|By AppNeta Blog||
|February 20, 2017 09:00 PM EST||
Five Network Metrics for a Cloud World
By Christine Cignoli
As the network has moved from a physical entity to a more abstract one, IT has valiantly kept pace by researching and deploying new network devices and functionality. IT teams have had to shift workloads and mindsets to the cloud and to SaaS providers, while remaining responsible for end-user experience-which is ever more important.
It's a tangled web in the networking world today, but all is not lost. We recommend these five metrics as the building blocks to measuring end-user experience and network performance in the cloud. They'll likely look pretty familiar: They're the same old metrics as were useful in the pre-cloud world, and can offer valuable insights now, too (though you'll need to be able to see into the cloud to get them - AppNeta can help with this).
1. Latency. This metric measures the time it takes for packets to travel from source to destination, measured asymmetrically to match the asymmetric nature of the internet. Latency is about perception, so the perception of latency is different for different users and applications. In the old days, when 100 people were using a local application, 10 milliseconds of latency wasn't a problem. But now, there are thousands of people using an app in the cloud, and a tenfold increase in latency (100 milliseconds) isn't acceptable.
In addition, web applications are very chatty. A web app comprises a series of requests and responses from the client to the web server. So the increase in latency will affect each of these requests and objects downloaded. For a business-critical SaaS app, the increased latency can have a big effect on productivity.
Once you identify that latency is a problem, you'll need to figure out where it's occurring. It could be in your network, your WiFi, your WAN connection, over the open internet or even in your service provider's environment. Beyond basic troubleshooting, you'll need better tools. Simple methods like traceroute can give a rough idea of the route from the user to the app, but the routes will likely be different each time.
2. Packet loss. This is the percentage of network packets that are lost between the source and destination. Depending on the protocol in use, packet loss can lead to network congestion, wasted time and frustrated users. In small bursts, networks can handle loss, but if loss compounds then it can have severe effects on end users.
Back when apps were all hosted internally over the LAN, packet loss wasn't really a concern. If there was packet loss, it was pretty straightforward to find and fix. But on the open internet, it's a different story. Internet protocol TCP guarantees delivery, but if it detects packet loss and re-transmits the data, it adds latency and leads to congested networks.
Today's VoIP and video streaming applications are where packet loss can be particularly noticeable, with dropped calls and poor quality. It's possible to track packet loss independently on both data and voice if you're supporting those applications.
3. Capacity. Capacity has taken over for bandwidth, which used to be a primary network metric. Now, though, path-based metrics like capacity are more indicative of user experience. Capacity is an end-to-end metric measuring the maximum possible transit rate between source and destination, limited by the most congested hop along the application delivery path. This becomes especially important when considering cloud services, since you don't have control over a provider's network, and don't know how fast the connection really is.
Measuring capacity gauges the actual application path, including WiFi. And continuous monitoring that includes capacity is what's needed when using the dynamic internet.
There are two varieties of capacity: available and utilized. Available is the most accurate measure of network resources available to applications, and can identify the root cause of degradation. When looking at utilized capacity, high utilization is a strong indicator for performance degradation. It's possible to reduce troubleshooting time when tracking capacity by isolating where the slowest hops are.
4. Jitter. This metric reflects the percentage of packets with delay variation between source and destination. When jitter is problematic, it's highly visible. The quality of a call or online meeting can be affected with as low as 30 to 40ms of jitter.
5. Quality of Service. This metric ties to routing priority for traffic over specific ports or protocols. It matters when congestion hits a network, since QoS is what ensures a good experience on business-critical applications. For some apps like VoIP or video, if those routing priorities are demoted or re-marked, the network can experience jitter, data loss and latency.
In this world of cloud challenges and possibilities, it's easy to lose sight of the old metrics. But these five metrics are a good way to regain the right amount of control over your apps and users' experience.
@DevOpsSummit at Cloud Expo taking place June 6-8, 2017, at Javits Center, New York City, and is co-located with the 20th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world.
DevOps at Cloud Expo / @ThingsExpo 2017 New York
(June 6-8, 2017, Javits Center, Manhattan)
DevOps at Cloud Expo / @ThingsExpo 2017 Silicon Valley
(October 31 - November 2, 2017, Santa Clara Convention Center, CA)
Download Show Prospectus ▸ Here
The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long development cycles that produce software that is obsolete at launch. DevOps may be disruptive, but it is essential.
@DevOpsSummit will expand the DevOps community, enable a wide sharing of knowledge, and educate delegates and technology providers alike. Recent research has shown that DevOps dramatically reduces development time, the amount of enterprise IT professionals put out fires, and support time generally. Time spent on infrastructure development is significantly increased, and DevOps practitioners report more software releases and higher quality. Sponsors of @DevOpsSummit will benefit from unmatched branding, profile building and lead generation opportunities through:
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- Capitalize on our Comprehensive Marketing efforts leading up to the show with print mailings, e-newsletters and extensive online media coverage.
- Unprecedented PR Coverage: Editorial Coverage on DevOps Journal
- Tweetup to over 75,000 plus followers
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For more information on sponsorship, exhibit, and keynote opportunities, contact Carmen Gonzalez by email at events (at) sys-con.com, or by phone 201 802-3021.
The World's Largest "Cloud Digital Transformation" Event
@CloudExpo / @ThingsExpo 2017 New York
(June 6-8, 2017, Javits Center, Manhattan)
@CloudExpo / @ThingsExpo 2017 Silicon Valley
(Oct. 31 - Nov. 2, 2017, Santa Clara Convention Center, CA)
Full Conference Registration Gold Pass and Exhibit Hall ▸ Here
Register For @CloudExpo ▸ Here via EventBrite
Register For @ThingsExpo ▸ Here via EventBrite
Register For @DevOpsSummit ▸ Here via EventBrite
Sponsors of Cloud Expo / @ThingsExpo will benefit from unmatched branding, profile building and lead generation opportunities through:
- Featured on-site presentation and ongoing on-demand webcast exposure to a captive audience of industry decision-makers
- Showcase exhibition during our new extended dedicated expo hours
- Breakout Session Priority scheduling for Sponsors that have been guaranteed a 35 minute technical session
- Online targeted advertising in SYS-CON's i-Technology Publications
- Capitalize on our Comprehensive Marketing efforts leading up to the show with print mailings, e-newsletters and extensive online media coverage
- Unprecedented Marketing Coverage: Editorial Coverage on ITweetup to over 100,000 plus followers, press releases sent on major wire services to over 500 industry analysts
For more information on sponsorship, exhibit, and keynote opportunities, contact Carmen Gonzalez (@GonzalezCarmen) today by email at events (at) sys-con.com, or by phone 201 802-3021.
All major researchers estimate there will be tens of billions devices - computers, smartphones, tablets, and sensors - connected to the Internet by 2020. This number will continue to grow at a rapid pace for the next several decades.
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend @CloudExpo | @ThingsExpo, June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA. Learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
Track 1. FinTech
Track 2. Enterprise Cloud | Digital Transformation
Track 3. DevOps, Containers & Microservices
Track 4. Big Data | Analytics
Track 5. Industrial IoT
Track 6. IoT Dev & Deploy | Mobility
Track 7. APIs | Cloud Security
Track 8. AI | ML | DL | Cognitive Computing
Delegates to Cloud Expo / @ThingsExpo will be able to attend 8 simultaneous, information-packed education tracks.
There are over 120 breakout sessions in all, with Keynotes, General Sessions, and Power Panels adding to three days of incredibly rich presentations and content.
Join Cloud Expo / @ThingsExpo conference chair Roger Strukhoff (@IoT2040), June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA for three days of intense Enterprise Cloud and 'Digital Transformation' discussion and focus, including Big Data's indispensable role in IoT, Smart Grids and (IIoT) Industrial Internet of Things, Wearables and Consumer IoT, as well as (new) Digital Transformation in Vertical Markets.
Financial Technology - or FinTech - Is Now Part of the @CloudExpo Program!
Accordingly, attendees at the upcoming 20th Cloud Expo / @ThingsExpo June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA will find fresh new content in a new track called FinTech, which will incorporate machine learning, artificial intelligence, deep learning, and blockchain into one track.
Financial enterprises in New York City, London, Singapore, and other world financial capitals are embracing a new generation of smart, automated FinTech that eliminates many cumbersome, slow, and expensive intermediate processes from their businesses.
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More than US$20 billion in venture capital is being invested in FinTech this year. @CloudExpo is pleased to bring you the latest FinTech developments as an integral part of our program, starting at the 20th International Cloud Expo June 6-8, 2017 in New York City and October 31 - November 2, 2017 in Silicon Valley.
The upcoming 20th International @CloudExpo | @ThingsExpo, June 6-8, 2017, at the Javits Center in New York City, NY and October 31 - November 2, 2017, Santa Clara Convention Center, CA announces that its Call For Papers for speaking opportunities is open.
Submit your speaking proposal today! ▸ Here
Our Top 100 Sponsors and the Leading "Digital Transformation" Companies
(ISC)2, 24Notion (Bronze Sponsor), 910Telecom, Accelertite (Gold Sponsor), Addteq, Adobe (Bronze Sponsor), Aeroybyte, Alert Logic, Anexia, AppNeta, Avere Systems, BMC Software (Silver Sponsor), Bsquare Corporation (Silver Sponsor), BZ Media (Media Sponsor), Catchpoint Systems (Silver Sponsor), CDS Global Cloud, Cemware, Chetu Inc., China Unicom, Cloud Raxak, CloudBerry (Media Sponsor), Cloudbric, Coalfire Systems, CollabNet, Inc. (Silver Sponsor), Column Technologies, Commvault (Bronze Sponsor), Connect2.me, ContentMX (Bronze Sponsor), CrowdReviews (Media Sponsor) CyberTrend (Media Sponsor), DataCenterDynamics (Media Sponsor), Delaplex, DICE (Bronze Sponsor), EastBanc Technologies, eCube Systems, Embotics, Enzu Inc., Ericsson (Gold Sponsor), FalconStor, Formation Data Systems, Fusion, Hanu Software, HGST, Inc. (Bronze Sponsor), Hitrons Solutions, IBM BlueBox, IBM Bluemix, IBM Cloud (Platinum Sponsor), IBM Cloud Data Services/Cloudant (Platinum Sponsor), IBM DevOps (Platinum Sponsor), iDevices, Industrial Internet of Things Consortium (Association Sponsor), Impinger Technologies, Interface Masters, Intel (Keynote Sponsor), Interoute (Bronze Sponsor), IQP Corporation, Isomorphic Software, Japan IoT Consortium, Kintone Corporation (Bronze Sponsor), LeaseWeb USA, LinearHub, MangoApps, MathFreeOn, Men & Mice, MobiDev, New Relic, Inc. (Bronze Sponsor), New York Times, Niagara Networks, Numerex, NVIDIA Corporation (AI Session Sponsor), Object Management Group (Association Sponsor), On The Avenue Marketing, Oracle MySQL, Peak10, Inc., Penta Security, Plasma Corporation, Pulzze Systems, Pythian (Bronze Sponsor), Cosmos, RackN, ReadyTalk (Silver Sponsor), Roma Software, Roundee.io, Secure Channels Inc., SD Times (Media Sponsor), SoftLayer (Platinum Sponsor), SoftNet Solutions, Solinea Inc., SpeedyCloud, SSLGURU LLC, StarNet, Stratoscale, Streamliner, SuperAdmins, TechTarget (Media Sponsor), TelecomReseller (Media Sponsor), Tintri (Welcome Reception Sponsor), TMCnet (Media Sponsor), Transparent Cloud Computing Consortium, Veeam, Venafi, Violin Memory, VAI Software, Zerto
About SYS-CON Media & Events
SYS-CON Media (www.sys-con.com) has since 1994 been connecting technology companies and customers through a comprehensive content stream - featuring over forty focused subject areas, from Cloud Computing to Web Security - interwoven with market-leading full-scale conferences produced by SYS-CON Events. The company's internationally recognized brands include among others Cloud Expo® (@CloudExpo), Big Data Expo® (@BigDataExpo), DevOps Summit (@DevOpsSummit), @ThingsExpo® (@ThingsExpo), Containers Expo (@ContainersExpo) and Microservices Expo (@MicroservicesE).
Cloud Expo®, Big Data Expo® and @ThingsExpo® are registered trademarks of Cloud Expo, Inc., a SYS-CON Events company.
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