Implementing and troubleshooting networks

Code: SP4 Infrastructure ALEF Difficulty: Advanced

Current dates

Prague, CZ
On-line, CZ
Prague, CZ
On-line, CZ

Training format

As a standard, we implement a full-time course (onsite or ILT *) in the ALEF Training Center. Upon agreement, it is possible to implement the course at the client's premises. The course can also be implemented online (vILT **) via a video conferencing platform - Cisco Webex meetings. Instructor-led virtual training is a combination of the best of a traditional classroom course and interactive training without having to leave your own office or the comfort of your home. Convince yourself of top quality transmission, video calls and effective team collaboration.


  • ILT - Instructor Led-Training * - instructor-led training in the classroom. ** vILT (Virtual Instructor-Led Training) - this is a form of distance learning, where the instructor conducts training from the classroom through an online platform to which students connect from their offices or the comfort of their home.


The course is designed for candidates who need to have theoretical and practical (configuration) knowledge for implementing and troubleshooting networks using time (frequency) synchronization. Interfaces of usually used GPS receiver, SyncE / PTP as the protocol for the distribution and selection of the best available clock source of available accurate time sources in the Synchronization network. After completing the course, the participant will be familiar why we use time synchronization in a network with the functionality and features of SyncE and PTP. Basic configuration and
troubleshooting related to this area.

Duration in days: 1


Knowledge of internetworking, TCP / IP, IP routing protocols including BGP and configuration of Cisco routers in the range of training A0/ICND and A1/ICND2, SP1/MPLS.


" Introduction to frequency, phase and time synchronization, terminology " Time synchronization, time distribution, hierarchy " Synchronous Ethernet (SyncE) " Precision Time Protocol (PTP 1588v2) " External synchronization input and output on Cisco devices " ASR903 - Time Synchronization Architecture " ASR903 - Configuring time synchronization " ASR903 - Configuration SyncE " ASR903 - Configuration PTP " Circuit Emulation Services (CES) = TDM Transport over MPLS " Configuration SATOP and CESoPSN on ASR903 " Time synchronization IOS-XR (ASR9000) platform, architecture and configuration


Participants will receive a copy of the presentation in virtual form.

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Tailored trainings

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Training rooms

ALEF operates with training rooms match submarine's style to unexpected, unusual while still being smart and available to work in. We have several type of rooms for small groups and up to larger rooms with modern technical equipment and supportive technologies we provide.

We also deliver the high-quality multimedia sharing for efficient, effective virtual communication on a global scale. In the Competence Center is also available Spark Board. Cisco Sparkboard integrates the most common tools needed for team collaboration in physical meeting rooms into a single elegant device. It also combines white board, video or audio conference features.

All ALEF training centres operates with testing centre that provides full acess to take an exam and get certificate provided by our vendors. ALEF provides to our customer complete management and administration.

Training rooms – Prague

Team of lecturers

Our team - consisting of more than 50 instructors - offers a full range of technological knowledge in the field of routing, switching, security, collaboration and data centers. The expertise of instructors is evidenced by a range of top-level international certifications.

The uniqueness of our lecturers lies mainly in their extensive experience in connection with each project, allowing them to respond very flexibly to any question or suggestion from students, and to pass on their practical knowledge to the participants of these courses. Thanks to the synergy of the company’s reliable operation and many years of experience, we have been very flexible in responding to the changes prepared in the Cisco field, so we can guarantee you a wide range of certified courses that enable you and your colleagues to acquire the necessary know-how for future certification tests.

In addition to the certified trainings, we offer special courses that are focused primarily on the development of the necessary configuration skills.


200 +



Training rooms




Certified lecturers




Our goal is to provide professional training services and the uniqueness of our training lies in the transfer of knowledge, both at theoretical and practical level. The lecturers are professionals with many years of experience in comprehensive implementation of ICT.

This is why we appreciate the positive feedback we receive. We express thanks for all feedback, based on which we will continue to grow.

Our company, ALEF NULA has been providing training in the field of IT - including also certified and knowledge enhancing trainings - since 1995. Nowadays, we have more than 20 professionally equipped training rooms in 7 countries of Central and Eastern Europe, with more than 50 vocational trainers and over 200 courses.

Our portfolio includes on-site courses, online courses, customized training, consultations, tutorial programs and e-Learning. We regularly organize free-of-charge seminars or webinars, after which you can continue your training with the professional courses included in our offer. Thanks to this, we train over 3000 students each year.


Collaboration with our partners is an essential part of our growth and success.

CiscoCisco is the world’s largest supplier of network technologies that constitute the basis for data and voice communication, Internet video communication and corporate computer networks. There is a multi-level partnership between ALEF and Cisco. In the field of implementation of solutions, it is a qualified Cisco Gold Partner, and in the field of education, a qualified Cisco Learning Partner Specialized.

NetAppThe company NetApp is a global leader in data storage and data management. Thanks to continued investment in the development of its solutions, it has been able to maintain its leading position in the introduction of innovative approaches since 1992.

f5F5 helps organisations create a flexible IT infrastructure that enables them to respond immediately to business needs, thereby supporting their economic growth.

gopasGOPAS Computer School is the largest IT training provider in the Czech and Slovak market. Each year about 30 000 students attend vocational trainings, most of whom are IT professionals. In spite of operating in a relatively small market, GOPAS is one of the largest IT training service providers in Europe.

DigiskillsDigiskills helps build new digital competencies. It facilitates people’s work with technology and significantly increases their productivity and level of satisfaction. “We believe that everyone can enjoy their work. We know what hinders people at the heart of their work: routine activities, time-consuming operations, ineffective ways of communication, and outdated work habits and processes. We motivate to try new things and innovate. We are sensitive to all prejudices and concerns regarding the use of computers and smartphones. We show that technology and innovation do not only lie in sophisticated inventions, but can also make everyday life easier for all of us. We explain the technology in human language. We are not IT specialists, but users who want to get the most out of the various apps and devices. And we will teach you that, too.”

AWSAmazon Web Services (AWS) fulfils a global leading position in the field of Public Cloud and IaaS. Today AWS platform-based IT solutions count as a standard within the framework of amost every technology (Cisco, NetApp, F5, etc.) that we offer to our clients. ALEF NULA has become an official AWS Consulting Partner, enabling us to offer our clients a wide range of solutions not only in the field of public cloud or hybrid IT (a combination of on-premise and public cloud), but also specialized, free of charge seminars or customized training in these fields.

vmwareVMware is one of the largest virtualization software providers in the world. The ALEF partnership lies primarily in activities within the framework of Cisco Data Center specialization. ALEF Training Center also offers a special WMware course to manage end workstations.

Pearson VUE is a global certification authority that offers a portfolio of hundreds of IT tests in the field of information and communication technologies. It includes the technology of companies Cisco Systems, VMware, Adobe, Citrix, Tanberg and CompTIA. Pearson VUE has stringent requirements for the test centers of its partners which are met by ALEF Training Center.

GoodeaThe company Goodea is a leading provider of architecture related trainings and consulting services. Goodea's trainings cover the entire area of architecture from the strategic level to detailed architecture solutions.

It offers courses focused on specific standards (TOGAF, ArchiMate, Open Agile Architecture), overview courses (Enterprise architecture, Solution architecture) and courses focused on a specific area or industry (Business architecture, Banking IT architecture) or design methods and architecture management (Agile architecture).

The course is always led by experienced trainers with a long-term experience in the field which they then transform to the case studies and examples used to illustrate the topics.



Pernerova 691/42
186 00 Praha 8
Česká republika

IČ: 61858579
DIČ: CZ 61858579

Tel.: +420 225 090 240
Fax: +420 225 090 112

GPS: 50.058131,14.473972


Advice on Personal Data Protection (Information)

The information stated below was provided to you, as a personal data subject, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC - also referred to as abbreviation GDPR (General Data Protection Regulation).

The key interest and philosophy of ALEF Group companies is the satisfaction of our customers and those with whom we build mutual business relationship. For that purpose we use provided personal data, which we carefully protect and process in accordance with applicable legislation.

Below is a detailed summary of how ALEF Group incl.  

  • ALEF Distribution CZ, s. r. o., Pernerova 691/42, Praha 8, email:;
  • ALEF NULA, a. s., Pernerova 691/42, Praha 8, email:;
  • ALEF Distribution SK, s. r. o., Galvaniho Business Centrum IV, Galvaniho 17/C, Bratislava 2, email:;
  • ALEF Distribution HU Kft., Váci út 30. 3. emelet, 1132 Budapest, email:;
  • ALEF distribucija SI, d.o.o., Brnčičeva 15B, Ljubljana, email:;
  • ALEF Distribucija d.o.o., Ul. Grada Vukovara 284, Zagreb, email:;
  • ALEF Distribucija Adria, d.o.o., Bulevar Mihajla Pupina 10L, Novi Beograd, email:;
  • ALEF Distribution RO, Str. Oltetului Nr. 15, Bucuresti, email:

receive, process and store the personal data provided and what are the data subjects' rights under current legislation.

What personal data do we use and to whom do we access it?

ALEF Group companies (Controller) process the data only for purposes related to organizing seminars and training (organizational part ALEF Training, Data includes name, surname, e-mail.

Recipient of such personal data is the Controller and any entity linked in any way to the Controller in terms of assets, whether directly or indirectly, and entities that are members of the ALEF Group, even in the case such entity is in a third country (i.e. outside the European Union), if the European Commission has decided that such third country ensures the appropriate level of personal data protection (for a list of countries see, for example, a and employees of the aforementioned entities. Business partners of the Controller, entities linked to the Controller in terms of assets, Processors of personal data or public power authorities  can also be recipients of personal data.

What is the purpose of personal data processing?

Provided personal data is used only for purposes related to providing our services of seminars and training organization.

What is the legal basis for personal data processing?

In case of personal data provided  for purposes related to providing our services of seminars and training organization, we process your personal data in the above mentioned scope in our legitimate interest because we need to identify your person to necessary extent.

How long is the personal data stored?

Personal data is stored for the duration of the business relationship and then for a period of 4 years after its end.

As a personal data subject, what are your rights?

Request from the Controller access to the personal data, i.e. you have the right to obtain from the Controller a confirmation as to whether or not your personal data are being processed, and, where this is the case, you have the right to access them together with the following information:

  • The purposes of processing;
  • The categories of personal data concerned;
  • The recipients or categories of recipient to whom the personal data have been or will be disclosed;
  • The envisaged period for which the personal data will be stored, or, if not possible, the criteria used to determine that period;
  • The existence of the right to request from the Controller rectification or erasure of personal data or restriction of processing of personal data or to object to such processing;
  • The right to lodge a complaint with a supervisory authority;
  • All available information about the sources of personal data;
  • The existence of automated decision-making, including profiling, about the procedure used, as well as the significance and the envisaged consequences of such processing for me;
  • The right to be informed about appropriate safeguards that relate to the transfer of personal data to third countries (i.e. outside the European Union), in the event the personal data are transferred over to such third country;
  • The Controller shall provide you with a copy of the personal data undergoing processing.

Request the rectification of personal data, i.e. to have the Controller, without undue delay, rectify inaccurate personal data concerning you, and taking into account the purpose of the processing, you also have the right to have incomplete personal data completed, including by means of providing a supplementary statement;

Request the erasure of personal data (“right to be forgotten”), i.e. to obtain from the Controller the erasure of personal data concerning you without undue delay, where one of the following grounds applies:

  • The personal data are no longer necessary in relation to the purposes for which they were collected or otherwise processed;
  • You withdrew consent on which the processing is based and there is no other legal ground for the processing;
  • The personal data have been processed unlawfully;
  • The personal data have to be erased for compliance with a legal obligation;
  • The personal data have been collected in relation to the offer of information society services;
  • The right to erasure does not apply if there is an exception, in particular because processing of personal data is necessary for:
  • Exercising the right of freedom of expression and information;
  • Compliance with a legal obligation which requires processing by Union or Member State law to which the Controller is subject;
  • For the establishment, exercise or defence of legal claims;

Request restriction of processing of personal data, i.e. the right for the Controller to restrict the processing of personal data in any of the following cases:

  • You contest the accuracy of the personal data processed, processing will be restricted for a period enabling the Controller to verify the accuracy of the personal data;
  • The processing is unlawful and you oppose the erasure of the personal data and request the restriction of their use instead;
  • The Controller no longer needs the personal data for the purposes of the processing, but they are required by you for the establishment, exercise or defence of legal claims;
  • You objected to processing of personal data in the event the personal data are processed for the purpose of legitimate interests of the Controller, including profiling, in such case the Controller will no longer process the personal data, unless legitimate reasons for processing are proved that dominate over the interests or rights and freedoms of the personal data subject, or the establishment, exercise or defence of legal claims;

Where processing has been restricted personal data shall, with the exception of their storage, only be processed with your consent or for the establishment, exercise or defence of legal claims or for the protection of the rights of another natural or legal person or for reasons of important public interest of the Union or of a Member State;

Personal data portability, i.e. the right to have the Controller transfer your personal data processed automatically based on your consent to another Controller in a structured, commonly used and machine-readable format; when exercising your right to data portability you have the right to have the personal data transmitted directly from one controller to another, where technically feasible;

The right to object; in the event your personal data are processed for direct marketing purposes, you have the right to object at any time to processing of personal data concerning you for such marketing, which includes profiling to the extent that it is related to such direct marketing, and in such case the personal data will no longer be used for such purposes.

File a complaint, for example by sending an e-mail or letter to the Controller’s contact details specified above; a complaint about the Controller’s actions can be made to the Office for Personal Data Protection, registered office: Pplk. Sochora 27, 170 00 Prague 7, Czech Republic.

You can apply all of the above mentioned rights to the Administrator by sending an e-mail to the addresses given in the introductory part of this information or by letter.

Terms and Conditions

Business Terms and Conditions for Training and Tests

of ALEF NULA, a.s. (hereinafter the “TaC”)

Version 1.0
Effective from November 2020

1. Introductory Provisions

These terms and conditions are operated by the legal relations between the client of onsite and online training and/or courses and/or exams if the training or course is completed by an Exam (hereinafter "training") and the training provider, ALEF NULA, corp., ID No. 618 58 579, with its registered office at Pernerova 691/42, Karlín, 186 00 Prague 8, file number B 2727 kept at the Municipal Court in Prague (hereinafter referred to as the “ALEF Company”).

These terms and conditions could be changed unilaterally by ALEF. The rights and the obligations of the training order by the client and ALEF are managed by the T&C as amended effectively at the time the order was demonstrably sent to ALEF; such wording of the T&C is binding for the client of the training.

It is up to the training client to continuously monitor the current wording of the T&C (the wording of the T&C is continuously indicated by the version number) and is continuously familiar with the T&C. All T&C versions, including the currently effective version, are published on the website ALEF

Training prices are listed on the above website. Listed prices do not include VAT.

2. Ordering Training

Training orders can be ordered by the training client via the website or by email at Each order must have the requisites that are needed for invoicing and specific registration, namely:

  • data of the legal or natural person (training client) to which it will be
  • an invoice issued, including the registered office and VAT number, if he is a VAT payer
  • an explicit reference that the order and the rights and obligations arising from it are operated effectively T&C of ALEF published on the web website, with which the training client is familiar and which he undertakes to follow
  • name, surname, and contact details of the participant (s)
  • the type of training and the date on which the participant (s) wish to attend
  • the selected method of payment (invoice, ALEF Training Credits, or Cisco Learning Credits, if available to the training client)

After receiving the order each training client and each registered participant will receive a confirmation within 48 hours about the vacancy of the training. In the case that the date of the selected training is full, the training client and each registered participant will be contacted with an offer of alternative dates.

At least one week before the start of the training, the participants of the training will receive an invitation with more detailed organizational information, such as the date and time of the training, the venue, or parking options.

ALEF is entitled to change the format of full-time training to on-line training and vice versa at any time. The other provisions of these T&C are not affected.

Repeated participation in online training

Repeated participation is only available for vILT Cisco certified training.

* vILT (Virtual Instructor-Led Training) - it is a form of distance learning where the instructor conducts training from the classroom through an online platform.

You can apply for repeated participation within 1 month from the end of the training by sending an e-mail to the training department.

You can indicate the specific date you have chosen in the e-mail. In case it is occupied, we will contact you with a potential replacement date.

The condition for repeated participation is the payment of the fee for the first term of the training. You have the option of repeated participation for a period of 12 months from the last day of the first training date. It is not possible to repeatedly participate in the training if the course is withdrawn from our offer or no other date is announced within the given range.

3. Payment for Training

The participation fee for the training includes tuition, use of computer technology, study materials, and issuance of a certificate of completion of the training. The price of the training also includes refreshments, including drinks of various kinds and a hot lunch if the training takes place on the premises of the Alef Training Center. In the case of training outside these areas, refreshments and lunch are a matter of agreement between the training client and ALEF.

The payment of training in the case of existing customers is after the training, normally within 14 working days from the delivery of the invoice. For new customers, an advance invoice is issued for the first training, which the training client is obliged to pay by the beginning of the training. After the training, the customer of the training is issued an invoice - a tax document. In the case of a problem-free payment, i.e. in the invoiced amount and deadline, each additional training is already paid for in the same way as in the case of existing ALEF customers, i.e. only after its completion within 14 working days of delivery of the invoice.

If the company has ALEF Training Credits (ATC), it is possible to use them as payment for the relevant training or certification. Information on the current amount and how they are drawn will be provided by the ALEF Training Team of ALEF. 

If the company has Cisco Learning Credits (CLC), these can only be used for Cisco certified training.

In the case of a delay in the payment for the training, the training client is obliged to pay the ALEF interest rate on arrears in the amount of 0.05% of the amount due for each day of delay.

4. Cancellation Conditions

The request for free cancellation of participation in certified training must be sent no later than 35 working days before the start date of the training to, or to the relevant employee of the ALEF Training Team of ALEF, by whom the order was confirmed. In case of cancellation less than 35 working days before the start date of the training, the cancellation conditions are as follows:

  • cancellation of participation in certified training less than 35 working days before the start date of the training - cancellation fee is (excluding VAT) is 50% of the training price (excluding VAT)
  • cancellation of participation in certified training less than 10 working days before the start date of the training - cancellation fee (excluding VAT) is 100% of the training price (excluding VAT) 

The request for cancellation of non-certified training must be sent no later than 10 working days before the start of the training start date. If the request is sent later, a cancellation fee (excluding VAT) of 100% of the training price (excluding VAT) will be charged.
Cancellation fees are due within 14 working days of receipt of the invoice.

After receiving the registration for the certification test, which completes the certified training, the order of the certification test cannot be canceled. The date of the test can be changed, but it is necessary to contact the person who confirmed the registration for the relevant test regarding the change of the date, no later than 3 working days before the planned start of the certification test.

An administrative fee of EUR 20 (excluding VAT) is charged for the second changing of the certification test date. This administrative fee is payable within 14 working days of receiving the invoice. Information on the change of date must be sent no later than 3 working days before the training to the If a change of date is possible, it will be confirmed by ALEF.

In the case of a delay of the payment of the cancellation fee or administrative fee, the obligation arises to pay interest on arrears in the amount of 0.05% of the amount due for each day of delay.

5. Organisational Changes

ALEF (ALEF Training Team) reserves the right to cancel the planned training date in case of unexpected events, the illness of the lecturer, interruption of the supply of services (such as electricity, internet, etc.)

ALEF also reserves the right to cancel the training date if the sufficient number of participants required for its implementation is not met. In such a case, the training client and the registered participants will be contacted with a new possible date.

6. Electronic Materials

A new trend of providing electronic training materials for certified Cisco training, participants in the full-time training must bring a laptop, or on request, we can provide temporary use of our laptop free of charge. The request needs to be done at least one week before the start of the training.

7. Protection of copyright and other rights of third parties

It is expressly forbidden to make any audio or video recordings of the training. In case of violation of this prohibition by the participant/participants of the training, the participation in the training to the participant/participants may be terminated with the proviso that in such a case the training client is not entitled to a refund of the training price of such participant/participants.

It is expressly forbidden to distribute received digital and printed training materials for training. The training materials are exclusively for the participant/participants of the training.

8. Concluding Provisions

These T&C, legal relations arising from or related to it, including non-contractual relations (if the choice of law is permissible for them), are governed by the law of the Czech Republic with the exclusion of conflicting rules of private international law. In matters not regulated by these T&C, the legal relationship between the training client and ALEF is governed in particular by the Civil Code.

In case of disputes arising from these T&C or in connection with them, the local jurisdiction of the court of the first instance is given as follows: if the jurisdiction of regional courts is given, the Municipal Court in Prague has territorial jurisdiction, if the jurisdiction of district courts is locally competent District Court for Prague 8.

The provision of the previous sentence is binding only if the legal relationship between the training client and ALEF is a legal relationship between entrepreneurs in their business activities.

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