Tag Archives: network

Jumbo Frame with ESXi: What I Learned at Home Lab

While building my home lab, I found a bit trouble setting up the jumbo frame of MTU 9000 which is supposedly faster than normal frame of MTU 1500. To set it up, I changed the MTU on both ESXi and the Synology DS1513+. The steps involved are pretty simple and straight-forward.

Posted in Cloud Computing | Also tagged , , , | 3 Responses

How to Use the Missing Virtual Network Editor in VMware Player

For most people who use the VMware Player, DHCP is good enough for the NAT network. That means the IP addresses of your virtual machines may change after each powering on.

What if you want to have static IP addresses? It’s pretty easy as long as it’s in the same subnet. For example, if the VMnet8 has IP address of, your virtual machines should be configured in the same network say 192.168.47.x, where X can be any value from 3 to 254 (2 reserved for gateway, 255 broadcast by default).

Posted in Virtualization | Also tagged | 17 Responses

What VMware Didn’t Tell You About Nicira Deal

On this past Monday VMware announced to buy Nicira for $1.26 billion. Congratulations to many of my former VMware colleagues who joined Nicira and will return back to VMware soon.

Overall this deal aligns well with VMware’s newly found vision on software defined data center. You must have read many of similar explanations and comments from various sources including this one from VMware CTO Steve Herrod, and this one by Nicira cofounder and CTO Martin Casado.

Posted in Cloud Computing, News & Events, Virtualization | Also tagged , , | 7 Responses

Moving Virtual Machine Back From Distributed Virtual Switch

After blogging about moving virtual machines from a standard virtual switch to a distributed virtual switch, I saw a new question in VI Java API forum on how to roll it back. Technically, I don’t see any reason why one should switch back because using distributed virtual switch gives you a lot of benefits. But the decision is not mine but yours. Whatever you want to do, we help do it easily.

The method involved is

Posted in vSphere API | Also tagged , , | 4 Responses

Moving Virtual Machine to Distributed Virtual Switch

The distributed virtual switch introduced in vSphere 4 has many benefits over the traditional switch. For one thing, you no longer have possible glitches with live migrating virtual machines from one host to another using traditional switches, and all your port settings go with your virtual machines.

If you have virtual machines using traditional switches, you can easily move them to new distributed virtual switches. The rest of this article explains how to achieve this.

You can use the

Posted in vSphere API | Also tagged , , | 3 Responses

    My company has created products like vSearch ("Super vCenter"), vijavaNG APIs, EAM APIs, ICE tool. We also help clients with virtualization and cloud computing on customized development, training. Should you, or someone you know, need these products and services, please feel free to contact me: steve __AT__ doublecloud.org.

    Me: Steve Jin, VMware vExpert who authored the VMware VI and vSphere SDK by Prentice Hall, and created the de factor open source vSphere Java API while working at VMware engineering. Companies like Cisco, EMC, NetApp, HP, Dell, VMware, are among the users of the API and other tools I developed for their products, internal IT orchestration, and test automation.