In this blog, I will cover the following aspects of Openstack Networking.
- Evolution from Nova-network to Neutron
- Neutron plugin model
- ML2 plugin
- Openstack + ODL integration
Tag Archives: cisco
Hybrid Cloud
In the recent Rightscale survey, 74% of the respondents mentioned that they have a multi-cloud strategy and 48% of the respondents are planning for hybrid clouds. The recent trend in Cloud computing after Public and Private cloud is Hybrid cloud. Hybrid cloud offers the best of Private and Public cloud in some scenarios and Enterprises seem to like that.
In this blog, I will cover the following:
- What is Hybrid cloud and Multi-cloud?
- Use cases for Hybrid cloud.
- Components of Hybrid cloud and design considerations – Cloud management, Network connectivity, Application portability
- Popular Hybrid cloud providers – Rightscale and AWS, Vmware VCHS, Cisco Intercloud, Rackspace hybrid cloud, Redhat open hybrid cloud
Network Virtualization – Overview and popular commercial solutions
In this blog, I will cover the following:
- Overview and need for Network Virtualization
- Relation between Cloud management and Network Virtualization
- Network Virtualization approaches
- Overlay Networks
- Service chaining
- Popular Network Virtualization solutions – Vmware NSX, Juniper Opencontrail, Cisco ACI.
Overview and need for Network Virtualization
Network Virtualization allows for abstracting the Networking resources into a logical/software model so that the same set of physical resources can be shared by multiple tenants in a secure and isolated manner. There are 2 kinds of Networking resources, one is the physical resources like Router, Switch and another is appliances like Firewall, Load balancer etc. The appliance can be either physical or virtual. NFV(Network functions virtualization) can be considered a subset of Network Virtualization.
Network Virtualization is similar to Server Virtualization. In server virtualization, compute resources are virtualized, while in network virtualization, networking resources are virtualized. Network virtualization took much longer time to come to the market compared to server virtualization. Following picture gives a good comparison between the 2.
Continue reading Network Virtualization – Overview and popular commercial solutions
Cloud Infrastructure
In this blog, I will cover:
- Major components of the Cloud infrastructure from hardware perspective
- 2 models of deploying Cloud infrastructure
- Overview of different converged infrastructure players and their solutions.
- Deepdive into VCE converged infrastructure solution.
Major Cloud hardware components are Compute, Storage and Network. There are 2 models of building Cloud infrastructure.
- Build using discrete components.
- Buy turnkey solution called as Converged Infrastructure.
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