# calculator

Published articles for calculator.

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## Introducing the J2sw MTU and Encapsulation Calculator

DevFeed: [Introducing the J2sw MTU and Encapsulation Calculator](<https://devfeed.tech/articles/introducing-the-j2sw-mtu-and-encapsulation-calculator-40186.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/resources/mtu-encapsulation-calculator/>)

Author: j2sw

Published: 2026-07-28T16:37:53Z

Content type: tutorial

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [Network](<https://devfeed.tech/topics/network.md>), [Tool](<https://devfeed.tech/topics/tool.md>), [Ethernet](<https://devfeed.tech/topics/ethernet.md>), [VXLAN](<https://devfeed.tech/topics/vxlan.md>)

Tags: [calculator](<https://devfeed.tech/tags/calculator.md>), [cisco](<https://devfeed.tech/tags/cisco.md>), [ethernet](<https://devfeed.tech/tags/ethernet.md>), [fragmentation](<https://devfeed.tech/tags/fragmentation.md>), [gre](<https://devfeed.tech/tags/gre.md>), [headers](<https://devfeed.tech/tags/headers.md>), [ipsec](<https://devfeed.tech/tags/ipsec.md>), [ipv4](<https://devfeed.tech/tags/ipv4.md>), [ipv6](<https://devfeed.tech/tags/ipv6.md>), [juniper](<https://devfeed.tech/tags/juniper.md>), [mikrotik](<https://devfeed.tech/tags/mikrotik.md>), [mpls](<https://devfeed.tech/tags/mpls.md>), [mtu](<https://devfeed.tech/tags/mtu.md>), [network-engineering-resources](<https://devfeed.tech/tags/network-engineering-resources.md>), [network-tools](<https://devfeed.tech/tags/network-tools.md>), [network-troubleshooting](<https://devfeed.tech/tags/network-troubleshooting.md>), [overhead](<https://devfeed.tech/tags/overhead.md>), [payload](<https://devfeed.tech/tags/payload.md>), [pppoe](<https://devfeed.tech/tags/pppoe.md>), [vlan](<https://devfeed.tech/tags/vlan.md>), [vxlan](<https://devfeed.tech/tags/vxlan.md>)

### AI overview

The article introduces the J2SW MTU and Encapsulation Calculator, which estimates inner IP MTU and required underlay MTU for combinations of PPPoE, GRE, VLAN, MPLS, VXLAN, and other encapsulations. It explains how Layer 2 tags affect Ethernet frame size separately from IP MTU and describes overhead calculations, including cases where fragmentation can be avoided.

### Source excerpt

Ever wondered what the effects of different combinations of PPPoE, GRE, and others have on the MTU of a packet? I am excited to announce the first of many J2 Network tools: the J2SW MTU and Encapsulation Calculator. You select the service MTU and the encapsulation used on the path. The calculator then works out ... Read more The post Introducing the J2sw MTU and Encapsulation Calculator appeared first on Justin Wilson (j2sw).

## Bonds and the Ten Year Interest Rate

DevFeed: [Bonds and the Ten Year Interest Rate](<https://devfeed.tech/articles/bonds-and-the-ten-year-interest-rate-36272.md>)

Original publisher: [Read original article](<https://berthub.eu/articles/posts/bonds-and-the-ten-year-interest-rate/>)

Published: 2022-10-31T12:29:37Z

Content type: article

Language: en

Sources: [Bert Hubert's writings](<https://devfeed.tech/sources/bert-hubert-s-writings.md>)

Topics: [Benchmark](<https://devfeed.tech/topics/benchmark.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>)

Tags: [benchmark](<https://devfeed.tech/tags/benchmark.md>), [calculator](<https://devfeed.tech/tags/calculator.md>), [data](<https://devfeed.tech/tags/data.md>), [finance](<https://devfeed.tech/tags/finance.md>), [financial](<https://devfeed.tech/tags/financial.md>)

### AI overview

This article explains how the ten-year interest rate is derived from government bond yields. It emphasizes that the benchmark is not a directly measured physical quantity: the reference bond can change, suitable bonds may be unavailable, and calculating the rate requires solving an equation iteratively. The article includes a built-in calculator and notes that it is not investment advice.

### Source excerpt

So in these wild times, the "ten year interest rate" is suddenly in the news again. But what does this mean? There is no committee that sets these rates, but it is also not something you can just measure. While you'll find various other explanations of how to calculate the 10 year interest rate online, this may be the geekiest one, and definitely is the only one with a built-in calculator.