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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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Promiscuous Portgroup Myth
Topic of promiscuous portgroup on virtual switch came up lately from different directions therefore I decided to summarize some information and also debunk one particular myth. What is promiscuous...
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VCD-SP 5.6 Upgradability
Just a short post. vCloud Director 5.6.3 – the first release solely for service providers was released on Tuesday. There is however no upgrade path from vCloud Director 5.5.2 which was released a month...
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VCIX-NV Exam Experience
After passing my VCP-NV – the entry level certification for VMware NSX network virtualization technology as soon as it was available I scheduled its advanced exam called VMware Certified Implementation...
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Homelab: Downsizing NSX Controller
One of the problems of testing NSX in homelab environment is that it is really resource hungry. For example NSX Manager VM deploys with 12 GB RAM. While it is simple to edit its settings and lower...
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Load Balancing HA vCenter Single Sign-On with NSX
One of the deployment options for vCenter Single Sign-On 5.5 (SSO) is high availability mode. It usually consists of two load balanced SSO nodes deployed in single site configuration. It is quite...
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How to Generate SSL Certificates for vRealize Operations
vRealize Operations 6 (vRops) has different SSL certificate generation requirements than the older version. I have not found it publicly documented anywhere so here it is: Generate private key: openssl...
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Source NAT Rule for All Internal Networks in vCloud Director
In order to access external network resources from internal Org VDC networks Source NAT (SNAT) rule must be created on the Edge Gateway which translates internal IP address to a sub-allocated IP...
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vCloud Director Portal Access over IPv6
I got interesting question from a colleague if vCloud Director portal can be accessed over IPv6. I suspected the answer is yes so I had little bit of fun and did a quick test. With NSX load balancer in...
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Automate ESXi Host VTEP Default Gateway
As discussed in my older article VXLAN routed transport network requires to set default gateway of vxlan stack on each ESXi host. While NSX has concept of IP Pools which allows automatic VTEP...
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vCloud Director: Online Migration of Virtual Data Center – Part II
About two years ago I have written a blog post describing how service provider (with cloud based on vCloud Director) can replace hardware without tenants actually noticing this. The provider can stand...
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Deploy 500 Edge Gateways in 500 Seconds
I am working on a few vCloud and NSX API scripts that collect data about Edge Gateways and needed to test how they work at scale. With this little PowerShell script leveraging NSX API I created 500...
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How to Monitor Health of NSX Edge Gateways
NSX Edge Service Gateways are virtual machines deployed by NSX Manager that provide network services (routing, bridging, load balancing, VPNs, DNS relay, DHCP, …). This makes them quite a critical...
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My New Role at VMware
After almost 4 years working for professional services at VMware I am transferring to new Architect role in Global Cloud Practice – vCloud Air Network. I am taking up the challenge to work in a global...
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Renaming Edge Gateway
Recently one of my customers changed naming convention of vCloud Director Edge Gateways. He renamed them in vCloud Director however the names of virtual machines backing the Edge Gateways stayed the...
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Custom vCenter Server Event and Alarm
Related to my previous post about monitoring Edge Gateways my customer asked me if he could leverage vCenter Server alarms as they are integrated with their monitoring and alerting infrastructure. So...
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