computer science

Northern Lights Local Exchange Point

Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point rather than just read about it. In short: The Northern Lights Local Exchange Point (NLLXP) is a free Internet Exchange Point (IXP) in Minneapolis, Minnesota, in the United States. The NLLXP public peering exchange is closely linked with the Northern Lights GigaPoP (NLG), an Internet2 project of the University of Minnesota Office of Information and Technology: the NLG is the regional Internet2 access point for research and educational institutions, and the N…

Key takeaways

Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Northern Lights Local Exchange Point from memory before moving on to harder problems.

Reference excerpt

The Northern Lights Local Exchange Point (NLLXP) is a free Internet Exchange Point (IXP) in Minneapolis, Minnesota, in the United States. The NLLXP public peering exchange is closely linked with the Northern Lights GigaPoP (NLG), an Internet2 project of the University of Minnesota Office of Information and Technology: the NLG is the regional Internet2 access point for research and educational institutions, and the NLLXP is the regional peering exchange between those institutions and commercial networks, and among commercial networks. As of August 23, 2008 there were 22 members participating in the NLLXP, advertising 439 unique BGP routes from 93 originating autonomous systems. NLLXP participants include Internet content creators, Internet service hosting providers, and Internet access providers.

Technology The core of the Northern Lights Local Exchange Point (NLLXP) is a single Juniper Networks T640 router, acting as a Layer-3 IXP. Similar to at IXPs using a route reflector, each member peers with the IXP's autonomous system, making member BGP configurations simple to configure and maintain. The NLLXP core router is located at 90 Church Street, on the campus of the University of Minnesota. Using Metro Ethernet, the NLLXP has been extended to an Ethernet switch located in the Minnesota Gateway colocation facility, where many metro-area members connect. Cross-connects from the NLLXP Ethernet switch are available within the Minnesota Gateway colocation facility. Extensions of these cross-connects to other locations using Metro Ethernet or intercity managed wavelength are available from several carriers.

See also List of Internet exchange points

References

External links Official NLLXP contact form NLLXP member list UMN OIT announces NLLXP, May 2000 Orbis Internet becomes first NLLXP member, May 2000

Worked examples

Example 1 — a first encounter with Northern Lights Local Exchange Point

Start with the simplest possible case. Write down what Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point

In research: Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point 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: Northern Lights Local Exchange Point is common in secondary-school and first-year university syllabi. It links to neighbouring topics Internet exchange points in the United States, Network access, so understanding it makes those chapters shorter.
In everyday life: Look for Northern Lights Local Exchange Point 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Northern Lights Local Exchange Point in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Northern Lights Local Exchange Point in simple terms?

Why does Northern Lights Local Exchange Point 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 Northern Lights Local Exchange Point?

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 Northern Lights Local Exchange Point.