Dashboards for the network team
We cover in Chapter 11, SDDC Key Counters, that SDDC network monitoring can be divided into three layers:
- The first layer is the VM, which typically has only one vNIC. From a performance-monitoring point of view, this is relatively the simplest layer.
- The second layer is the hypervisor and NSX. Together, they provide virtual switches, often distributed across many hosts. With NSX, the hypervisor has a distributed router, a distributed firewall, an edge gateway, and a load balancer.
- The third layer is made up of the physical switches and routers in the data center. This also includes the WAN link and Internet connectivity.
To prove that the network is performing well, you need to do a few things:
- Show that there is no error
- Show that the network latency is low
- Show that utilization is below physical capacity
- Keep special packets, such as broadcast and multicast, to a minimum
We can deliver the preceding points, except latency. Chapter 15, Network Counters, explains...
