BIG IP F5 LTM:
Historical Overview: -
Historically, there have been two ways to build Application Delivery
Networking
Appliances—build them for performance or build them for intelligence.
In the open market, customers have traditionally selected solutions that
exhibit the best performance. As a result, most vendors have built their
devices on faster, packet based designs instead of the poorer performing
proxy-based architecture. As the need for intelligence in these devices has
grown, vendors find themselves in a precarious position: the more intelligence
they add to the devices in response to
Customer demand, the closer they resemble a proxy and the worse they
perform.
F5 initially took the packet-based path, but simultaneously started
addressing the root problem—making an intelligent solution that also delivers
high performance. The result is the F5 TMOS® architecture, a collection of
real-time features and functions, purpose-built and designed as a full-proxy
solution with the power and performance required in today’s network
infrastructure.
TMOS Platform ( Time Management Operating System )
A unified product platform that delivers complete control and
scalability: -
TMOS is the universal product platform shared by F5 BIG-IP products. No
single competing technology can solve such a wide variety of application
delivery problems over networks.
With its application control plane architecture, TMOS gives you
intelligent control over the acceleration, security, and availability services
your applications require. TMOS establishes a virtual, unified pool of highly
scalable, resilient, and reusable services that can dynamically adapt to the
changing conditions in data centres and virtual and cloud infrastructures
Ø
A Collection of Modules: networking driver
module, an Ethernet module, an ARP module, an IP module, a TCP module, and so
on.
Ø Self-Contained
and Autonomous : TMOS-based device has a form of Linux running on it but TMOS
& Linux are two different parts & It is important to note that this
Linux system is not involved in any aspect of the traffic flowing through TMOS.
Ø A
Real-Time Operating System: A real-time operating system means TMOS does not
have a preemptive CPU scheduler.
Ø Both
Hardware and Software: Because TMOS is inherently modular in design; it doesn’t
matter whether individual functions are handled by software or by hardware.
With TMOS, everything can be done in software utilizing highly optimized and
purpose built modules.
Ø Stateful
inspection
Ø
Dynamic Packet Filtering : Bu default deny all
policy in F5
