One of the typical questions when considering NSX deployments is who should be the administrator? However this is often a two horse race, between Network and Virtualization Systems Administrators. Although NSX is SDN (software defined networking), the driver behind much of what it does is due to security requirements, using vlans to segregate layer two networks, […]
Tag Archives: NSX
NSX – Availability and Redundancy
vSphere administrators normally have two great fears, failure of Storage and failure in the network layer, as both of these can result in 100s or 1000s of virtual machines simultaneously going off line. Software defined networking such as NSX or vShield have the potential to bring those failures even closer to home. How has NSX been architected to make it […]
Deploy NSX – Unable to read data from the transport connection
There is a KB 1032561, but in my case it wasn’t the isssue NSX deployment failed with the error: Unable to read data from the transport connection I simply redeployed with a different IP, an had no issue, (hope that doesn’t happen in production…)
Reduce nsx controller size
NSX Controllers are resource hungry and if you are going to run 3 at a time, it adds up at 4 cpus and 4 Gb each Power off the controllers one at a time, and modify the cpu and memory in the vmx file numvcpus = “2” memSize = “2048” I decided to leave sched.cpu.min […]
Nested esxi lab for nsx – network issues
Preparing a lab of nested esxi host for nsx can be a pain Beside the issues with deploying the vcsa, ( browser compatability, ephemeral dvS port, create DNS first..) which are all things that will help in planning production deploys. There were a number of weird network issues that had me pulling my hair out. […]
Useful NSX commands
Controller status commands # show control-cluster status # show control-cluster connections # show control-cluster startup-nodes # show control-cluster roles # show control-cluster history # join control-cluster xxx.xxx.xxx.xxx # join control-cluster xxx.xxx.xxx.xxx force # show status # show network interface # show network default-gateway # show network dns-servers # show network ntp-servers # show network ntp-status […]