Bridged Networking - Virtual Environments
by Jorge Fábregas
Hello everyone,
I'm learning about bridged networking and how it is applied to virtual
environments (bypassing all the automation provided by libvirtd etc) .
I have a question regarding ip configuration for the virtual bridge.
Let's say I have a host (my machine) where I want to run 3 VMs bridged
to my home network (thru eth0). I have a DHCP server running on my DSL
router, and I have dhcp enabled on my 3 VMs so they all should get a
lease from the DHCP.
As far as a I know these are the raw steps needed to accomplish this:
1- create br0
2- remove current ip address from eth0
3- enslave eth0 to br0
4- create tap devices
5- attach tap devices to br0
6- assign tap devices to every VM
As you can see I haven't assigned an ip address to the virtual bridge
(br0). Why is it that (on almost any site that I visit with this setup)
they always end up assigning an ip address to br0?
Thanks in advance!
Jorge
10 years, 10 months
Log filling with bogus(?) VLAN-related error message
by Ian Pilcher
My syslog is getting flooded with messages like this:
Nov 19 15:27:16 ian libvirtd: 15:27:16.949: 2725: error :
virInterfaceDefParseXML:807 : XML description for vlan interface misses
the vlan element is not well formed or invalid
I do have tagged VLAN interfaces on the host (br0.1, br0.4, and
br0.251), but none of my VMs are using them. I am not using any
libvirt-managed networks at all:
[pilcher@ian ~]$ sudo virsh net-list --all
Name State Autostart
-----------------------------------------
default inactive no
I am running libvirt-0.8.8-7.fc15.x86_64.
Any ideas?
Thanks!
--
========================================================================
Ian Pilcher arequipeno(a)gmail.com
"If you're going to shift my paradigm ... at least buy me dinner first."
========================================================================
11 years, 1 month
CfP 7th Workshop on Virtualization in High-Performance Cloud Computing (VHPC'12)
by VHPC 15
we apologize if you receive multiple copies of this CFP.
===================================================================
CALL FOR PAPERS
7th Workshop on
Virtualization in High-Performance Cloud Computing
VHPC '12
as part of Euro-Par 2012, Rhodes Island, Greece
===================================================================
Date: August 28, 2012
Workshop URL: http://vhpc.org
SUBMISSION DEADLINE:
Rolling abstract submission
June 4, 2012 - Full paper submission
SCOPE:
Virtualization has become a common abstraction layer in modern
data centers, enabling resource owners to manage complex
infrastructure independently of their applications. Conjointly,
virtualization is becoming a driving technology for a manifold of
industry grade IT services. The cloud concept includes the notion
of a separation between resource owners and users, adding services
such as hosted application frameworks and queueing. Utilizing the
same infrastructure, clouds carry significant potential for use in
high-performance scientific computing. The ability of clouds to provide
for requests and releases of vast computing resources dynamically and
close to the marginal cost of providing the services is unprecedented in
the history of scientific and commercial computing.
Distributed computing concepts that leverage federated resource
access are popular within the grid community, but have not seen
previously desired deployed levels so far. Also, many of the scientific
data centers have not adopted virtualization or cloud concepts yet.
This workshop aims to bring together industrial providers with the
scientific community in order to foster discussion, collaboration
and mutual exchange of knowledge and experience.
The workshop will be one day in length, composed of 20 min
paper presentations, each followed by 10 min discussion sections.
Presentations may be accompanied by interactive demonstrations.
TOPICS
Topics of interest include, but are not limited to:
Higher-level cloud architectures, focusing on issues such as:
- Languages for describing highly-distributed compute jobs
- Workload characterization for VM-based environments
- Optimized communication libraries/protocols in the cloud
- Cross-layer optimization of numeric algorithms on VM infrastructure
- System and process/bytecode VM convergence
- Cloud frameworks and API sets
- Checkpointing/migration of large compute jobs
- Instrumentation interfaces and languages
- VMM performance (auto-)tuning on various load types
- Cloud reliability, fault-tolerance, and security
- Software as a Service (SaaS) architectures
- Research and education use cases
- Virtualization in cloud, cluster and grid environments
- Cross-layer VM optimizations
- Cloud use cases including optimizations
- VM-based cloud performance modelling
- Performance and cost modelling
Lower-level design challenges for Hypervisors, VM-aware I/O devices,
hardware accelerators or filesystems in VM environments, especially:
- Cloud, grid and distributed filesystems
- Hardware for I/O virtualization (storage/network/accelerators)
- Storage and network I/O subsystems in virtualized environments
- Novel software approaches to I/O virtualization
- Paravirtualized I/O subsystems for modified/unmodified guests
- Virtualization-aware cluster interconnects
- Direct device assignment
- NUMA-aware subsystems in virtualized environments
- Hardware Accelerators in virtualization (GPUs/FPGAs)
- Hardware extensions for virtualization
- VMMs/Hypervisors for embedded systems
Data Center management methods, including:
- QoS and and service levels
- VM cloud and cluster distribution algorithms
- VM load-balancing in Clouds
- Hypervisor extensions and tools for cluster and grid computing
- Fault tolerant VM environments
- Virtual machine monitor platforms
- Management, deployment and monitoring of VM-based environments
- Cluster provisioning in the Cloud
PAPER SUBMISSION
Papers submitted to the workshop will be reviewed by at least two
members of the program committee and external reviewers. Submissions
should include abstract, key words, the e-mail address of the
corresponding author, and must not exceed 10 pages, including tables
and figures at a main font size no smaller than 11 point. Submission
of a paper should be regarded as a commitment that, should the paper
be accepted, at least one of the authors will register and attend the
conference to present the work.
Accepted papers will be published in the Springer LNCS series - the
format must be according to the Springer LNCS Style. Initial
submissions are in PDF; authors of accepted papers will be requested
to provide source files.
Format Guidelines: http://www.springer.de/comp/lncs/authors.html
Style template:
ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip
Abstract Submission Link: http://edas.info/newPaper.php?c=11943
IMPORTANT DATES
Rolling abstract submission
June 4, 2012 - Full paper submission
June 29, 2012 - Acceptance notification
July 20, 2012 - Camera-ready version due
August 28, 2012 - Workshop Date
CHAIR
Michael Alexander (chair), TU Wien, Austria
Gianluigi Zanetti (co-chair), CRS4, Italy
Anastassios Nanos (co-chair), NTUA, Greece
PROGRAM COMMITTEE
Paolo Anedda, CRS4, Italy
Giovanni Busonera, CRS4, Italy
Brad Calder, Microsoft, USA
Roberto Canonico, University of Napoli Federico II, Italy
Tommaso Cucinotta, Alcatel-Lucent Bell Labs, Ireland
Werner Fischer, Thomas-Krenn AG, Germany
William Gardner, University of Guelph, USA
Marcus Hardt, Forschungszentrum Karlsruhe, Germany
Sverre Jarp, CERN, Switzerland
Shantenu Jha, Louisiana State University, USA
Xuxian Jiang, NC State, USA
Nectarios Koziris, National Technical University of Athens, Greece
Simone Leo, CRS4, Italy
Ignacio Llorente, Universidad Complutense de Madrid, Spain
Naoya Maruyama, Tokyo Institute of Technology, Japan
Jean-Marc Menaud, Ecole des Mines de Nantes, France
Dimitrios Nikolopoulos, Foundation for Research&Technology Hellas, Greece
Jose Renato Santos, HP Labs, USA
Walter Schwaiger, TU Wien, Austria
Yoshio Turner, HP Labs, USA
Kurt Tutschku, University of Vienna, Austria
Lizhe Wang, Indiana University, USA
Chao-Tung Yang, Tunghai University, Taiwan
DURATION: Workshop Duration is one day.
GENERAL INFORMATION
The workshop will be held as part of Euro-Par 2012.
Euro-Par 2012: http://europar2012.cti.gr/
11 years, 1 month
Spice client hates filling out tax forms!
by Tom Horsley
I'm running H&R block Tax Cut in a Windows XP virtual machine
on my Fedora 16 desktop. I'm trying to see if it can import
my W-2 form, so I type in my employer's ID number and click
the search button, and "Poof!" the spice client window
disappears instantly.
The virtual machine is still running OK, and I can restart
the spice client and TAB to the button and hit Enter.
That works fine.
I don't know what it is about clicking that one button
in that one screen in that one program, but it sure
upsets the spice client.
I clicked zillions of other buttons while filling out
my taxes with no issues at all, but that one is too much
for it.
11 years, 1 month
Re: [fedora-virt] FYI: iPXE in Fedora 17
by Kashyap Chamarthy
On 04/04/2012 02:36 PM, Kashyap Chamarthy wrote:
>
>>>
>>> The version of libvirt you have is not expecting the new 2-digit QEMU
>>> version numbers. Update to newer libvirt too !
>>
>> Gah, silly me.
>>
>> Just kicked off a scratch build for libvirt too using this srm -->
>> libvirt-0.9.10-4.fc17.src.rpm -- http://koji.fedoraproject.org/koji/taskinfo?taskID=3962625
>>
>> Will retest once it's built.
>
> I updated libvirt from 'virt-preview' repo, and that seems to be sufficient to create a
> guest using :
>
>
> ===
> # virt-install --connect=qemu:///system --network=bridge:br0 --pxe --name f16tbox2 --disk
> path=/var/lib/libvirt/images/f16tbox2.img,size=8 --ram 1024 --vcpus=2 --check-cpu --hvm
> --os-variant fedora16
> ===
>
> Version info:
> ===
> # rpm -qa | egrep -i 'qemu|libvirt'
> ipxe-roms-qemu-20120328-1.gitaac9718.fc16.noarch
> libvirt-0.9.10-2.fc16.x86_64
> qemu-common-1.0-11.fc16.x86_64
> qemu-kvm-1.0-11.fc16.x86_64
> qemu-system-x86-1.0-11.fc16.x86_64
> libvirt-client-0.9.10-2.fc16.x86_64
> qemu-img-1.0-11.fc16.x86_64
> libvirt-python-0.9.10-2.fc16.x86_64
> ===
>
> Even the upgrade path from gpxe-roms-qemu to ipxe-roms-qemu is successful.
>
> Updated the karma on Bodhi for iPXE.
>
> Thanks Dan.
>
>
>>
>> Thanks.
>>
>>
>>>
>>>
>>> Daniel
>>
>> _______________________________________________
>> virt mailing list
>> virt(a)lists.fedoraproject.org
>> https://admin.fedoraproject.org/mailman/listinfo/virt
>
>
11 years, 2 months
