Recent Posts

Enterprise Infrastructure

STP: Multiple Spanning-Tree

By JMCristobal
April 1, 2021
MST is a standard published by the IEEE to create different STP instances for groups of VLANs to have more than one STP ...
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Enterprise Infrastructure

STP: Rapid PVST+ configuration

By JMCristobal
March 29, 2021
The iEEE 802.1w standard was developed using the main concepts of 802.1d (Common Spanning-Tree) but with a faster convergence time. It can be ...
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Enterprise Infrastructure

STP: Protection Features

By JMCristobal
March 25, 2021
Root Guard The Root Guard feature was developed as a means to control when a candidate root bridge switch connects to the network. ...
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Enterprise Infrastructure

STP: Optimization methods

By JMCristobal
March 22, 2021
Some additional methods allow faster STP convergence if a link failure occurs. Portfast Allows fast connectivity on ports by immediately switching to the ...
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Enterprise Infrastructure

STP: PVST+ configuration

By JMCristobal
March 15, 2021
PVST+ (Peer-VLAN Spanning-Tree) First of all, let’s remember: Common spanning-Tree (CST) only handles one instance of STP on switches, based on 802.1Q trunks, ...
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Enterprise Infrastructure

STP – Timers, Port Roles and States

By JMCristobal
March 11, 2021
Choosing root ports Once the root bridge is chosen, a Root Port must be chosen for each switch, which is not the root ...
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Enterprise Infrastructure

STP Overview

By JMCristobal
March 8, 2021
Spanning-Tree Protocol can exist between two devices (switches). Multiple active paths between devices cause loops in the network. STP is a layer 2 ...
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Enterprise Infrastructure

Etherchannel PAgP y LACP

By JMCristobal
February 19, 2021
The audio of the video is only in Spanish EtherChannels can be negotiated between two switches; there are two protocols for this negotiation: ...
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