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Showing posts from June, 2023

SDWAN: Chapter-1: Introduction to SDWAN

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SD-WAN Definition A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows enterprises to leverage any combination of transport services – including ILL, MPLS, LTE & broadband internet services – to securely connect users to applications hosted within the Data Centers. It is a virtual WAN architecture that gives enterprises the flexibility to take maximum advantage of any combination of transport services for securely connecting users to applications. The top five advantages of SD-WAN technology include improved performance, boosting security, lowering complexity, enabling cloud usage, and reduced cost. So, in nutshell, A software-defined wide area network (SD-WAN) is a network that is abstracted from its hardware, creating a  virtualized network overlay as a Hub-Spoke topology   Need of SD-WAN Clients are using the traditional MPLS network to cope up with their application connectivity within the DC (Active-Passive or Active-Acti...

Introduction to Fortinet Firewall

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Today's Fortinet Next generation firewall prvides flawless covergence irrspective of scale to any location The Fortinet  FortiOS  operating system provides deep visibility and security across a variety of form factors. The FortiOS has evolved in such way that today, it is capable of unified Management and consistant security across complext hybrid environment. Below are the FGT NGFW Use cases 1. Data Center (Hyperscale firewalls) 2. Branch (AI/ML Security driven architectire along with SD-WAN) 3. Campus (NAC integration along with FortiOS provides visibility and protection) 4. Cloud (Available across all cloud platform. Provides public and private cloud protection) 5. Segmentation (OT use cases) Fortinet NGFW is available in many different hardware models based on Requirement Data Center (High End): 7K, 6K, 3K, 2600F, 1800F, 1000F Campus (Mid-Range): 600F, 400F, 200F, 100F Branch (Entry-Level): 80F, 70F, 60F, 40F FortiOS: Lets look at the common different options offered by Fo...