Retis means “Networks”.
with wide industry experience and strong academic background applied to
to always align technology with business needs and satisfy customer
on reducing capital and operation costs.
in-house and industry methodologies.
company able to offer personalized attention.
and cost competitive.
ethical and professional services offered.
Retis means “Networks”
Retis is a company
whose main focus is to provide Consulting
and Professional Services in the area of data, unified communications,
information security, computer and information
Competition in the
Information Technology industry is hard. Nevertheless, Retis’ objective is
to be distinguished among many companies by being highly specialized in topics related to Networks and common fields.
In order to deliver
a solution, Retis may integrate products from recognized networking
companies. However, our profit comes from the delivery of professional services
provided by a group of highly skilled networking consultants.
Retis has developed
its own niches or areas of deep
expertise in order to get a clear position
of advantage over its competitors. Retis offers a set of packaged-services
or products of its own to satisfy customer’s requirements that few other
companies may compete with.
This is the list of
Retis Technologies of
and branch networks.
area corporate networks.
unified communications, voice and data networks.
Services in these different areas can be offered at different points in the
and existing networks architecture.
networks assessment, analysis and audit.
Data Centre Networks
The data centre (DC)
is the place where central compute and storage reside to enable key applications
to operate in the organization. The network at these locations is required
to provide very high speed connectivity. In the same way, this is the
central location for secure ingress into the corporate network and the
Internet. Data centre security segmentation is a typical need.
Retis is aware of
the challenges required to enable connectivity to different components in
this place like standalone or chassis servers, storage controllers or
hyper-converged / unified solutions that contain both. In the same way,
this applies to all virtualization hypervisors (VMWare and other) and
container solutions deployed on top of the compute resources.
resources are also typically integrated into these solutions like load
balancers, high capacity next generation firewalls, central Wi-Fi
controllers, management, visibility and surveillance nodes and obviously
all network devices strictly focused on packet forwarding like switches and
The architecture of
the network can be done in a traditional way or also following a “Software
Defined” approach (SDN) that paves the road for application
micro-segmentation as well as new automation and orchestration solutions.
have vast experience dealing with data centres of different sizes. It is
also good to mention the new approach to create a hybrid solution with some
components in the Cloud and some on premise.
Campus and Branch Networks
The edge of the
network is also a key component to provide access to all end users.
have experience starting from the network foundation all the way to the end
user application experience. We know all environmental and cabling
requirements and standards (fibre or copper) needed to create a multitier
We have deep
knowledge about all access, distribution and core switching technologies
and industry trends. These can include PoE,
multi-gigabit Ethernet, WiFi access points, IoT building systems nodes, QoS, VoIP - PBX, Video, and
other collaboration end point requirements. Network access control (NAC)
and client zone segmentation are also a typical security requirement
included in this part of the network.
Wide Area Corporate networks
A large distributed
organization in the same province or state, country or at an international
level has a strong business dependency on a WAN.
experienced the challenges involved in deploying various sizes of WAN
networks. First we start by being aware of the application constrains like
capacity, priority, latency and jitter. If these are not satisfied, several
remote business users will be affected.
We know the
different connectivity products typically offered by service providers in
our area. These can go from MPLS, VPLS, DWDM, dark fibre all the way to
simple Internet access circuits. We are also aware and able to integrate
VPNs and SD-WAN alternatives that can be used to lower cost and migrate
locations away from expensive private circuits to simply use multiple
architecture is complete by gluing all circuits together and adding the
right routing protocols (OSPF/EIGRP/BGP) to provide the right resiliency
and availability to meet the organization priorities.
Unified Communications, Voice,
Video and Collaboration Networks
It is clear today’s
requirement is to transport voice, collaboration data and even video within
organizations. This can be either in the same site, campus or building
(LAN) or between different sites; these sites can be located in the same
city, country or even in a different continent (MAN/WAN).
have the experience to architect these type of networks. A solution design
can be created using proven technologies like Video and Voice over IP
PSTN access is also being
migrated away from traditional analog or PRI interface types to SIP trunks.
Personal DID numbers and long distance become something with no boundaries
at a country level.
benefit by using their existing data network and allowing users using
diverse endpoint types (from a home phone, smartphone, tablet, desktop,
office phone all the way to large video conferencing rooms) to all
experience a similar voice, video and content collaboration
Customer Contact and Call Centres
Times change and the
form by which an organization contacts its customers is also changing. We
live in cities that are wide and in constant expansion. At the same time,
we must analyze and make efficient use of our time. As time passes, it
becomes more and more difficult to establish a face-to-face contact with
our customers. Alternatively, we could let our voice, our image or our
data, travel instead of our bodies when contacting a customer; let us build
a Customer Contact Centre.
have the experience to build customer contact centres. Traditionally, these
solutions have used telephony as the typical channel for contacting
customers. Typical elements like a VoIP PBX assisted by an Automatic Call
Distributor or ACD can now be interfaced with newer solutions or “pieces in
the puzzle”. Client server applications, Internet and WWW interfaces, audio
response menus contained in IVRs, predictive dialers, email or chat
campaigns, integrated messaging solutions (FAX to email to voicemail) can
now all be integrated together.
consulting services for the creation of traditional telephony call centres
as well as enhanced contact centres. In this case, Retis consultants
deliver the classic voice traffic architecture required to determine the necessary
resources (lines, agents, trunks) to include in the design. As a complex
distributed solution, our services cover all aspects of an integrated
As a result,
customers expand their sales and support efforts and streamline the flow of
information among company's departments and its customers.
The questions Retis
consultants often ask the customer are: “What is the price of the
information exposed to the Internet and also included in the corporate network?
How much money and credibility will the company lose if this information is
altered, compromised or lost? How many productive hours of your staff will
be wasted and at what price (cost of lost business, lost labor)? And
finally, how are these events going to affect the final customer perception
about the company (loss of customer trust, damage to reputation)? “
information in mind, it is easy for a CIO or CFO to calculate the Return of
Investment (ROI). Benefits for investing in Network Security are
Retis offers a
series of services to allow customers to keep on being “connected to the
world” but in a much safer way.
These services may
go from a basic Firewall implementation to more robust security techniques
like network segmentation, the creation of Virtual Private Networks (VPN),
the installation of Intruder Detection Systems (IDS/IPS), network
anti-virus software, deep threat analysis authentication servers, etc.
With the advent of
laptops, smartphones and tablets, users have the expectation to always stay
connected. Wi-Fi / WLAN networks have become ubiquitous as organizations
are now expected for these to be available.
Architecting a great
WLAN is not an easy task. Retis architects know how to create the right
radio frequency (RF) design and plan the locations for all access points
and the type of antennas to use. All depends on the type of clients,
applications and physical space. Then, they define the channel and power
for all radios. Next, the logical configuration of different networks
(SSIDs) and the security requirements associated to each. Some SSIDs go to
a guest portal, some remain hidden and some are used by the organization
A Wi-Fi network is
then subject to a final assessment which is followed by adjustments and
then full operation with the right surveillance.
We can also include
the use of mobility networks (4G, LTE and 5G in the near future) as a WAN
alternative to provide resiliency for branch access or simply as the alternative
to enable connectivity at odd locations or to meet the timelines of a
services that can be part of different phases in the life of a network. All
previously described technology solutions are used to deliver the following
This is our main
service targeted to satisfy the need to build a new network or part of it.
Retis Architecture Methodology
Retis has managed to
integrate different ideas and to develop an efficient methodology for network
Network Architecture Plan
As a proof of how
solid and mature our methodology for network architecture and assessment
is, we share the main phases and activities we cover as part of these
organization’s vision, timelines and budget perceived by project
Design requirements and constrains gathering
o Technical requirements
§ Functional: connectivity, capacity,
performance, Internet access, dynamic routing and QoS.
§ Security: security and routing segmentation,
encryption and authentication.
§ Resiliency: WAN and Internet, automatic
failover to alternate DC / POP. HA, DR and BCP expectations.
§ Equipment and circuit’s lifecycle.
§ Operational requirements: surveillance, management, visibility, security policy
management, event management and backups.
§ Existing and new applications assessment
phase. The network architecture is divided into modules / building blocks.
Each block design validates all associated constrains. We then present
multiple options that can equally apply. Options include single or multiple
vendor products and their associated cost. A matrix presents all options
for decision makers to see in one place. Finally the Retis architect
suggests one alternative. The decision makers and all stake holders reach
agreement and the cycle continues for all other components.
o Typical network architecture modules /
building blocks (DC network used as a reference):
§ DC switching fabric.
§ Fabric cabling and optics.
§ Layer 3 and routing design.
§ Internet, edge networks and DMZ access.
§ Security elements: Network segmentation and
firewalls, VPN service, IDS/IPS inspection and other security elements,
distributed denial of service (DDoS) solution, etc.
§ Load balancing solution.
§ Wireless controllers.
§ Share network services for servers and end
§ Network management and surveillance. This
includes: configuration management, network device inventory, network surveillance,
availability, capacity and environmental management, event management,
network flow management, network authentication, network visibility (packet
capture and analysis) and out-of -band secure
§ LAN-WAN design and integration: Internet
access, private circuits and even potential SD-WAN integration.
phase. If leading edge technology is part of the design, this phase tests
its functionality to demonstrate the solution feasibility (prepared in a
laboratory). A typical current case is SDN integration.
of the bill of materials (BoM) and procurement.
o Pilot section of the network to test the
prototype with real servers / users.
o Final roll-out of other components.
and evaluation of new network’s performance and stability.
and knowledge transfer.
to client’s operations area.
Existing Networks Assessment,
Analysis and Audit
Even if the
organization is proud of their network, there is nothing like having a
consultant with fresh eyes to validate its operational objectives, cost and
functionality. Retis consultants offer an impartial point of view in terms
of vendor dependency.
The benefit of the
network analysis and audit is to show customers
how efficient and cost effective
their existing network is.
A series of
interviews, information gathering and tests are applied. Tests use various
existing or additional tools and equipment to specific local or remote
segments in the network. After the analysis Retis delivers a document
containing diverse metrics (graphic and numeric) indicating the degree of
network efficiency and a series of recommendations
to modify the network so it will match the client’s needs.
The purpose of this
service is to:
operational costs if possible.
customers to improve their network functionality without always requiring
identify and resolve design issues.
availability and performance.
baselines to measure future improvements or changes.
At the end of a
network audit, Retis may offer additional services to redesign and
implement the required changes to the network as a consequence of this
Network Audit Plan Elements
to various key players and subject matter experts – SMEs: Stakeholders,
network management and operations teams, other infrastructure important
players and application and business personnel to explain priority
applications, criticality and flows at all production and administrative
of network documentation: diagrams, standards, locations and topology.
o WAN inventory: Internet and private circuit
list, service providers, cost, contract duration, capacity, QoS and SLAs.
inventory: Switches, routers, firewalls, load balancers. Lifecycle and
of high level network IP addressing and routing.
configuration and activity information collection.
analysis - general and detailed (mix of applications and top talkers)
and QoS analysis.
to key network elements configuration.
cost analysis of existing LAN/WAN elements.
o WAN: Circuit capacity changes, topology
changes, high level analysis of other service provider options in the
market for private and Internet circuits.
o LAN: Removal, consolidation, virtualization
or replacement of different elements.
o Exploration of new available technologies
and high level analysis of total cost of ownership and performance
infrastructure team meetings.
and technical presentations.
documentation is produced and delivered. Includes diagrams and detailed
recommendations organizations can follow.
have a wide experience in training in both professional or academic,
national and international areas. It is of great satisfaction for Retis
consultants to be able to transmit this knowledge.
Training is usually
offered to the customer as a consequence of the conclusion of a complex
project or audit. Customer’s engineers receive this benefit and are
therefore capable of configuring and administering the new technologies.
History and Company Resume
In 1996 the idea was
conceived to create a group of consultants entirely focused on the delivery of professional services in
the field of computer networks.
The new group led by Enrique Waizel and composed by Mexican
consultants then focused on the architecture and auditing of voice and data
networks and distributed applications covering all different layers
typically present in this kind of environments.
By the end of 1998,
in order to create an identity and give to the group more formality Retis was born. Retis means
“Networks” in Latin. This confirms the group’s objective. Mexico was the
geography first covered.
During 2001 an
effort was made to expand the company; a new office is opened in Canada.
The new office originally covered Western Canada and potentially the US
Retis Mission can be
summarized as follows:
To offer competitively
superior professional services in the field of voice and data
communications and related fields. These services can be offered in
different areas of expertise with customer satisfaction being the main
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