SDN (Software-Defined Networking) 39
From the standpoint of security, the switch has VLAN isolation
and traffic filtering. Monitoring takes place by way of various
protocols such as Net flow or specific versions provided by
manufacturers linked to VMware. Quality of service is handled by
traffic-shaping and traffic-queuing techniques. The southbound
interface with the controller uses several protocols – including, of
course, OpenFlow, which is privileged, but also OvSDB (Open
vSwitch Data Base) and various network machine configuration
protocols.
The key functions of NSX VMware can be summarized as follows:
– logical switching: NSX performs complete level-2 or 3 switching
in a virtual environment, dissociated from the underlying hardware;
– NSX gateway: NSX offers level-2 gateways for a transparent
connection to the physical loads and the legacy VLANs;
– logical firewall: NSX opted for a distributed, virtualizationoriented firewall with identification and activity monitoring;
– logical load distributor: NSX provides a complete load
distributor with SSL termination;
– logical VPN:NSX facilitates the opening of site-to-site or
remote-access VPNs in software form;
– NSX API:NSX provides a RESTful API for integration with any
Cloud management platform.
The mode of operation means that we can have complete
dissociation of the physical infrastructure from the software networks
formed of virtual machines. Virtualization of the networks enables us
to superpose them on any physical hardware whose input/output ports
are suited to the transmissions. In addition, NSX works with any type
of hypervisor, which makes it easy to virtualize the servers. The NSX
system facilitates the reproduction of the physical network model in
software form, whether of level 2, 3, 4 or 7. NSX also includes
automation by way of a RESTful (REpresentational State Transfer)
API, which enables the Cloud management platforms to automate the
supply of network services. Finally, NSX offers a platform which is
capable of adding in services from other suppliers. These software and
www.it-ebooks.info
From the standpoint of security, the switch has VLAN isolation
and traffic filtering. Monitoring takes place by way of various
protocols such as Net flow or specific versions provided by
manufacturers linked to VMware. Quality of service is handled by
traffic-shaping and traffic-queuing techniques. The southbound
interface with the controller uses several protocols – including, of
course, OpenFlow, which is privileged, but also OvSDB (Open
vSwitch Data Base) and various network machine configuration
protocols.
The key functions of NSX VMware can be summarized as follows:
– logical switching: NSX performs complete level-2 or 3 switching
in a virtual environment, dissociated from the underlying hardware;
– NSX gateway: NSX offers level-2 gateways for a transparent
connection to the physical loads and the legacy VLANs;
– logical firewall: NSX opted for a distributed, virtualizationoriented firewall with identification and activity monitoring;
– logical load distributor: NSX provides a complete load
distributor with SSL termination;
– logical VPN:NSX facilitates the opening of site-to-site or
remote-access VPNs in software form;
– NSX API:NSX provides a RESTful API for integration with any
Cloud management platform.
The mode of operation means that we can have complete
dissociation of the physical infrastructure from the software networks
formed of virtual machines. Virtualization of the networks enables us
to superpose them on any physical hardware whose input/output ports
are suited to the transmissions. In addition, NSX works with any type
of hypervisor, which makes it easy to virtualize the servers. The NSX
system facilitates the reproduction of the physical network model in
software form, whether of level 2, 3, 4 or 7. NSX also includes
automation by way of a RESTful (REpresentational State Transfer)
API, which enables the Cloud management platforms to automate the
supply of network services. Finally, NSX offers a platform which is
capable of adding in services from other suppliers. These software and
www.it-ebooks.info