F5 Networks: The Internet of Things - Ready Infrastructure

The Internet of Things–Ready
Infrastructure
The world of smart devices talking to each other—and to us—is well
underway and here to stay. To connect to the Internet of Things
opportunity, it’s key to design and build networking infrastructures
that can handle massive amounts of new data.
Technical White Paper

Introduction
The lines between our physical and digital worlds are blurring. Our daily experiences
are—and will continue to be—impacted by the prevalence of Internet-connected
devices and anytime, anywhere access to information. And there is no sign of things
slowing down. Each year will see exponential growth in devices connected to the
Internet. In fact, Gartner predicts there will be 25 billion connected “things” by
2020.
These “things” will come in all shapes and sizes, from three-ton automobiles to
clothing to under-the-skin blood sugar monitors and even our entire home. The
world of smart devices talking to each other—and to us—is well underway. But
reaping the business rewards will depend on the ability to design and build a
networking infrastructure that successfully manages the flood of data that comes
from this new Internet, the Internet of Things (IoT).
Just as LTE and technologies like Network Functions Virtualization (NFV), software-
defined network (SDN), and VoLTE are transformative forces, there will be no
escaping the effects of the IoT. How service providers choose to respond to this
growing phenomenon and the explosion in connected devices, applications, and
data that it brings will determine who benefits most in a market that IDC forecasts
will grow to $7.1 trillion in the next five years.
Much like “bring your own device” transformed the workplace and enterprise
mobility—not to mention subscriber expectations for faster, more reliable access to
apps—the IoT will impact almost every aspect of our daily lives. Enhanced customer
service and improved use of field assets have already been realized by early adaptors
across multiple industries. Moving forward, new business models will blossom and
services will become more important than simple devices. With smartphones being
the epicenter of people’s daily lives—and a crucial hub for IoT data traffic—finding a
way to bring all this together is key for keeping pace in a constantly evolving
landscape. And it must be done while ensuring network efficiency, interoperability,
and security within your enterprise and optimal performance and security for the
services you deliver to subscribers.
More devices. More threats.
The IoT does not come without its challenges. Threats to data security, physical
security, security of devices, regulations, privacy, encryption, authentication and a
host of other issues all need to be addressed before the IoT can really become
commonplace. These themes sound eerily similar to the ones surrounding the cloud
only a couple of years ago. Now, consumer devices are the focus, and service
providers will work to find new ways of driving greater operational efficiency and
better management of infrastructure—for themselves and their customers. The
challenge in harnessing this powerful force isn’t limited to managing the sheer
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service and improved use of field assets have already been realized by early adaptors
across multiple industries. Moving forward, new business models will blossom and
services will become more important than simple devices. With smartphones being
the epicenter of people’s daily lives—and a crucial hub for IoT data traffic—finding a
way to bring all this together is key for keeping pace in a constantly evolving
landscape. And it must be done while ensuring network efficiency, interoperability,
and security within your enterprise and optimal performance and security for the
services you deliver to subscribers.
More devices. More threats.
The IoT does not come without its challenges. Threats to data security, physical
security, security of devices, regulations, privacy, encryption, authentication and a
host of other issues all need to be addressed before the IoT can really become
commonplace. These themes sound eerily similar to the ones surrounding the cloud
only a couple of years ago. Now, consumer devices are the focus, and service
providers will work to find new ways of driving greater operational efficiency and
better management of infrastructure—for themselves and their customers. The
challenge in harnessing this powerful force isn’t limited to managing the sheer
volume of data created. It’s also making sense of that data to prioritize traffic and
optimizing the application architecture itself.
Expert predictions tell us the IoT market size and the growing number of new
devices will surpass anything we’ve seen. The wider implications for the underlying
network infrastructure used to manage, monitor, and monetize these devices,
though less obvious, will require considerable attention. The consequence of these
devices and their supporting ecosystem failing could vary from a simple annoyance
—device apps stuck on software updates—to something significantly worse, like a
security breach targeting personally identifiable information. Vulnerabilities in devices
will exist, devices will connect looking for updates, and patches will need to be
pushed out. How will the infrastructure survive the onslaught?
The Internet of Things is not just about the things. It is really about the applications
and services that enable them. F5 Synthesis™—the next generation model for
supporting applications—can help apps (and the “things” they power) perform
better with greater security and ensure that they are always available. A key
component of the Synthesis model, F5® Software-Defined Application Services™
(SDAS™) allows application delivery to evolve in alignment with new IoT innovations
and device demands.
What are these “things”?
The Internet of Things refers to the set of devices and systems that interconnect
real-world sensors and actuators to the Internet. This includes many different types
of systems, such as:
Mobile devices
Smart meters and objects
Wearable devices including clothing, health care implants, smart watches, and
fitness devices
Internet-connected automobiles
Home automation systems, including thermostats, lighting, and home security
Other measuring sensors for weather, traffic, ocean tides, road signals, and more
These systems connect to the Internet or gateway in a variety of ways, such as
long-range WiFi/Ethernet using IP protocols (TCP/UDP, including cellular); short-
range Bluetooth low energy; short-range Near Field Communication; and other
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of systems, such as:
Mobile devices
Smart meters and objects
Wearable devices including clothing, health care implants, smart watches, and
fitness devices
Internet-connected automobiles
Home automation systems, including thermostats, lighting, and home security
Other measuring sensors for weather, traffic, ocean tides, road signals, and more
These systems connect to the Internet or gateway in a variety of ways, such as
long-range WiFi/Ethernet using IP protocols (TCP/UDP, including cellular); short-
range Bluetooth low energy; short-range Near Field Communication; and other
types of medium-range radio networks. Point-to-point radio links and serial lines are
also used. Some devices/sensors connect directly to the Internet via an IP protocol
and others with specific IoT protocols, such as Message Queue Telemetry
Transport (MQTT), Constrained Application Protocol, and others. These may need
may need specialized IoT networking hardware to “talk” to the data center.
MQTT is a “subscribe and publish” messaging protocol designed for lightweight
machine-to-machine communications. Originally developed by IBM, it is now an
open standard. It needs a gateway or receiver (broker) to communicate. However, its
primary purpose is to allow a device to send a very short message one hop to an
MQ broker and to receive commands from that broker. Every message is published
to a location, called a topic. Clients (the sensors) subscribe to various topics and
when a message is published to the topic, the client/sensor gets it.
For example, imagine a simple network with three clients and a central broker.
All three clients open TCP connections with the broker. Clients B and C subscribe
to the topic speed.
At a later time, Client A publishes a value of 15mph for topic speed. The broker
forwards the message to all subscribed clients.
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At a later time, Client A publishes a value of 15mph for topic speed. The broker
forwards the message to all subscribed clients.
The publisher subscriber model allows MQTT clients to communicate one-to-one,
one-to-many, and many-to-one.
The systems themselves typically fall into a few categories. The smallest devices
have 8-bit embedded “system on a chip” controllers but no operating system.
Others have a limited 32-bit architecture, like a home router, with or without a base
OS. The most capable systems have either full 32-bit or 64-bit operating platforms,
such as mobile phones. Customers could use their mobile phone to send the data,
via the Internet, from the IoT device to the destined application.
Not only are we interacting with these devices, they are interacting with other
machines to send speciﬁc information, which is called machine-to-machine (M2M)
technology. The M2M fabric works in conjunction with the various systems that
support wearables, home networks, and the widely deployed sensors that are part
of them.
According to Gartner, the Internet of Things is not a single technology but a
concept with embedded sensors driving the trend, real-time support and learning
having a social impact and it allows businesses to make situational decisions based
on the sensor’s information. No single architecture can address all the
potential IoT device areas and the requirements of each. But a scalable
architecture that can add or subtract resources to support a wide variety of
scenarios can prepare service providers for the impact the IoT will have.
The IoT eﬀect on applications
Many of today’s traditional architectures will buckle under the increasing demand of
all the connected devices. According to IDC, the rate at which applications double in
the enterprise is once every four years. This time frame is likely to be cut in half as
more IoT devices need applications supporting them and service providers need to
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According to Gartner, the Internet of Things is not a single technology but a
concept with embedded sensors driving the trend, real-time support and learning
having a social impact and it allows businesses to make situational decisions based
on the sensor’s information. No single architecture can address all the
potential IoT device areas and the requirements of each. But a scalable
architecture that can add or subtract resources to support a wide variety of
scenarios can prepare service providers for the impact the IoT will have.
The IoT effect on applications
Many of today’s traditional architectures will buckle under the increasing demand of
all the connected devices. According to IDC, the rate at which applications double in
the enterprise is once every four years. This time frame is likely to be cut in half as
more IoT devices need applications supporting them and service providers need to
be ready for the increased demand.
As more applications are needed to run ”things,” traditional infrastructure concerns
such as scale and reliability are becoming paramount. Additional challenges with
identity and access, improving the end-user or subscriber experience, and the need
for faster provisioning of services could overwhelm IT departments. A robust,
scalable, and intelligent infrastructure will be necessary to handle the massive traffic
growth.
The Domain Name System is the most likely method for connected devices to use to
locate needed services, and it’s potentially the means by which people will locate the
devices themselves. There might be other schemas being planned, but those would
require the adoption of a new technology naming standard, which would be costly,
slow, and highly unlikely.
Security at every layer
Clearly, security must also be present since the IoT has the potential to weave
vulnerabilities throughout the system—the ubiquity of connected devices presents a
gold mine for attackers. Outpacing attackers in our current threat landscape will
require more resources in order to minimize risk. Service providers will need to
continue to harden their own infrastructures and look to cloud services like DDoS
mitigation to lessen the effects of attacks.
At the same time, the explosion of embedded devices will further drive mainstream
IPv6 adoption. There are several advantages to IPv6 such as a large namespace,
address self-configuration, and the potential to remove Network Address
Translation problems. The networking infrastructure will require some planning to
embrace this shift. Components such as routers, firewalls, and application delivery
controllers will need to be IPv6–ready and capable of understanding the protocols
and data that devices will use to communicate.
To ensure security, intelligent routing, and analytics, networking layers will need to
be fluent in the language that devices use. Understanding these protocols within
the network will allow traffic to be secured, prioritized, and routed accordingly.
Recognizing and prioritizing these messages will enable better scalability and
manageability for the onslaught of device traffic and data. Intelligence will also be
needed to categorize what data needs attention (like a health monitor alert) and
what doesn’t (like temperature is good).
According to TechTarget, ensuring high availability of the IoT services will rely on
boosting traffic management and monitoring. This will both mitigate business
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and data that devices will use to communicate.
To ensure security, intelligent routing, and analytics, networking layers will need to
be fluent in the language that devices use. Understanding these protocols within
the network will allow traffic to be secured, prioritized, and routed accordingly.
Recognizing and prioritizing these messages will enable better scalability and
manageability for the onslaught of device traffic and data. Intelligence will also be
needed to categorize what data needs attention (like a health monitor alert) and
what doesn’t (like temperature is good).
According to TechTarget, ensuring high availability of the IoT services will rely on
boosting traffic management and monitoring. This will both mitigate business
continuity risks, and prevent potential losses. From a project planning standpoint,
organizations need to do capacity planning and watch the growth rate of the
network so that the increased demand for the required bandwidth can be met.
Figure 1: Intelligent application delivery for the IoT
The IoT–ready infrastructure
The F5 SDAS fabric provides a foundation for building elastic IoT application
services. F5 ScaleN™ technology enables on-demand application and operational
scalability at the platform layer. This means the fabric can be deployed on a
combination of hardware, software, and virtual form factors—as well as beyond the
data center boundary into cloud computing environments.
Avoiding a single point of failure
The IoT applications will come in all shapes and sizes. But no matter the size,
availability is paramount to support both subscribers and the business. The most
basic high-availability architecture is the typical three-tier design. A pair of
Application Delivery Controllers (ADCs) in the DMZ terminates the connection. They,
in turn, intelligently distribute the client request to a pool (multiple) of IoT application
servers, which then query the database servers for the appropriate content. Each
tier has redundant servers so in the event of a server outage, the others take the
load and the system stays available.
This is a tried-and-true design for most operations and provides resilient application
availability, IoT or not, within a typical data center. But fault tolerance between two
data centers is even more reliable than multiple servers in a single location, simply
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The IoT applications will come in all shapes and sizes. But no matter the size,
availability is paramount to support both subscribers and the business. The most
basic high-availability architecture is the typical three-tier design. A pair of
Application Delivery Controllers (ADCs) in the DMZ terminates the connection. They,
in turn, intelligently distribute the client request to a pool (multiple) of IoT application
servers, which then query the database servers for the appropriate content. Each
tier has redundant servers so in the event of a server outage, the others take the
load and the system stays available.
This is a tried-and-true design for most operations and provides resilient application
availability, IoT or not, within a typical data center. But fault tolerance between two
data centers is even more reliable than multiple servers in a single location, simply
because that one data center is a single point of failure.
Cloud: The IoT enabler
The cloud has become one of the primary enablers for IoT. Within the next five
years, more than 90 percent of all IoT data will be hosted on service provider
platforms. That’s because cloud computing reduces the complexity of supporting
IoT “Data Blending.”
In order to achieve or even maintain continuous IoT application availability and keep
up with the pace of new IoT application rollouts, service providers must explore
expanding their data center options. Having access to cloud resources provides
service providers with the agility and flexibility to quickly provision IoT services. The
cloud offers organizations a way to manage IoT services, rather than boxes along
with just-in-time provisioning. Cloud enables IT as a Service, just as IoT is a service,
along with the flexibility to scale when needed.
Integrating cloud-based IoT resources into the architecture requires only a couple of
pieces: connectivity, along with awareness of how those resources are being used.
The connectivity between a data center and the cloud is generally referred to as a
cloud bridge. The cloud bridge connects the two data center worlds securely and
provides a network compatibility layer that bridges the two networks. This provides
a transparency that allows resources in either environment to communicate without
concern for the underlying network topology.
Once a connection is established and network bridging capabilities are in place,
resources provisioned in the cloud can be non-disruptively added to the data
center–hosted pools. From there, load is distributed per the F5 BIG-IP® platform’s
configuration for the resource, such as an IoT application.
By integrating the enterprise data center with external clouds, the cloud becomes a
secure extension of the enterprise’s IoT network. This enterprise-to-cloud network
connection is encrypted and optimized for performance and bandwidth, thereby
reducing the risks and lowering the effort involved in migrating IoT workloads to the
cloud.
Maintain seamless delivery
This hybrid infrastructure approach, including cloud resources, for IoT deployments
not only allows service providers to distribute their IoT applications and services
when it makes sense, but also provides global fault tolerance to the overall system.
Depending on how the disaster recovery infrastructure is designed, this can be an
active site, a hot standby, a leased hosting space, a cloud provider, or some other
contained compute location. As soon as that IoT server, application, or even
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center–hosted pools. From there, load is distributed per the F5 BIG-IP® platform’s
configuration for the resource, such as an IoT application.
By integrating the enterprise data center with external clouds, the cloud becomes a
secure extension of the enterprise’s IoT network. This enterprise-to-cloud network
connection is encrypted and optimized for performance and bandwidth, thereby
reducing the risks and lowering the effort involved in migrating IoT workloads to the
cloud.
Maintain seamless delivery
This hybrid infrastructure approach, including cloud resources, for IoT deployments
not only allows service providers to distribute their IoT applications and services
when it makes sense, but also provides global fault tolerance to the overall system.
Depending on how the disaster recovery infrastructure is designed, this can be an
active site, a hot standby, a leased hosting space, a cloud provider, or some other
contained compute location. As soon as that IoT server, application, or even
location starts to have trouble, a service provider can seamlessly maneuver around
the issue and continue to deliver its services to the devices.
Advantages for a range of industries
The various combinations of hybrid infrastructure types can be as diverse as the IoT
situations that use them.
Service providers probably already have some level of hybrid, even if it is a mix of
owned space plus SaaS. In most cases, the preference is to keep sensitive assets
in-house, but this approach has started to shift, with increased migration of
workloads to hybrid data centers. It all depends on the industry. For example,
financial industries have different requirements than retail. Retail will certainly need a
boost to its infrastructure as more customers will want to test IoT devices in-store.
Whatever the case may be, service providers are in a unique situation as they will
ultimately be touched by all this increased data traffic.
The service provider industry is well on its way to building out the IoT–ready
infrastructures and services. One major service provider is deploying BIG-IP virtual
editions to provide the ADC functionality needed for the scale and flexibility of its
connected-car project. Virtualized solutions are required for NFV to enable the agility
and elasticity necessary to support the IoT infrastructure demands.
The IoT–ready platform
Because F5 application services share a common control plane—the F5 platform—
the process of deploying and optimizing IoT application delivery services is
simplified. With the elastic power of SDAS, organizations can rapidly provision IoT
application services across the data center and into cloud computing environments,
reducing the time and costs associated with deploying new applications and
architectures.
The beauty of SDAS is that it can provide the global services to direct the IoT
devices to the most appropriate data center or hybrid cloud depending on the
request, context, and application health. Subscribers, employees, and the IoT
devices themselves receive the most secure and fastest experience possible.
The F5 high-performance services fabric supports traditional and emerging underlay
networks. It can be deployed on top of a traditional IP and VLAN-based networks,
works with SDN overlay networks using NVGRE or VXLAN (as well as a variety of
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application services across the data center and into cloud computing environments,
reducing the time and costs associated with deploying new applications and
architectures.
The beauty of SDAS is that it can provide the global services to direct the IoT
devices to the most appropriate data center or hybrid cloud depending on the
request, context, and application health. Subscribers, employees, and the IoT
devices themselves receive the most secure and fastest experience possible.
The F5 high-performance services fabric supports traditional and emerging underlay
networks. It can be deployed on top of a traditional IP and VLAN-based networks,
works with SDN overlay networks using NVGRE or VXLAN (as well as a variety of
less well-known overlay protocols), and integrates with SDN fabrics, such as those
from Cisco/Insieme, Arista, and BigSwitch, among others.
Hardware, software—or cloud
The services fabric model enables consolidation of services onto a common platform
that can be deployed on hardware, on software, or in the cloud. This reduces
operational overhead by standardizing management as well as enabling deployment
processes that support continuous delivery efforts. By sharing service resources
and leveraging fine-grained multi-tenancy, the cost of individual services is
dramatically reduced, enabling all IoT applications—regardless of size—to take
advantage of services that are beneficial to their security, reliability, and performance.
The F5 platform:
Provides the network security to protect against inbound attacks
Offloads SSL to improve the performance of the application servers
Not only understands the application but also knows when it is having problems
Ensures not only the best end-user experience but also quick and efficient data
replication
F5 cloud solutions can automate and orchestrate the deployment of IoT application
delivery services across both traditional and cloud infrastructures while also
managing the dynamic redirection of workloads to the most suitable location. These
application delivery services ensure predictable IoT experiences, a replicated security
policy, and workload agility.
F5 BIG-IQ™ Cloud can federate management of BIG-IP solutions across both
traditional and cloud infrastructures, helping organizations deploy and manage IoT
delivery services in a fast, consistent, and repeatable manner, regardless of the
underlying infrastructure. In addition, BIG-IQ Cloud integrates or interfaces with
existing cloud orchestration engines such as VMware vCloud Orchestrator to
streamline the overall process of deploying applications.
Extend, scale—and secure
F5 cloud solutions offer a rapid Application Delivery Network provisioning solution,
drastically reducing the lead times for expanding IoT delivery capabilities across data
centers, whether they are private or public. As a result, service providers can
efficiently:
Extend data centers to the cloud to support IoT deployments
Scale IoT applications beyond the data center when required
Secure and accelerate IoT connections to the cloud
For maintenance situations, service providers no longer need to manually redirect
traffic by configuring applications. Instead, IoT applications are proactively redirected
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F5 Silverline™ DDoS Protection
is a service delivered via the
Silverline DDoS Protection
cloud-based platform that
provides continuous DDoS
protection, detection, and
mitigation to stop even the
largest volumetric DDoS attacks
from reaching IoT networks.
Extend, scale—and secure
F5 cloud solutions offer a rapid Application Delivery Network provisioning solution,
drastically reducing the lead times for expanding IoT delivery capabilities across data
centers, whether they are private or public. As a result, service providers can
efficiently:
Extend data centers to the cloud to support IoT deployments
Scale IoT applications beyond the data center when required
Secure and accelerate IoT connections to the cloud
For maintenance situations, service providers no longer need to manually redirect
traffic by configuring applications. Instead, IoT applications are proactively redirected
to an alternate data center prior to maintenance.
The BIG-IP platform is application and location agnostic, meaning the type of
application or where the application lives really does not matter. As long as you tell
the BIG-IP platform where to find the IoT application, the BIG-IP platform will deliver
it.
Bringing it all together, F5 Synthesis gives cloud and application providers, as well
as mobile network operators, the architectural framework necessary to ensure the
performance, reliability, and security of IoT applications.
Conclusion
Connected devices are here to stay—forcing us to move forward into this brave new
world where almost everything generates data traffic. While there’s much to
consider, proactively addressing these challenges and adopting new approaches for
enabling an IoT–ready network will help service providers chart a clearer course
toward success.
An IoT–ready environment can enable service providers to begin taking advantage of
this societal shift without a wholesale rip-and-replace of existing technology. It also
provides the breathing room needed to ensure that the coming rush of connected
devices does not cripple the network infrastructure. This process ensures benefits
will be realized without compromising on the operational governance required to
ensure availability and security of the IoT network, data, and application resources. It
also means service providers can manage IoT services instead of boxes.
However an IoT–ready infrastructure is constructed, it is a transformational journey.
It is not something that should be taken lightly or without a long-term strategy in
place. When done properly, an F5-powered IoT–ready infrastructure can bring
significant benefits to service providers, their employees, and their subscribers.
http://www.gartner.com/newsroom/id/2905717
http://www.forbes.com/sites/gilpress/2014/08/22/internet-of-things-by-the-numbers-
market-estimates-and-forecasts/
http://wso2.com/whitepapers/a-reference-architecture-for-the-internet-of-things/
http://eclipse.org/community/eclipse_newsletter/2014/february/article2.php
http://www.gartner.com/webinar/2862818
IDC Directions, “Battle for the Future of the Datacenter: The Role of Disaggregated Systems,”
Mar 2014
http://searchsecurity.techtarget.com/tip/Internet-of-Things-IOT-Seven-enterprise-risks-to-
consider
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http://www.gartner.com/newsroom/id/2905717
http://www.forbes.com/sites/gilpress/2014/08/22/internet-of-things-by-the-numbers-
market-estimates-and-forecasts/
http://wso2.com/whitepapers/a-reference-architecture-for-the-internet-of-things/
http://eclipse.org/community/eclipse_newsletter/2014/february/article2.php
http://www.gartner.com/webinar/2862818
IDC Directions, “Battle for the Future of the Datacenter: The Role of Disaggregated Systems,”
Mar 2014
http://searchsecurity.techtarget.com/tip/Internet-of-Things-IOT-Seven-enterprise-risks-to-
consider
http://support.rightscale.com/12-
Guides/Designers_Guide/Cloud_Solution_Architectures/Designing_and_Deploying_High-
Availability_Websites
IDC FutureScape Internet of Things:
http://www.machinetomachinemagazine.com/2014/12/04/idc-report-worldwide-iot-
predictions-for-2015/
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F5 Networks, Inc.
401 Elliot Avenue West, Seattle, WA 98119
888-882-4447 www.f5.com
Americas
info@f5.com
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Europe/Middle-East/Africa
emeainfo@f5.com
Japan
f5j-info@f5.com
©2015 F5 Networks, Inc. All rights reserved. F5, F5 Networks, and the F5 logo are trademarks of F5 Networks, Inc. in the U.S. and in certain other countries. Other F5
trademarks are identified at f5.com. Any other products, services, or company names referenced herein may be trademarks of their respective owners with no endorsement or
affiliation, express or implied, claimed by F5. CS04-00015 0113
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