The myriad of blog posts concerning vSphere Standard vSwitch redundancy typically will show a topology like this:Īs mentioned before, you’ll have no trouble finding posts that explain the basics of how each vSwitch NIC Teaming policy works. I SSH’d into each of the hosts and discovered that they could not ping each other over the management network, and they definitely should have been able to. It seemed like vCenter was able to get to the hosts, but the client kept refreshing like it was losing connectivity several times a second. This state is reported by a vSphere HA master agent that is in a partition other than the one containing the host.ĭuncan Epping has a great article on Host Isolation, specifically with regards to this error message as well. VSphere has detected that this host is in a different network partition that the master to which vcenter server is connected, or the Vsphere HA Agent on the host is alive and has management network connectivity but the management network has been partitioned. It was pretty bad - the vSphere client was laggy, vCenter’s resource utilization was pretty high, and I was getting strange messages like: A customer was having problems getting vSphere HA to converge properly, and was also having intermittent connectivity between vCenter and the ESXi hosts. Since this post was inspired by an experience of mine, I will briefly explain the problem symptoms that surfaced as a result of incorrect settings that will be explored later in the post. So…this article will be catered towards a very specific problem. It offers minimal complexity, while also providing the best load-balancing capabilities for network devices utilizing a vSwitch (Virtual Machine OR vmkernel).
Enter Configuration Mode: configure terminal.Display running configuration: show running-config.Exit privileged mode: disable (prompt will change from # to >).
#Esxi show mac address table password
Enter privileged mode: enable, enter password (prompt with change from > to #).Privileged Mode for NSX Manager and ESG/DLR Control VM Press or twice at the end of a partially completed command to get an option list.Do not use a live production environment for experimentation, use HOL-SDC-1425 – VMware NSX Advanced instead.All of these commands have been verified in NSX-v version 6.1.1.Use Putty to SSH to NSX Manager, NSX Controllers, ESGs, DLR Controller VMs and ESXi hosts.Make sure SSH is enabled on each vSphere and NSX component.Find the NSX-v component IP addresses via the vSphere Web Client and NSX Manager Plugin.Diagram of your environment – get an A3 piece of paper and draw it (physical and virtual).You have administrator access to NSX-v and vSphere.You have an advanced understanding of NSX-v and vSphere.VTEP: VXLAN Tunnel End Point encapsulated in VMkernel.