Click the blue text above and remember to follow us!Networking Requirements As shown in Figure 1, HostA connects to RouterA and RouterB through Switch with dual attachment. The user wishes to achieve: 1. Under normal circumstances, the host accesses the Internet with RouterA as the default gateway. When RouterA fails, RouterB takes over as the … Read more
20th Article:Multi-VRF CE / VRF-Lite In the previous section, we learned about more PE-CE routing protocols. In this section, we will start learning about Multi-VRF CE / VRF-Lite. Let’s dive in. Multi-VRF CE / VRF-Lite Overview When the interface connecting the CE is placed in the VRF table on the PE, all CE data coming … Read more
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First, for those who want to systematically learn about Python network automation and operations, I recommend the columns by @YiXin and @ZhuJiaSheng. Recently, “Xian Lai Wu Shi” reviewed the cross-domain solution of MPLS, simulating the Option A scheme. During the simulation, it was found that the ASBRs using OSPF protocol could not learn routes due … Read more
In the previous graduation project for the corporate network, some friends provided feedback that the project was too monotonous. After four years of university, this is indeed insufficient. Starting from this issue, we will discuss MPLS VPN! I hope everyone can understand it well enough to incorporate it into their graduation projects! If you need … Read more
SDNCan SDN network architecture replace TCP/IP architecture?1. SDN and NFV differ from traditional routing table selection rules, as they choose forwarding paths through OpenFlow flow tables. Does this mean that routing protocols like OSPF and EIGRP are no longer needed? Can we say that it has replaced the network layer?2. Overlay provides layer 2 flat … Read more
Today, I will present two small eNSP experiments: How can different subnet direct connection interfaces communicate with each other? To achieve full network intercommunication, we need routers to exchange routing information between different protocols or run the same routing protocol across the entire network. However, in actual networks, it is often necessary to run multiple … Read more
How to Design and Deploy an Enterprise Network? In enterprise network architecture, OSPF (Open Shortest Path First) and VLAN (Virtual Local Area Network) are two commonly used technologies. Their combined use can provide efficient network management and optimization. OSPF is a dynamic routing protocol used to select the best data packet transmission path within an … Read more