Meet Erik, a college graduate with a degree in computer science, father and very busy life. Erik was excited to start his career in the IT industry, but he knew that he needed to stand out from the competition. After researching different certification options, Erik decided to pursue the CCNA certification. To prepare for the … Read more
A loop-free topology is a network design that does not contain any loops or circular paths. This is important because loops can cause problems in a network, such as broadcast storms and excessive bandwidth consumption. Here are some steps you can follow to design a loop-free topology: By following these steps, you can design and … Read more
Rules Cisco routers support two types of ACLs: •Standard ACLs – ACLs only filter at Layer 3 using the source IPv4 address only. •Extended ACLs – ACLs filter at Layer 3 using the source and / or destination IPv4 address. They can also filter at Layer 4 using TCP, UDP ports, and optional protocol type information for … Read more
The following list describes the five different types of OSPF link-state packets (LSP). Each packetserves a specific purpose in the OSPF routing process. 1. Hello: Used to establish and maintain adjacency with other OSPF routers 2. Database description (DBD): Contains an abbreviated list of the sending router’s link-statedatabase and is used by receiving routers to … Read more