HomeHome » Contact Us   » This domain may be for sale

Used Cisco Routers

  • Cisco CCNP Certification / BSCI Exam Tutorial: ISIS Hellos And Adjacencies
    In my last ISIS tutorial, I mentioned that while ISIS and OSPF are both link state protocols, their actual operation differs greatly. To pass the BSCI exam and earn your CCNP, you'll need to know these differences! Today, we'll take a look at ISIS Hello types and the adjacency types that form through the use of these Hellos. Hello packets have been mentioned several times with ISIS, and with good reason. Hello packets are the heartbeat of OSPF a Read More...
  • CCNA / CCNP Home Lab Tutorial: A Guide To Cable Types
    When you're putting your CCNA and/or CCNP home lab together, you're not just buying routers and switches you're creating a blueprint for success. There is no better way to learn about how real Cisco routers and switches work than to work with the real thing! Of course, it's not enough to just get the routers and switches you've got to have the right cables and other devices to allow them to communicate. Let's take a look at the different cables Read More...
  • Cisco CCNA / CCNP Exam Tutorial: EIGRP Dual Queries, SIA, And Stub Routers
    EIGRP is a major subject of the CCNA exam, and Cisco goes into even more detail with EIGRP on your CCNP exams. Part of that detail is the purpose and configuration of EIGRP stub routers. A problem with EIGRP comes in when a successor is lost and there is no feasible successor. DUAL doesn't give up that easily, though. DUAL will mark the route as Active, indicating that the route is being calculated and cannot be used to route data, and will s Read More...
  • RELATED ARTICLES