computer science

Network Performance Monitoring Solution

Network Performance Monitoring Solution is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Network Performance Monitoring Solution rather than just read about it. In short: Network Performance Monitor (NPM) in Operations Management Suite, a component of Microsoft Azure, monitors network performance between office sites, data centers, clouds and applications in near real-time. It helps a network administrator locate and troubleshoot bottlenecks like network delay, data loss and availability of any network link across on-premises networks, Microsoft Azure VNets, Amazon Web Services VPCs…

Key takeaways

Network Performance Monitoring Solution belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Network Performance Monitoring Solution to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Network Performance Monitoring Solution from memory before moving on to harder problems.

Reference excerpt

Network Performance Monitor (NPM) in Operations Management Suite, a component of Microsoft Azure, monitors network performance between office sites, data centers, clouds and applications in near real-time. It helps a network administrator locate and troubleshoot bottlenecks like network delay, data loss and availability of any network link across on-premises networks, Microsoft Azure VNets, Amazon Web Services VPCs, hybrid networks, VPNs or even public internet links.

Network Performance Monitor Network Performance Monitor (NPM) is network monitoring from the Operations Management Suite, that monitors networks. NPM monitors the availability of connectivity and quality of connectivity between multiple locations within and across campuses, private and public clouds. It uses synthetic transactions to test for reachability and can be used on any IP network irrespective of the make and model of network routers or switches deployed.

Features A dashboard is generated to display summarized information about the Network including Network health events, alleged unhealthy Network links, and the Subnetwork links with the most loss and most latency. Custom dashboards can also be created to find the state of the network at a point in time in history. An interactive topology map is also generated to show the routes between Nodes. Network administrator can use it to distinguish the unhealthy path to find out the root cause of the issue. Alerts can be configured to send e-mails to stakeholders when a threshold is reached.

Use Cases Two on-premises networks: Monitor connectivity between two office sites which could be connected using an MPLS WAN link or VPN Multiple sites: Monitor connectivity to a central site from multiple sites. For example, scenarios where users from multiple office locations are accessing applications hosted at a central location Hybrid Networks: Monitor connectivity between on-premises and Azure VNets that could be connected using S2S VPN or ExpressRoute Multiple Virtual Networks in Cloud: Monitor connectivity between multiple VNets in the same or different Azure regions. These could be peered V-Nets or V-nets connected using a VPN. Any Cloud: Monitor connectivity between Amazon Web Services and on-premises Networks. And also between Amazon Web Services and Azure V-Nets.

Operation It does not require any access to network devices. Microsoft Monitoring Agent (MMA) or OMS extension (valid only for Virtual machines hosted in Azure) is to be installed on the servers in the Subnetworks that are to be monitored.

OMS Agent auto downloads the Network Monitoring Intelligence Packs which spawns an NPM agent that detects the subnets it is connected to and this information is sent to OMS. NPM Agent gets to know the list of the IP addresses of other agents from OMS. NPM Agent IP starts active probes using Internet Control Message Protocol (ICMP) or Transmission Control Protocol (TCP) Ping and the roundtrip time for a ping between two nodes is used to calculate network performance metrics such as packet loss and link latency. This data is pushed to OMS where it's used to create a customizable dashboard. A video-based demo of NPM is available online.

Synthetic transactions NPM uses synthetic transactions to test for reachability and calculate network performance metrics across the network. Tests are performed using either TCP or ICMP and users have the option of choosing between these protocols. Users must evaluate their environments and weigh the pros and cons of the protocols. The following is a summary of the differences.

TCP provides more accurate results compared to ICMP ECHO because routers and switches assign lower priority to ICMP ECHO packets compared to TCP Ping. TCP needs configuration of network firewall and local firewall on the computers where agents are installed to allow traffic on default port 8084. Some other ports can also be chosen for this. ICMP does not need to configure a firewall but it needs more agents to provide information about all the paths between two subnets. Consequently, the OMS agent must be installed on more machines in the subnet as compared to when TCP is used.

Timeline February 27, 2017 NPM Solution became generally available (GA). The launch was picked up by eWeek

July 27, 2016 NPM solution was announced in the Public Preview

Operating systems supported

Windows Server 2008 SP 1 or later

Linux distributions CentOS Linux 7 RedHat Enterprise Linux 7.2 Ubuntu 14.04 LTS, 15.04, 16.04 LTS Debian 8 SUSSUSE LinuxE Linux Server 12

Client operating systems Windows 7 SP1 or later

Availability in regions Network Performance Monitor is available in the following Azure regions:

Eastern US Western Europe South East Asia South East Australia West Central US South UK US Gov Virginia

Data collection frequency TCP handshakes every 5 seconds, data sent every 3 minutes

References

Worked examples

Example 1 — a first encounter with Network Performance Monitoring Solution

Start with the simplest possible case. Write down what Network Performance Monitoring Solution claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Network Performance Monitoring Solution before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Network Performance Monitoring Solution ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Network Performance Monitoring Solution

In research: Network Performance Monitoring Solution appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Network Performance Monitoring Solution in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Network Performance Monitoring Solution is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer performance, Network performance, Network software, so understanding it makes those chapters shorter.
In everyday life: Look for Network Performance Monitoring Solution outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Network Performance Monitoring Solution in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Network Performance Monitoring Solution means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Network Performance Monitoring Solution out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Network Performance Monitoring Solution in simple terms?

Why does Network Performance Monitoring Solution matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Network Performance Monitoring Solution?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Network Performance Monitoring Solution.