PBR-LB - Direct Server Return Load Balancing using Policy Based Routing
(MEMO)
07 Feb, 2013
SAKURA Internet Research Center
Senior Researcher / Naoto MATSUMOTO
Configuring GRE Tunnel Through a Cisco ASA FirewallHarris Andrea
As you might know, Cisco ASA can not terminate GRE tunnels. However, you can pass GRE traffic through a Cisco ASA 5500 firewall as described in this tutorial.
Configuring GRE Tunnel Through a Cisco ASA FirewallHarris Andrea
As you might know, Cisco ASA can not terminate GRE tunnels. However, you can pass GRE traffic through a Cisco ASA 5500 firewall as described in this tutorial.
Networking Tutorial Goes to Basic PPP Configuration3Anetwork com
Leading Cisco networking products distributor-3network.com
Here we will be going over Basic Configuration of PPP (Point-to-Point Protocol). It includes Basic Configuration tasks on a router, configuring OSPF routing protocol, and configuring PPP PAP and CHAP authentication
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
Networking Tutorial Goes to Basic PPP Configuration3Anetwork com
Leading Cisco networking products distributor-3network.com
Here we will be going over Basic Configuration of PPP (Point-to-Point Protocol). It includes Basic Configuration tasks on a router, configuring OSPF routing protocol, and configuring PPP PAP and CHAP authentication
Cisco CCNA Training/Exam Tips that are helpful for your Certification Exam!
To be Cisco Certified please Check out:
http://asmed.com/information-technology-it/
How to install OpenStack MITAKA --allinone - cheat sheet -Naoto MATSUMOTO
How to install OpenStack MITAKA --allinone - cheat sheet -
27-Jun, 2016
SAKURA Internet, Inc. / SAKURA Internet Research Center
Senior Researcher / Naoto MATSUMOTO
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)Naoto MATSUMOTO
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
20-Feb-2015
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
Slides of our CoNEXT'19 presentation of "RSS++: load and state-aware receive side scaling", a technique to insure a good load-balancing among multiple cores of a server for networking application.
Subnetting Properly subnet addressing blocks to accommodate the sit.pdfebrahimbadushata00
Subnetting: Properly subnet addressing blocks to accommodate the site\'s VLAN sizes. You will
not need to implement VLANs here; rather, you will create the correct sizing to properly
accommodate the devices stated per the xACME educational topology. Carefully consider the
challenges faced when structuring subnets too large and/or too small during your design. The
starting Worchester site addressing range is 10.20.0.0 /16 (per the xACME educational topology
diagram). Formatting per subnet should follow the format below and should be clearly stated and
placed within a table.
NetID
mask/CIDR values
broadcast
usable range
No additional device configurations required to complete
Existing VLANs
-
Remote locations vary in terms of size and requirements. Some implementations will require
current site router/switch-running configurations, which will be provided. All sites will use the
following four VLANs, but you will need to configure only what is asked per site (some
assumptions will be made).
Existing VLANs, per xACME:Faculty VLAN
used by faculty on-site for all office locations (non-instructional communications)
total devices per site will vary
Administrative VLAN
used by staff on-site for business administrative communications
total devices per site will vary
Academic VLAN
used by faculty and students for classroom labs and instructional communications
total devices per site will vary
Server VLAN
used by IT staff for all technology/management communications
total devices per site will vary
The types of devices per site will be the same; however, the number of deployed devices may
vary (all documented in the xAcme educational topology).
Routers Per Site:
Switches Per Site:
Note:Device type will not impact your configuration commands and implementation of ALL
required technologies will use Cisco IOS commands/concepts learned in our TestOut lecture(s).
Standard switchports will be configured and used as trunk OR access ports, and DCE ends
should be noted when configuring serial ports per router.Cisco 2800 Series Integrated
ServicesInterfaces Ports Available4 Fast Ethernet Interfaces
(Per Router)2 Serial Interfaces
(Per Router)fa0/0s0/0/0fa0/1s0/0/1fa1/0fa1/1 Acme Educational Topology Public Address
Range 165.128.63.0 /26 Private Network 10.0.0.0 /8 Boston Site Administrative VLA structional
VLAN Device List 4 Devices 34 Devices Network 10.10.0.0 Switches: Catalyst 6500 Series
Server VLAN Faculty VLAN Devices 5 Devices 96 Gigabit Ports fa010 Mod 220 Total Hosts
Module 2.gl1j1 gl n Stub Area Module 3 gi2u1-g gi012 Boston, MA Module 4 31-g 3/24 Site
Router 2 Router 2800 Series Integrated Services Sacramento. SWTch1 Sacramento SWRch2 Sac
3 024 ta0A0 Pot Contuurations uper Router 4 Fast Ethernet erfaces Sacramento Site 010
Network 10.50.0.0 2- fa011 fa 100 42 Total Hosts 65.128.63. Stub Area Boston, 2 Serial
Interfaces Route Boston, MA Site Router 3 DCE Sacramento, CA 0.255.25 48 30 0,255 .252 130
Internet Faculty VLAN Worchester Site 21 Devices Network.
Intelligent Network Services through Active Flow ManipulationTal Lavian Ph.D.
Active Flow Manipulation Abstractions:
Aggregate data into traffic flows
Flows whose characteristics can be identified in real-time
E.g., “all UDP packets to a particular service”, “all TCP packets from a particular machine”.
Actions to be performed in the traffic flows
Actions that can be performed in real-time
E.g., “Change the priority of all traffic destined to a particular service on a particular machine”, “Stop all traffic out of a particular link of a router”.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefit’s both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
JMeter webinar - integration with InfluxDB and Grafana
PBR-LB - Direct Server Return Load Balancing using Policy Based Routing (MEMO)
1. 07 Feb, 2013
SAKURA Internet Research Center
Senior Researcher / Naoto MATSUMOTO
2. What is PBR-LB?
1) PBR-LB (Policy Based Router–Load Balancing) is forcusing Server Scale-Out Tech.
- Breaking L2DSR(Layer 2 Direct Server Return) Limitation.
- without NAT.
- without DSCP modify (e.g. Layer 3 Direct Server Return mechanism).
- Add Tunneling Capabiltiy.
- Do not add/modify Server kernel modules.
- using Policy Based Routing Functionality on Newest Software Router.
3. How does it works.
5) Layer 3 Direct Server Return
SERVER
eth0:10.0.0.1/32
lo:A.A.A.A/32
Internet
1) Incommig Traffic 4) Nexthop Traffic
Policy Table
SRC PORT DST ADDR NEXTHOP-TABLE
1-10,000 A.A.A.A 0.0.0.0/0 -> 10.0.0.1
10,001-20,000 A.A.A.A 0.0.0.0/0 -> 10.0.0.2
20,001-30,000 A.A.A.A 0.0.0.0/0 -> 10.0.0.3
: : :
Policy Router
(VyattaCore 6.5R1 on x86 Commodity Hardware)
2) Policy Table Lookup / 3) Rewrite L3-NextHop
*Reference: L3DSR – Overcoming Layer 2 Limitations of Direct Server Return Load Balancing. Jan Schaumann, Systems Architect (NANOG51),
VYATTA, INC. Policy Based Routing REFERENCE GUIDE. (6.5R1 v01)
SOURCE: SAKURA Internet Research Center. 02/2013 Project THORN.
4. PBR-LB Configuration.
SRC PORT DST ADDR NEXTHOP-TABLE
1-10,000 A.A.A.A 0.0.0.0/0 -> 10.0.0.1
10,001-20,000 A.A.A.A 0.0.0.0/0 -> 10.0.0.2
: : :
Policy Router
(VyattaCore 6.5R1 on x86 Commodity Hardware)
vyatta$ configuration
# set policy route SRC-PORT-SLB rule 11 destination address A.A.A.A
# set policy route SRC-PORT-SLB rule 11 protocol tcp_udp
# set policy route SRC-PORT-SLB rule 11 set table 11
# set policy route SRC-PORT-SLB rule 11 source port 1-10000
# set protocols static table 10 route 0.0.0.0/0 next-hop 10.0.0.1
# set policy route SRC-PORT-SLB rule 12 destination address A.A.A.A
# set policy route SRC-PORT-SLB rule 12 protocol tcp_udp
# set policy route SRC-PORT-SLB rule 12 set table 12
# set policy route SRC-PORT-SLB rule 12 source port 10001-20000
# set protocols static table 12 route 0.0.0.0/0 next-hop 10.0.0.2
:
# set interfaces ethernet eth0 policy route SRC-PORT-SLB
# commit
# save
*Reference: VYATTA, INC. Policy Based Routing REFERENCE GUIDE. (6.5R1 v01)
5. in more detail.
$ show version
Version: VC6.5R1
Description: Vyatta Core 6.5 R1
:
$ show policy route
$ show policy route statistics
...etc