide to aid engineers to rapidly begin using DNA Center automation and help them work towards a template strategy. Additionally, this lab will give customers a permanent place to try out the templates and include configurations for various use cases. This environment will enable engineers to reduce the time and effort needed to instantiate the network.

As a result, you will gain experience in setting up Plug and Play onboarding and templates. Additionally, you will use advanced templating methods and troubleshooting tools. These may help during faultfinding to determine what is failing in a deployment.

Please use this menu to navigate the various sections of this Github repository. Within the multiple folders are examples, explanation readme files for reference.

PnP Preparation – This lab explains the overall Plug and Play set up steps

Onboarding Templates – This lab explains in-depth and how to deploy Day 0 templates

Day N Templates – This lab will dive into Day N template constructs and use cases

Composite Templates – This lab will explore how to build a composite template on DNA Center.

We will share additional, labs and content in an ongoing effort to fulfill all your automation needs with DNA Center.

dCLOUD as a LAB

To help customers succeed with DNA Center Automation, you may utilize the above labs as they have been designed to work within dCLOUD’s Cisco Enterprise Networks Hardware Sandbox v2.1 Lab. This allows you to run these labs and gives an environment to try the various code samples. You may choose to develop and export your own code for use in production environments. Also, this gives you an environment where you can safely POC/POV methods and steps without harming your own production environments. This also negates the need for shipping equipment, lead times, and licensing issues needed to get moving rapidly. Please do adhere to the best practices for the dCLOUD environment when using it.

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The dCLOUD environment consists of the following:

Software:

DNA Center 2.1.2.5
Identity Services Engine (ISE) 3.0 (Not Configured)
Stealthwatch 7.1
FlowCollector 7.1
Cisco Prime Infrastructure 3.9
Wireless LAN Controller - C9800 running IOS-XE Amsterdam 17.3.3 code.
Windows 10 Jump Host 
Windows Server 2019 - Can be configured to provide identity, DHCP, DNS, etc.
Windows 10 Clients 

Hardware:

ISR 4451 Router - 17.3.3 IOS-XE Code
Catalyst 9300 Switch - 17.3.3 IOS-XE Code with Embedded Wireless Controller (EWC) and ThousandEyes Enterprise Agent
Catalyst 3850 Switch - 16.12.5 IOS-XE Code
4800 Access Points
Silex Controller (2 NIC's)

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The environment allows for use with a web-based browser client for VPN-less connectivity, access as well as AnyConnect VPN client connectivity for those who prefer it. You may choose from labs hosted out of our San Jose and RTP Facilities by either selecting US East or US West. Choose the Cisco Enterprise Network Sandbox v2.1 or 3.1. To access this or any other content, including demonstrations, labs, and training in dCLOUD please work with your Cisco Account team or Cisco Partner Account Team directly. Your Account teams will schedule the session and share it for you to use. Once booked follow the guide within Github to complete the tasks adhering to the best practices of the dCLOUD environment.

Source: cisco.com

Monday 14 June 2021

What’s New for DevNet Specialization?

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The DevNet Specialization for Cisco’s Partners is constantly evolving. A couple of weeks ago, Chuck Stickney (DevNet Specialization Lead) together with Markus Lind (CEO, Miradot), had a great discussion in one of the Partner Interactive Webinars in Cisco’s Europe/Middle East/Africa/Russia region. One of the main topics was how Miradot – our first DevNet Specialized Partner – is applying DevNet to their solutions. How DevNet is helping them transform their business and deliver successful outcomes to the customers.

More Info: 300-710: Securing Networks with Cisco Firepower (SNCF)

There are 3 major areas through which DevNet enables business transformation:

◉ Agility, innovation, and speed

◉ Ecosystem innovation

◉ Team and processes

Empowering differentiation through APIs

One of the crucial points on the journey to business transformation is also empowering innovation and differentiation through APIs. During the webinar, attendees learned how APIs can apply to different use cases across different industries, including retail, healthcare, manufacturing, finance, and others. The skillset and knowledge that is reflected by DevNet Specialization can be fantastic proof to your customers that you can deliver innovative solutions that empower automation across their organizations.

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Why become Specialized?


Markus Lind, CEO of Miradot, shared with us some insights into how his organization has benefited by achieving the DevNet Specialization. Why was that important? Being a small-sized partner company, they wanted to make sure, they not only have the way to increase their market base, but also to make change. They knew that amongst all the competition in their market, they needed something unique to differentiate themselves – which is when they started their journey to become DevNet Specialized.

How does it help them run the business on a daily basis?


Through the DevNet Specialization, Miradot has managed to have over 50% of their employees become DevNet Certified. They felt that to succeed and differentiate themselves across different partners, they had to find their niche. It turned out that the way to get their customers to have better discussions with them, is to embrace automation in their organization. Since becoming DevNet Specialized, Miradot has helped their customers define and navigate their infrastructure.

Source: cisco.com

Sunday 13 June 2021

5 Acquisition Strategies to Support CIOs Keeping Pace with Innovation

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The pace of new technology adoption and innovation to help prevent future disruption while remaining competitive has accelerated beyond all expectations. When the global pandemic first hit, businesses scrambled to get their workforce and operations back online. What would have taken months, suddenly had to happen instantly.

More Info: 300-415: Implementing Cisco SD-WAN Solutions (ENSDWI)

Now, as CIOs continue to drive transformation, there are several ways to get access to the technology needed to recover and grow without having to break your budget.

1. Don’t own it

Pay to use has never been a more attractive model than it is today. With a large proportion of employees in many industries expected to work remotely for the foreseeable future under a hybrid workplace model, the number of office branches is likely to increase. You will need to upgrade your infrastructure so that it can be scaled quickly to support a user experience that keeps employees productive and secure.

Without having to compromise on your priorities, there are options that allow your business to use budget effectively as you plan your recovery. IT-as-a-Service allows businesses to get the technology needed with no upfront costs, and they can pay over time as they use it.  Entire infrastructure solutions can be implemented with supporting technology, software and tools—all paid for using subscription-type models. Not only does this alleviate some of the budgetary pressure, but it also lends itself to an asset-light strategy that many businesses are now striving for.

2. Justifying OpEx over CapEx

As the CIO, you’re trying to lead your organization through digital transformation while making it as painless as possible. With many industries continuing to lean heavily on finance to underpin pandemic related shortfalls in revenue, justifying any CapEx can seem impossible. But, by moving technology costs from CapEx to OpEx you avoid large initial investments, enabling you to shift budget priorities and support key transformation projects. IT financing can simplify accounting by rolling all your technology needs into regular payments, making it easier to track against budgets and allow the business to follow market trends, upscale to evolve, and increase competitiveness.

3. Go green and get more for your money

You can extend available budget and shrink your company’s carbon footprint by using certified remanufactured equipment. This allows you to access equipment at a more competitive price while still receiving the same warranties and product support. In addition, by financing this equipment you can upgrade when you need to and offset the cost against future revenue.

4. Begin with the end in sight. Your CFO will thank you!

Managing technology can be complicated, particularly as we all look to return to some semblance of normal. Creating a lifecycle management plan for the technology needed at this time can help avoid a future of depreciating assets, while also helping you stay ahead with the latest innovations. IT budget planning becomes easier, and you can run your businesses more efficiently with up-to-date infrastructure and the latest software solutions. This helps align OpEx payments with the benefits gained from refresh lifecycles, while managing cash flow and budget needed to further grow your business, as well as removing depreciating assets from your CFO’s balance sheet.

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5. True up, true forward. Take the guesswork out of unpredictable usage

As your business evolves and you update your infrastructure to enable the best collaboration and customer experience to remain productive, effective acquisition of the right technology can help you meet your business goals and grow. Forecasting user uptake of new technology is hard enough with all the proper pilots in place, but when new tools are services are stood up in a hurry, predicting capacity can be a huge gamble. However, access to as-a-service, subscription-like models or spreading the cost of your solutions over time allows you to focus on your other priorities and fund other investments.

Cisco is here to support you as you expedite your digital transformation. Along with Cisco Capital, we can help you determine not only what to buy but also how to buy it to match your business requirements and budget strategy. Whatever your plans are, we’re here to meet you where you are.

Source: cisco.com

Saturday 12 June 2021

Establish, Enforce, and Continuously Verify Trust with SD-Access in Simple Steps

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To effectively protect precious data resources across campuses from infiltration, exfiltration, and ransomware, Enterprise IT needs deep visibility into everything connecting to the network and the ability to segment devices by access permissions and security policies. The goal is to attain a Zero-Trust Enterprise based on least-privileged access principles that prevents the lateral movement of threats and automatically isolates any offending endpoint or intrusion.

More Info: 200-201: Threat Hunting and Defending using Cisco Technologies for CyberOps (CBROPS)

Today, millions of enterprise endpoints are protected with implementations of Cisco Software-Defined Access (SD-Access), a solution within Cisco DNA Center. Thousands of enterprises are already well along on their journey to obtaining a zero-trust network using endpoint analytics, policy analytics, segmentation, and rapid threat containment capabilities of SD-Access. Now, with the introduction of Continuous Trusted Access with SD-Access Trust Analytics—using AI/ML anomaly modeling and spoofing prevention—the five phases of attaining zero-trust are available to all types of organizations at any stage of their implementation. The complete Cisco SD-Access solution provides inherent flexibility for enterprises to begin or continue the zero-trust journey according to their business priorities and desired outcomes.

This software release will be generally available (GA) in mid-June 2021, or contact your account team for early access.

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Existing Networks Benefit from a Flexible Zero Trust Journey


Cisco understands that NetOps and SecOps must build segmentation upon what is already in place, adding capabilities in stages to achieve the desired zero trust outcome for both existing and new network installations. Organizations can use SD-Access to start the journey to zero trust at different stages depending on business priorities.

Adventist Health started its zero trust journey with Cisco AI Endpoint Analytics to find and categorize over 75,000 compute and IoT devices on their multi-state spanning network. Cisco AI Endpoint Analytics uses Deep Packet Inspection (DPI) and advanced AI/ML algorithms to search crowdsourced databases to obtain more granular information about many different device types. Adventist Health even uses the enhanced device visibility from AI Endpoint Analytics to identify devices that are discontinued and no longer supported by manufacturers, which are more susceptible to malware intrusions and other threats. Adventist Health sees AI Endpoint Analytics as an enabling technology that provides the much-needed endpoint visibility and security grouping that will help define their future segmentation policies.

KB Securities needed a more efficient method of managing segmentation access policies as their workforce moved freely among campus buildings. Instead of manually adjusting individual policies, they are using SD-Access segmentation to automatically adjust and apply access policies as the workforce shifts among wired and wireless networks, eliminating time-consuming manual interventions.

One of the largest financial institutions in the world needed a zero trust approach for protecting the organization’s connected endpoints worldwide. IT chose to implement the new SD-Access Trust Analytics to analyze and model normal endpoint behavior to detect anomalies that indicate intrusion attempts before they can cause a data breach of sensitive information.

In SAIC Volkswagen’s new Modularer Elektrobaukasten plant—a modular chassis designed by Volkswagen specifically for electric cars—the production systems need to be on separate networks for reliability and stability reasons. But instead of building distinct networks, SD-Access simply segments the single physical network into multiple logical networks that keep production systems traffic separate, but under the control of one Cisco DNA Center. As a result, the network is more manageable, and IT can more easily connect and secure thousands of IoT and robotic devices throughout the plant. With Cisco SD-Access, SAIC Volkswagen was able to use existing L2 access switches, enabling a smooth migration of services and reducing up-front costs.

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Cisco SD-Access provides multiple paths to attaining zero-trust enterprise networks with a faster time to value.

Enterprises Are in Control of Their Zero-Trust Journey


The ability to start the zero trust journey at a point that aligns with the business priority for each enterprise expands the number and types of use cases for Cisco SD-Access. Cisco SD-Access is the only solution in the industry that provides all the capabilities required for Zero-Trust in the workplace with Visibility (endpoint analytics and traffic policy discovery), Segmentation, Continuous Trust Assessment, and Containment that can be implemented in phases to meet each organization’s security goals.

The recent updates to the SD-Access solution lowers the barrier to embark on a zero-trust journey, especially in existing, heterogeneous networks. Each step along the journey adds incremental value as the threat surface diminishes and enterprises gains more control over every endpoint that joins the network by restricting the resources with which they can communicate. For example, a new personal BYOD connecting to the network can be identified, classified, and initially assigned to a security group segment that only has very limited access to enterprise resources until the device and owner are verified.

Implement SD-Access Segmentation Without Routed Access


To support existing estates that use more traditional networking constructs, SD-Access now supports Layer 2 Switched Access including the option of preserving existing VLANs and IP address pools. In this deployment scenario, the SD-Access Fabric originates at the network aggregation layer. The solution offers the flexibility for enterprises to map existing access VLANs to macro/micro segments in the SD-Access Fabric. To minimize lateral movement of threats, enterprises also have the option to extend the micro-segmentation policies to the Layer 2 Switched Access node. These flexible design options enable enterprises to begin their zero-trust journey without re-designing their existing networks.

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Cisco SD-Access now supports Layer 2 Switched Access

“Cisco networking devices, Cisco DNA Center, and SD-Access gave us a flexible networking platform that we could adapt to our unique needs. We were able to integrate third-party industrial switches, keep the factory operating efficiently by quickly locating and fixing network issues, and free our highly-trained engineers from day-to-day operational burdens.” – Xiaoqing XU, IT Director, SAIC Volkswagen

Deploy Macro-Segmentation Before Implementing Cisco ISE


The fully automated turnkey fabric-based architecture offered by SD-Access is an attractive alternative to MPLS-based VRF, VRF-lite and other operationally cumbersome legacy segmentation technologies. With Cisco DNA Center release 2.2.2.0, we have disaggregated the capabilities within SD-Access Fabrics. Enterprises now have the option to use SD-Access to rapidly achieve macro-segmentation of networks even in scenarios where Cisco ISE is not currently being used to authenticate endpoints. This option makes it easier for organizations to get started with SD-Access and expand to other use cases at their own deployment pace and schedule.

You Can’t Secure What You Can’t See


One of the early barriers to begin building a zero-trust enterprise is knowing what devices are connecting to the network, which devices and applications they are communicating with, and developing a deep historical perspective to detect anomalies. That’s why many organizations—such as the Adventist Health example—start with Endpoint Analytics to understand the current threat surface and then apply policy analytics to understand the behavior of traffic patterns.

Implementing Continuous Trust Assessment with the new Cisco Trust Analytics enables IT to develop and use models of typical device behaviors, usage, and traffic history to understand “normal” network operations to protect against spoofing attacks. Trust Analytics detects traffic from endpoints that are exhibiting unusual behavior by pretending to be trusted endpoints using MAC Spoofing, Probe Spoofing, or Man-in-the-Middle techniques. When Trust Analytics detects such anomalies, it signals Endpoint Analytics to lower the Trust Score for the endpoint to completely deny or limit access to the network.

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Cisco SD-Access Continuous Trust Assessments

Supplementing the network with Cisco Identity Services Engine completes the continuous trust cycle by aggregating device classification, segmentation rules, and trust analytics to monitor, identify, and isolate any detected device anomalies that can indicate a breach or infection. Cisco ISE provides rapid threat containment and remediation by automatically detecting and isolating suspicious devices or people logging in from unusual or unknown locations.

Attaining Zero Trust is a Flexible Journey


While the ultimate goal is a zero-trust state for all devices, applications, and people, each implemented capability of SD-Access enables enterprises to gain greater control over the security of the network. To prioritize desired outcomes, enterprises are in control of the pace of the journey from starting point to end results. The Zero-Trust Enterprise becomes a flexible journey as campus networks grow and adapt to new endpoint devices, IoT technologies, geographic configurations, and applications that can be accessed from anywhere. All these innovations for the flexible journey to zero trust are benefits of Cisco DNA Center release 2.2.2.0. Start your journey to zero trust today with Cisco SD-Access.

Source: cisco.com

Friday 11 June 2021

Latest Cisco 500-450 Certification Exam Sample Questions and Answers

Cisco UCCEIS Exam Description:

This exam tests a candidate's knowledge of installing and deploying Cisco Unified Contact Center Enterprise (Cisco Unified CCE) solutions. Cisco Unified CCE is part of the Cisco Unified Communications application suite, which delivers intelligent call routing, network-to-desktop computer telephony integration (CTI), and multichannel contact management to contact center agents over an IP network. Skills assessed include install, setup, configure, and troubleshoot the solution.

Cisco 500-450 Exam Overview:

Exam Name:- Implementing and Supporting Cisco Unified Contact Center Enterprise

Exam Number:- 500-450 UCCEIS

Exam Price:- $300 USD

Duration:- 75 minutes

Number of Questions:- 65-75

Passing Score:- Variable (750-850 / 1000 Approx.)

Recommended Training:-

Exam Registration:- PEARSON VUE

Sample Questions:- Cisco 500-450 Sample Questions

Practice Exam:- Cisco Unified Contact Center Enterprise Specialist Practice Test

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