TOFFEEプロジェクト
ホームドキュメンテーション更新ビデオ研究ダウンロードスポンサー接触


DOCUMENTATION 》 TOFFEE-Mocha Documentation :: TOFFEE-Mocha - Jitter feature

We need sometimes a distorted test WAN bandwidth since this may occur in real WAN Network due to various reasons. This effect will persist back-and-forth and will affect the WAN Bandwidth. And this is what called as Jitter. The frequency of this irregularity will depend on the problem which the WAN Network experiencing, speed of the WAN Network, packet corruption, packet drops and so on. So to simulate the same I have introduced the new Jitter feature in the TOFFEE-Mocha WAN Simulator. This enables you to throttle the bandwidth almost like a frequency modulated signal. So when Jitter delay is set in TOFFEE-Mocha and you diagnose the network performance graphs, you should get a graph with these characteristics.
signal modulation

My lab test topology: Here is my test lab topology in which TOFFEE-Mocha is deployed. It is connected to my external LAN Network via pfSense router installed as a VM. And along with the same, I have installed TOFFEE-Mocha test/build system and to which a test PC is connected. So the idea is to get network connectivity (external LAN network, host-PC, and Internet) to this test PC via TOFFEE-Mocha and via pfSense router.
TOFFEE-Mocha LAB test Topology [CDN]
If you are more interested about my test VM Lab setup/network kindly watch these videos:

Here is my VirtualBox VM installed machines. Notice the machines which are booted:

  • pfSense router
  • TOFFEE-Mocha device
  • test PC

01 TOFFEE-Mocha WAN Emulator Jitter Feature VirtualBox VMs [CDN]

Here is my TOFFEE-Mocha port configuration:
02 TOFFEE-Mocha WAN Emulator Jitter Feature port configuration

Here are my TOFFEE-Mocha Jitter feature settings. So technically it should flip-flop between 10-15 ms delay with a jitter factor of about 20. Jitter factor works like frequency. Lesser the jitter factor value more is its frequency (flip-flops between the two states) and larger the value lesser the frequency.
03 TOFFEE-Mocha WAN Emulator Jitter Feature configuration [CDN]

Here is my test PC where I managed to mount the remote SMB share(which is my host PC :: 192.168.0.88). And then I started file copy of this test tar-ball(a large sample file around 3GB) from this SMB share to this local VM test PC as shown below. The data-transfer of this file-copy operation should happen via pfSense Router and the TOFFEE-Mocha WAN emulator VM machines.
04 TOFFEE-Mocha WAN Emulator Jitter Feature test PC with mounted remote SMB share [CDN]
05 TOFFEE-Mocha WAN Emulator Jitter Feature test PC copying large file from remote SMB share

When we analyze the traffic via pfSense web GUI (connected via management port of the TOFFEE-Mocha device), you can see the traffic pattern. Basically it should flip-flop between two states. The high-bandwidth state is bit shorter than low bandwidth since most of the data gets transferred during this short span of time versus the longer/max delay jitter delay state. For demonstration purposes I set a large jitter factor (frequency). If you want you can adjust this parameter to a much lower value for higher frequencies.
06 TOFFEE-Mocha WAN Emulator Jitter Feature traffic analysis via pfSense [CDN]

Now by adjusting the jitter range min/max micro-seconds/milli-seconds delay parameters you get a different bandwidth curve in pfSense as shown below.
07 TOFFEE-Mocha WAN Emulator Jitter Feature adjusting jitter range max and min delays

08 TOFFEE-Mocha WAN Emulator Jitter Feature adjusting jitter range max and min delays pfsense analysis

Here is my live demo video of the new TOFFEE-Mocha Jitter feature:



Suggested Topics:


TOFFEE-Mocha - WAN Emulator


Categories

💎 TOFFEE-MOCHA new bootable ISO: Download
💎 TOFFEE Data-Center Big picture and Overview: Download PDF


おすすめトピック:

CDN Hosting ↗
Tuesday' 04-Aug-2020
It is quite interesting that there are few web hosting firms are offering direct CDN based hosting services. Since it is a direct CDN based hosting, it is cheap, extremely easy or transparent CDN service. It is transparent, since each time you publish your content in the hosting web-server (origin server), it is immediately is in sync automatically in the user-serving CDN caching machines. Since the hosting vendor and the CDN vendor are all the same, it is also easy to use their services. There is no incompatibility issues, interoperability issues, and better integrated analytics, are all the benefits of CDN Hosting services.

Recording Lab Monthly off-grid power-consumption readings for research ↗
Tuesday' 04-Aug-2020

Introducing TOFFEE-Fudge - Network Packet Generator ↗
Tuesday' 04-Aug-2020
TOFFEE Fudge is a simple intuitive Network Packet Generator which can be used to create custom test synthetic Network Packets and can be used in various applications such as networking research, network infrastructure troubleshooting, ethical hacking, as a network software development tool and so on.

Building my own CDN - choosing a web-hosting to deploy my CDN - Update: 28-July-2016 ↗
Tuesday' 04-Aug-2020
The TOFFEE Project website is hosted on Inmotion Hosting. And so I am looking for alternate hosting provider to build my first CDN node. My plan is to make multiple sub-domains of my website such as cdn1.the-toffee-project.org, cdn2.the-toffee-project.org and point each of this corresponding subdomain(s) to various alternative web hosting servers geographically spread across the world. Sometimes choosing the same vendor for multiple CDN nodes may result multiple servers existing in the data-center. And this becomes an issue if there is some catastrophic network disaster.

Moon Base and Space Colonization - First we need fast InterPlanetary Internet ↗
Tuesday' 04-Aug-2020

My Lab Battery Purchase and Service logs for Research ↗
Tuesday' 04-Aug-2020
Here is a complete log of my lab battery purchase, service record which I maintain in Google drive. These I use for my home (or my family generic use) as well as a part of my home lab. I maintain a detailed log this way to monitor the failure rate of these batteries. This will allow me to select a specific brand/model which has higher success rate and to monitor any premature failure/expiry. The service log helps me to monitor and schedule the next service routine so that I can maintain these batteries in tip-top condition.

Youtubeで見る - [285//0] WAN Optimization iPhone and Android - Mobile Apps ↗


CDN Hosting ↗
Tuesday' 04-Aug-2020
It is quite interesting that there are few web hosting firms are offering direct CDN based hosting services. Since it is a direct CDN based hosting, it is cheap, extremely easy or transparent CDN service. It is transparent, since each time you publish your content in the hosting web-server (origin server), it is immediately is in sync automatically in the user-serving CDN caching machines. Since the hosting vendor and the CDN vendor are all the same, it is also easy to use their services. There is no incompatibility issues, interoperability issues, and better integrated analytics, are all the benefits of CDN Hosting services.

Recording Lab Monthly off-grid power-consumption readings for research ↗
Tuesday' 04-Aug-2020

Introducing TOFFEE-Fudge - Network Packet Generator ↗
Tuesday' 04-Aug-2020
TOFFEE Fudge is a simple intuitive Network Packet Generator which can be used to create custom test synthetic Network Packets and can be used in various applications such as networking research, network infrastructure troubleshooting, ethical hacking, as a network software development tool and so on.

Building my own CDN - choosing a web-hosting to deploy my CDN - Update: 28-July-2016 ↗
Tuesday' 04-Aug-2020
The TOFFEE Project website is hosted on Inmotion Hosting. And so I am looking for alternate hosting provider to build my first CDN node. My plan is to make multiple sub-domains of my website such as cdn1.the-toffee-project.org, cdn2.the-toffee-project.org and point each of this corresponding subdomain(s) to various alternative web hosting servers geographically spread across the world. Sometimes choosing the same vendor for multiple CDN nodes may result multiple servers existing in the data-center. And this becomes an issue if there is some catastrophic network disaster.



Featured Educational Video:
Youtubeで見る - [44//0] 0xd Failed FreeNAS ZFS RAID-Z2 Debug | VLOG | #TheFreeBSDChannel #FreeBSD #NAS ↗

CDN Hosting ↗
Tuesday' 04-Aug-2020
It is quite interesting that there are few web hosting firms are offering direct CDN based hosting services. Since it is a direct CDN based hosting, it is cheap, extremely easy or transparent CDN service. It is transparent, since each time you publish your content in the hosting web-server (origin server), it is immediately is in sync automatically in the user-serving CDN caching machines. Since the hosting vendor and the CDN vendor are all the same, it is also easy to use their services. There is no incompatibility issues, interoperability issues, and better integrated analytics, are all the benefits of CDN Hosting services.

Recording Lab Monthly off-grid power-consumption readings for research ↗
Tuesday' 04-Aug-2020

Introducing TOFFEE-Fudge - Network Packet Generator ↗
Tuesday' 04-Aug-2020
TOFFEE Fudge is a simple intuitive Network Packet Generator which can be used to create custom test synthetic Network Packets and can be used in various applications such as networking research, network infrastructure troubleshooting, ethical hacking, as a network software development tool and so on.

Building my own CDN - choosing a web-hosting to deploy my CDN - Update: 28-July-2016 ↗
Tuesday' 04-Aug-2020
The TOFFEE Project website is hosted on Inmotion Hosting. And so I am looking for alternate hosting provider to build my first CDN node. My plan is to make multiple sub-domains of my website such as cdn1.the-toffee-project.org, cdn2.the-toffee-project.org and point each of this corresponding subdomain(s) to various alternative web hosting servers geographically spread across the world. Sometimes choosing the same vendor for multiple CDN nodes may result multiple servers existing in the data-center. And this becomes an issue if there is some catastrophic network disaster.



Youtubeで見る - [244//0] CDN Content Delivery Networks - WAN Optimization Techniques - Episode2 ↗

CDN Hosting ↗
Tuesday' 04-Aug-2020
It is quite interesting that there are few web hosting firms are offering direct CDN based hosting services. Since it is a direct CDN based hosting, it is cheap, extremely easy or transparent CDN service. It is transparent, since each time you publish your content in the hosting web-server (origin server), it is immediately is in sync automatically in the user-serving CDN caching machines. Since the hosting vendor and the CDN vendor are all the same, it is also easy to use their services. There is no incompatibility issues, interoperability issues, and better integrated analytics, are all the benefits of CDN Hosting services.



Research :: Optimization of network data (WAN Optimization) at various levels:
Network File level network data WAN Optimization


Learn Linux Systems Software and Kernel Programming:
Linux, Kernel, Networking and Systems-Software online classes [CDN]


Hardware Compression and Decompression Accelerator Cards:
TOFFEE Architecture with Compression and Decompression Accelerator Card


TOFFEE-DataCenter on a Dell Server - Intel Xeon E5645 CPU:
TOFFEE-DataCenter screenshots on a Dual CPU - Intel(R) Xeon(R) CPU E5645 @ 2.40GHz - Dell Server