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Lab Zero: A First Experiment using GENI. Sarah Edwards GENI Project Office. Hands On Exercise. Do a Simple Experiment in GENI Reserve two VMs connected at Layer 2. VM. VM. Layer 2. Understand GENI Terminology. project. slice. experimenter. resource. aggregate. - PowerPoint PPT Presentation
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Sponsored by the National Science Foundation
Lab Zero:A First Experiment using GENI
Sarah Edwards
GENI Project Office
Sponsored by the National Science Foundation 2GENI Lab Zero: last updated Aug 6, 2013
Hands On Exercise
Do a Simple Experiment in GENI
Reserve two VMs connected at Layer 2
Layer 2VMVM
Sponsored by the National Science Foundation 3GENI Lab Zero: last updated Aug 6, 2013
Understand GENI Terminology
slice project
aggregate
experimenter
resource
Sponsored by the National Science Foundation 4GENI Lab Zero: last updated Aug 6, 2013
Use the GENI Portal and Flack
Sponsored by the National Science Foundation 5GENI Lab Zero: last updated Aug 6, 2013
Experiment Workflow• Part I: Design/Setup
• Part II: Execute
• Part III: Finish
Sponsored by the National Science Foundation 6GENI Lab Zero: last updated Aug 6, 2013
The GENI Portal is…
A web-based tool for experimenters to manage
experimenters, projects, and slices.
Includes simple tools to reserve resources.
More to come in the future.
Sponsored by the National Science Foundation 7GENI Lab Zero: last updated Aug 6, 2013
Flack is …
A graphical user interface (GUI) for: – designing topologies in GENI– reserving resources in GENI
Sponsored by the National Science Foundation 8GENI Lab Zero: last updated Aug 6, 2013
Experimenter
An experimenter is a researcher who uses GENI resources
Different types of experimenters have different roles and permissions:• Advisor vs Grad Student• Teacher vs TA vs Student Experimenter
Sponsored by the National Science Foundation 9GENI Lab Zero: last updated Aug 6, 2013
Projects
Projects organize research in GENI
Project
Lead
Members
Slice
Projects contain both people and their experiments
A project is led by a single responsible individual: the project lead
Today we will use a project created for this class
where the project lead is the instructor of this class
Sponsored by the National Science Foundation 11GENI Lab Zero: last updated Aug 6, 2013
Experiment Workflow• Part I: Design/Setup
• Part II: Execute
• Part III: Finish
Sponsored by the National Science Foundation 12GENI Lab Zero: last updated Aug 6, 2013
Part I: Establish Management Environment
1 Pre-work: Design your experiment
2.1 Pre-work: Create a GENI account
2.2 Pre-work: Project lead (aka professor) adds you to project
Project Name: TrainTheTA
2.3 Generate and Download SSH KeypairTutorial instructions:http://groups.geni.net/geni/wiki/GENIEducation/SampleAssignments/LabZero/Procedure
Sponsored by the National Science Foundation 13GENI Lab Zero: last updated Aug 6, 2013
Creating a GENI account
• GENI Portal is at:
https://portal.geni.net
• Instructions for creating an account are:
http://groups.geni.net/geni/wiki/SignMeUp
Sponsored by the National Science Foundation 14GENI Lab Zero: last updated Aug 6, 2013
Using ssh with a public/private keypair
Login to all GENI compute resources using
ssh with a private key
There are several ways to offer your private key to ssh. Today we will use a tool called an ssh agent.
$ ssh-add ~/.ssh/id_geni_ssh_rsa $ ssh username@hostname -p 12345
You should never be prompted for a password to log into a GENI compute node.
If you are, something has always gone wrong.
No password!
Sponsored by the National Science Foundation 16GENI Lab Zero: last updated Aug 6, 2013
Expiration and renewal
slice expiration time ≤ project expiration time
each resource expiration time ≤ slice expiration time
each resource expiration time ≤ aggregate’s max expiration
project
slice
resource
(optional)project
expiration timeslice
expiration timeresource
expiration timenow
In general, to extend the lifetime of your resource reservation, you must renew the slice and all resources
resourceresource
You are here
Projects
Slices
Log Messages
HelpProfile
Tools
Map
2
Login
Join Project
Generate SSH Keys
Screenshot
On your local machine…
> mv ~/Downloads/id_geni_ssh_rsa ~/.ssh/.> chmod 600 ~/.ssh/id_geni_ssh_rsa> ssh-add ~/.ssh/id_geni_ssh_rsa
2
Sponsored by the National Science Foundation 20GENI Lab Zero: last updated Aug 6, 2013
Resource
A resource is a piece of infrastructure
A resource can be real or virtual.
Resource specifications (aka. RSpecs) are used to describe and request resources.
Examples:• Compute: computer vs virtual machine (VM)• Wireline Network: VLAN or OpenFlow• Wireless: WiMAX
Sponsored by the National Science Foundation 21GENI Lab Zero: last updated Aug 6, 2013
Aggregate
An aggregate manages a set of reservable resources
Aggregates include:GENI racks
OpenFlow
WiMAX
InstaGENI Rack ExoGENI Rack
Sponsored by the National Science Foundation 22GENI Lab Zero: last updated Aug 6, 2013
Slice
A slice is a container of resources used in an experiment.
A slice can contain resources from one or more aggregates
A slice is in a single project
A slice has an expiration
Slice names are public, reusable and unique
Sponsored by the National Science Foundation 23GENI Lab Zero: last updated Aug 6, 2013
Experimenter(aka Student)
Putting it all together
slice
aggregate
project Member:Lead:
Experimenter(aka Professor)
Layer 2resourceresource
Sponsored by the National Science Foundation 24GENI Lab Zero: last updated Aug 6, 2013
slice
Part I continued:Obtain Resources
3.1 Create a slice
3.2 (optional) Renew your slice
3.3 Reserve two VMs at on aggregate
3.4 Check Whether VMs are Ready to be Used
Layer 2VMVM
3.1
Create Slice
Extend slice expiration
3.2
LaunchFlack
3.3
LaunchFlack
username slice name
all availableaggregates
3.3
Draw two VMs connected by a link
3.3
Change names of VMs
3.3
If using ExoGENI resources, set size
of VM to small
3.3
Set IP and mask of interfaces
Reserve resources
3.3
Resources are READY!!!
3.4 Screenshot
Sponsored by the National Science Foundation 34GENI Lab Zero: last updated Aug 6, 2013
Experiment Workflow• Part I: Design/Setup
• Part II: Execute
• Part III: Finish
Sponsored by the National Science Foundation 35GENI Lab Zero: last updated Aug 6, 2013
Part II: Execute Experiment
4.1 Login to nodes (two nodes: client & server)
4.2 Download and compile experiment software
5 Execute experiment5.1 Send IP Traffic
5.2 Disable IP and send Layer 2 (non-IP) Traffic
6.1 Logout of nodes
Internet
Data Interfaces
Control Interfaces
ssh
Layer 2
Experimenter
serverclient
Login4.1
$ wget …/pingPlus-0.2.tar.gz$ tar xvfz pingPlus-0.2.tar.gz$ apt-get update $ apt-get install build-essential$ cd pingPlus-0.2 $ make
$ setenv PATH $PATH\:/sbin$ ifconfig
$ wget …/pingPlus-0.2.tar.gz$ tar xvfz pingPlus-0.2.tar.gz$ apt-get update $ apt-get install build-essential$ cd pingPlus-0.2 $ make
$ setenv PATH $PATH\:/sbin$ ifconfig
server
client
4.2
5.1
Worksheet
Client
Control Interface
Name eth ___
IP Address __ . __ . __ . __
Data Interface
Name eth ___
IP Address 10 . 11 . 1 . 1
Subnet Mask 255 . 255 . 255 . 0
Server
Control Interface
Name eth ___
IP Address __ . __ . __ . __
Data Interface
Name eth ___
IP Address 10 . 11 . 1 . 2 /24
Subnet Mask 255 . 255 . 255 . 0
MAC Address __ : __ : __ : __ : __ : __
Project Name: TrainTheTASlice Name: geni<initials>
EtherType: 11001
5.1
# should SUCCEED$ ping 10.11.1.2 –c 5
# disable IP on your nodes$ service neuca stop$ sudo ifconfig eth1726 0.0.0.0
# should FAIL$ ping 10.11.1.2 –c 5
# start L2 client$ sudo pingPlus 01:02:03:04:05:06 eth1726 19001
$ exit
# disable IP on your nodes$ service neuca stop$ sudo ifconfig eth1726 0.0.0.0
# start L2 server
$ sudo pingPlusListener 11001
$ exit
serverclient
5.1
5.2
6.1
Screenshot
Sponsored by the National Science Foundation 42GENI Lab Zero: last updated Aug 6, 2013
Experiment Workflow• Part I: Design/Setup
• Part II: Execute
• Part III: Finish
Sponsored by the National Science Foundation 43GENI Lab Zero: last updated Aug 6, 2013
Part III: Finish Experiment
When your experiment is done, you should always release your resources.
– Normally this is when you would archive your data– Delete your resources at each aggregate
sliceproject
aggregateexperimenter
resource
Delete Resources
7
Sponsored by the National Science Foundation 45GENI Lab Zero: last updated Aug 6, 2013
Congratulations!
You have…–Run your first GENI Experiment!–Exercised your knowledge of GENI
terminology–Used the GENI Portal and Flack
Sponsored by the National Science Foundation 46GENI Lab Zero: last updated Aug 6, 2013
Welcome to GENI!
Keep experimenting!
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