Hello, guest officers, today I will mainly summarize the more important knowledge points mentioned recently.
1. As a component of the management plane, NSX Manager is installed into a virtualized environment in the form of a virtual machine and requires an OVA file for installation and deployment
2. NSX Controller is also deployed in the form of a virtual machine, and during the deployment process, it is recommended to use an odd-numbered node cluster mode for deployment and install it on different ESXI hosts
3. The communication in the NSX Controller cluster and the communication with the ESXi host are all encrypted by SSL to ensure security
4. In the NSX Controller cluster, it is necessary to conduct Master election for roles to determine the primary NSX Controller
5. The slice technology is used in the NSX Controller cluster to achieve load balancing of its work tasks
6. NSX logical switches are based on distributed switches
7. VLAN divides the switch into multiple virtual local area networks, which are logically isolated from each other. VXLAN realizes the expansion of VLAN, so that the traffic is encapsulated and communicated in the tunnel
8. NSX logical switches have three traffic replication models in multi-purpose traffic forwarding: multicast mode, unicast mode and mixed mode
9. The ESXI host will obtain various information to the NSX Controller, and then perform unified centralized control and data forwarding locally
10. The Layer 2 connection between logical network and physical network can realize the conversion of VXLAN-VLAN through the bridging function of NSX Edge
11. NSX logical routing has two modes-centralized routing and distributed routing, which handle north-south traffic and east-west traffic respectively
12. NSX distributed routers support OSPF and BGP two routing protocols, while NSX Edge supports OSPF, BGP, IS-IS three routing protocols
13. The logical interface of NSX distributed router is called LIF, and its function is similar to the interface of physical router
14. NSX distributed routers need to be configured with at least one DLR-C-VM and NSX Controller together as a component of the control plane
15. The NSX distributed router is controlled by the control plane, so the gateways of all virtual machines can be found in the local hypervisor, and the next hop routing is selected. This is because the gateway is distributed and deployed on the Hypervisor of all ESXI hosts.
16. In actual deployment, a deployment model that uses NSX Edge as the next hop is generally used, instead of using a physical router as the next hop.