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Next Generation Networks Design

10.2019

1st Tech Meeting Series – Enterprise Security Overview – Summary

On 8th of October 2019 we hosted first event from the new series: Tech Meeting Series. The conference cycle is intended for IT departments, engineers and IT managers who want to follow latest technology trends, want to talk about the technology with others, share experience and look for solutions best suitable for their organizations.

Author: Grandmetric
05.2019

Grandmetric to deliver first SD-WAN implementation in Poland

We are very proud to announce that Grandmetric successfuly delivered the first Software-Defined production network in quarter 1 2019 for Pfeifer & Langen Polska S.A. The implementation was part of network and IT operations optimization project for one of the largest sugar manufacturer in this part of Europe.

Author: Grandmetric
04.2019

What is SD-WAN (SDWAN)

Specifically, the paradigm called data, control and management plane dissagregation and network automation. Here, you can read about paradigms and characteristics that the SDN idea brings. Dissagregation approach simplifies the process of building & maintaining something called network overlay. Overlay is an abstraction that SDWAN idea relies on (you will read more on dissagregation and overlay concepts below).

Author: Marcin Bialy
04.2018

IPSec tunnel between Cisco IOS router and AWS VPC. Static VTI and crypto map with HSRP redundancy.

Recently i was asked to advise in the following scenario: VPN tunnel between AWS VPC and Cisco IOS routers on DC prem. Nothing sophisticated but: Two ISR 4k, HSRP VPN redundancy, legacy crypto maps in production (several working vpns) and Static VTI (AWS). Two Crypto structures sourced from one HSRP. I have put the results on blog.

Author: Grandmetric
03.2018

Cisco Viptela SD-WAN components and connectivity (Part-2)

This post is dedicated to provide an overview of the Viptela policies. We go into the the details of the various kinds of policies and the overall policy architecture. In our earlier post we had focused on Viptela concept, Viptela SD-WAN components and how to authenticate the vEdges to Viptela cloud and setup basic connectivity between sites.

Author: Jacek Ozga
03.2018

Smart Cities and TSPs Value Propositions – Post from Grandmetric Advisor

This post provides introduction to Smart Cities including: definition, drivers for smart cities, use cases, components of smart cities, challenges, and Telecommunications Service Providers (TSPs) Value Propositions for smart cities.

02.2018

Cisco Viptela SD-WAN components and connectivity (Part-1)

This article is the first part in the series about SD-WAN technology where we learn step by step what exactly Software Defined WAN (SD-WAN) is, how to build and use it, how and why using this concept could be beneficial for enterprises or even service providers and how to transform the current enterprise WAN to a SD-WAN solution. We are going to start with looking closely at Cisco Viptela product, however later on, we will describe other SD-WAN platforms in a similar manner.

Author: Jacek Ozga
12.2017

What is Software Defined Network (SDN)?

No 1 principle of SDN is to separate the devices abstraction that transport the network traffic (forwarding plane) from control plane abstraction, in such a way that it enables to control the network functions by the means of software layer. In practice it can be systems, web applications, and scripts.

Author: Marcin Bialy
10.2017

Which Next Generation Firewall to choose – Report

Often, during meetings with clients, network engineers and security specialist there is following question posed: “What firewall product best suits their environment and which one is the best currently on the market?” Like almost always the answer could be “Well, it depends” …

Author: Marcin Bialy
11.2016

Introducing “Design & Build Enterprise Class Network” Training

We are proud to announce Network Fundamentals hands on training: “Design & Build Enterprise Network”, you can read more about this course by following the below links: https://new.grandmetric.com/training/design-and-configure-vpn-for-enterprise-wan/

Author: Marcin Bialy
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