Recent Posts

Enterprise Infrastructure

Errdisable recovery

Switches can automatically detect error conditions on each of their ports. When an error is detected, the switch puts the port in “errdisable” ...
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Enterprise Infrastructure

Managing MAC Addres Table

Switches operate at layer 2 of the OSI model (Data Link). It sends frames based on destination MAC addresses (Media Access Control) found ...
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Basic information about my Fortigate unit

Basic information about my Fortigate unit

These days, I have had to configure and monitor some Fortigate equipment, most of it is done via GUI, but it is necessary ...
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Enterprise Infrastructure

Macro switchport host – Cisco IOS

A few days ago, when I was configuring the ports of a switch and reviewing the operation of STP, I found in the ...
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Enterprise Infrastructure

Comando “Default interface” – Cisco IOS

The “default interface” command is used to return an interface to its default configuration; its implementation is in global configuration mode, and the ...
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IPv4 address classes

Clases de direcciones IPv4

With the implementation of the Internet, its designers decided to create classes of networks based on the size of the network; each network ...
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IP Addressing

Direccionamiento IP

IP addressing is one of the most challenging and essential topics in TCP/IP. It is a crucial function for Layer 3 protocols because ...
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TCP/IP MODEL

MODELO TCP/IP

Today’s most popular protocol in use is the Transmission Control Protocol/Internet Protocol (TCP/IP). Currently, the Internet and most enterprise intranets use TCP/IP because ...
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