VDC Trainer

VDC Trainer

Connecting to the VMware Virtual Data Center (VDC)

Operating System Requirement

Microsoft Windows XP SP3,  Windows Vista SP1 or SP2, Windows 7 or Windows 7 SP1 or Windows 8.x or Windows 10.x

If you are using Windows XP SP3 or Vista, it is recommended that the following Microsoft RDP update be applied:

http://support.microsoft.com/kb/969084

If you are using Windows 7 SP1, it is recommended that the following Microsoft RDP update be applied:

http://support.microsoft.com/kb/2592687

Though not officially supported, many students have successfully used the following RDP Clients for Mac and Linux.

The following are RDP configuration files that temporarily changes the default Remote Desktop Connection settings optimized for best user experience with minimum bandwidth.   The configuration file It must be selected for every connection, as it does not make any permanent changes, and will work with all supported versions of Windows, as well as Mac clients that use the RDC for Mac client from Microsoft:

vdcaccess2_1.rdp – This file is for general use to improve the student experience in accessing the VMware VDC/vClass RDP Terminal Servers. 

Low_BW_High_Latency_vdcaccess-2_1.rdp This file is for those cases where the connection between your computer or classroom and the VMware VDC in Wenatchee, WA, USA have low bandwidth and/or high-latency, as is often the case in many Geos throughout the world or people using wireless connections, which, while unsupported, are often used by necessity.

How do you know when to use the Low_BW_High_Latency_vdcaccess-2_1.rdp configuration file instead of the vdcaccess-2_1.rdp file?  When you experience lag between your computer and the VMware VDC RDP Terminal Server desktop.

How do they work?    They temporarily change the session parameters to reduce the bandwidth requirements on data being sent from the VDC to your desktop which, by the nature of the sessions, is where the vast majority of bandwidth is consumed.   It does this by telling the RDP client and server to reduce unnecessary screen graphics, increase client-side bitmap caching, reduce the color palette and control the negotiated screen size.

What is the difference between the two files?    The vdcaccess-2_1.rdp file uses a 15-bit color palette and the Low_BW_High_Latency_vdcaccess-2_1.rdp file uses an 8-bit color palette, and, as a result, reduces the bandwidth going to the client by up to 50%, at a cost of a reduced number of represented colors.

By using one of these files, it not only reduces your computer’s inbound bandwidth requirements, it also helps provide the best possible classroom lab exercise experience.

Note: The VDC uses Windows Remote Desktop Connection and Microsoft Terminal Services that uses the RDP protocol.

Network Requirements

NOTE: It is recommended to disable NIC Power Management, as there have been reported cases of RDP connections being dropped with certain client computer configurations!

Outbound Port Access

Students access remote server kits located at VMware’s Virtual Data Center (VDC) to deliver a VMware Education Services class. In order to access the VDC, the classroom network must allow outbound access to the following port:

TCP port 3389 for Windows Desktop Assistant access using the RDP protocol

Remote Server Addresses

VMware Education Services request that all connections are opened to all possible remote servers. That way, students can connect to an alternate VMware server if the assigned server should become unavailable during class. The destination subnets that belong exclusively to VMware systems are as follows:

207.189.189.0/24

207.189.190.0/24

 Test Connectivity to VDC using Windows Remote Desktop Connection

  1. Open connections to the destination network listed above.
  2. Open port 3389/TCP (Windows Desktop Assistant/RDP client access) to all destination addresses listed above.
  3. Start the Windows Desktop Assistant by selecting Start | Run | type “mstsc.exe”.
  4. For the host, enter “vdc-us04-a.vmeduc.com” or “vdc-us24-a.vmeduc.com”

When prompted, login as username = student, password = student, Domain = VMEDUC. You will receive an error that the username or password is incorrect, but will confirm that you can connect to the test server using the RDP protocol, as the server you connected to could not authenticate the account.  This error is a normal indication.