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OSPF Configuration Fundamentals
OSPF Configuration Fundamentals This section describes OSPF configuration fundamentals and builds upon the configuration of OSPF as described in the CCNA and CCNP certification course. https://youtu.be/GvDQfJCAsas Enabling OSPF in Cisco IOS Software OSPF configuration is enabled in Cisco IOS software by issuing the router ospf [process id] global configuration command. The [process id] is locally…
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Learn TACACS+ vs RADIUS AAA and Kerberos
TACACS+ vs RADIUS - AAA As identity security and access management become more complex, networks and network resources require safeguarding from unauthorized access. Authentication, Authorization, and Accounting, referred to as AAA (Triple-A), provide the framework that controls and monitors network access. We refer to the IINS exam in this post however, this exam has now…
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Intrusion Detection and Prevention – IDS/IPS
Intrusion Detection and Prevention The rapid growth of the Internet has resulted in the vast proliferation of viruses, worms, Trojans, and other malicious codes and programs. This makes modern-day networks easy targets because infection can spread across the network rapidly. Due to this growing threat, networks need to be designed and equipped with solid intelligence…
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RSTP Tutorial – Rapid Spanning Tree Protocol
Rapid Spanning Tree Protocol Overview The IEEE 802.1D standard was designed at a time when the recovery of connectivity after an outage within a minute or so was considered adequate performance. In the IEEE 802.1D Spanning Tree Protocol (STP) , recovery takes around 50 seconds, which includes 20 seconds for the Max Age timer to…
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Prevent STP Attacks
Spanning-Tree Protocol (STP) Attacks The Spanning-Tree Protocol (STP) is used in redundantly connected Layer 2 networks to prevent loops by placing interfaces or ports in either a blocking or a forwarding state. Because STP is a core component and requirement of the CCNA certification, this section will not be covered in detail. Instead, this section…
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