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Virtual eXtensible LAN (VXLAN)

VXLAN Improvement to Datacenter Fabric In this section, I am going to talk about data center fabric journey and how Virtual eXtensible LAN emerged. I will start with STP, then vPC and PortChannel. I won’t talk about FabricPath. We will finally jump in to VXLAN in Clos networks. STP Drawbacks Let’s architect our Clos topologies […]

Static Routes

Static Routes In this post we are going to focus on the concept of the static route configuration on the firewall. The first thing that comes to our minds, when we see the static routes is that somebody has to configure that static route. Static routes are manual labor we have to implement on the […]

Loop

Loops Loops are very useful for automating repetitive tasks. when you want to run a series of commands repeatedly until a certain condition is reached. Type of loops: Simple For loop Range-based for loop C-Styled for loops Infinite for loop Simple For Loop: for var in word1 word2 … wordN do Statement(s) to be executed […]

Verify The Data Plane

Verify The Data Plane As our last test in previous post https://old.smenode.com/adding-a-default-route/ regarding the basic core functionality of the firewall. Let’s put a pc behind the firewall and make sure that pc has access out to the public internet as well. So in our topology: We will make sure the VPC123 has an ip address […]

Network Simu/Emu Tools, EVE-NG [02]

we've come from the previous page here… Installing Client tools | Linux Client integration pack According to the GitHub source it says that the repo contains the equivalent of EVE-NG windows Client-side pack for Ubuntu/Debian and other Linux distros.Currently supports the following URL schemes: telnet:// capture:// docker:// vnc:// Installing eve-ng-integration from the official PPA sudo […]

MPLS Overview

MPLS Overview Multiprotocol Label Switching (MPLS) is a protocol that uses labels to route packets instead of using IP addresses. In a traditional network, each switch performs an IP routing lookup, determines a next-hop based on its routing table, and then forwards a packet to that next-hop. With MPLS, only the first device does a […]

LIPC1-013-Basic Commands

Removing files or directories “rm” stands for remove, so as Its name shows, this command deletes files, directories, and even symbolic links- which we will cover in later lessons-. “rm” command works silently, so users must be careful using it because this command deletes files permanently and users can not restore them after deleting. Although […]

Network Simu/Emu Tools, EVE-NG [01]

Lab Introduction It is undeniable that during a learning process it would be helpful if we could deal with the examples of real-life challenges in order to commit to memory and put them into practice. For practicing in the realm of data transmission network. They help to simulate and emulate the traffic flow, configurations, related […]

LIPC1-012-Basic Commands

mv Command To move files or directories from a source to a destination in Linux, use the “mv” command. This command has got two functions. First, moving files or directories, and second, renaming a file or directory. It can also move multiple files or directories. “mv” command, as we explained in the “cp” command, works […]