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vCloud Director: Isolated Org VDC Network and DHCP
Today I learned one little trick. You know when you create an isolated Org VDC network in vCloud Director there is always one armed Edge deployed in it which does nothing but provides a DHCP service?...
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Troubleshooting VXLAN vmknic in vSphere 5.5
As of vSphere 5.5 VXLAN has its own vmkernel networking stack therefore ping connectivity testing between two different vmknics on the transport VLAN must be done from ESXi console with the following...
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PVLAN-like Behavior with ACL on VXLAN Network
Private VLANs (PVLANs) are useful in multitenant environments where there is a need to provide access to single server for all customers while not allowing them to see each other and NAT or dedicated...
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Shuttle PC – vSphere 5.5 White Box Gotchas
I love barebone Shuttle PCs for home lab purposes. They have very compact design, can fit 3 hard disks (great for VSAN), low power consumption, are quiet and can fit up to 32 GB of RAM. I have two of...
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Improve vSphere Web Client Performance
I was always bothered by slow performance of my lab installation of vSphere Web Client (version 5.5). Although my lab is small I have large number of plugins. I use the Windows installable version...
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How To Download vCloud VMRC Plugin
I had a question if there is a way to download vCloud Director VMware Remote Console plug-in without the need to actually log in into vCloud Director. For example in order to prepare desktop images for...
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VXLAN as an External vCloud Director Network
I was asked by a customer how to use a VXLAN network as an external network in vCloud Director. I thought there was already written blog article about it bud did not find any. So writing the answer...
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Datastore Cluster Issue in vCloud Director 5.5.1
Just found out there is a known issue with removing datastores in and out of datastore clusters. In vCloud Director 5.1 this was working fine. vCloud Director refers to storage via storage policies...
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Memory Overhead in vCloud Director
This little known fact came up already twice recently so I will write just a short post about it. In the past when you created allocation pool Organization Virtual Datacenter (Org VDC) and allocated to...
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vCloud Director – vCenter Single Sign-On Integration Troubleshooting
The access to vCloud Director provider context (system administrator accounts) can be federated with vCenter Single Sign-On. This means that when vCloud system administrator wants to log into the...
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Migration from Nexus 1000V to NSX in vCloud Director
A few service providers were asking me questions about migration possibilities from Nexus 1000V to NSX if using vCloud Director. I will first try to explain the process in high level and then offer a...
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Availability Zone Design in vCloud Director
Introduction Service providers with multiple datacenter often want to offer to their customers the choice of having multiple virtual datacenters from different availability zones. Failure of one...
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vCloud Connector in Multisite Environment with Single VC
I have received an interesting question. Customer has single vCenter Server environment with large number of sites. Can they use vCloud Connector Content Sync to keep templates synced among the sites?...
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Load Balancing vCloud Director Cells with NSX Edge Gateway
About two years ago I have written article how to use vShield Edge to load balance vCloud Director cells. I am revisiting the subject; however this time with NSX Edge load balancer. One of the main...
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vCloud Usage Meter with Signed SSL Certificates
vCloud Usage Meter is a small virtual appliance used by service providers to measure their VMware product consumption for VSPP (VMware Service Provider Program) type licensing. I needed to replace the...
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VCP-NV Exam Experience
During VMworld 2014 VMware released new certification track – Network Virtualization. There is already quite a big number of bootstrapped VCDX-NVs which is the highest certification level and it is...
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Multitenant Service Network in vCloud Director
Service providers often have to provide additional services to their cloud tenants. An example is providing licensing services (KMS) for Windows VMs deployed from provider managed catalog or RHEL...
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How To Change VXLAN VTEP MTU Size and Teaming Policy
One of my customers has configured VXLAN in vCloud Director environment and then created multiple Provider and Org VDCs and deployed virtual networks. Then we found out that MTU and teaming policy...
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Troubleshooting Multicast with Linux
I was looking for lightweight tool which would help me with troubleshooting multicast on VXLAN transport network (underlay). While both vCNS and NSX have built in tools (pings of various sizes and...
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VXLAN on Routed Transport Network
One of the major benefits of VXLAN technology is that it allows creating virtual Layer 2 segments over Layer 3 routed networks. VTEPs (VXLAN Tunnel End Points) encapsulate and decapsulate ethernet...
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