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Cisco, Router, Gt96k FE, RDP connections for 98 VM's over 2Mbps dedicated leased line

Hi there,

I need some advice with regards to poor network performance over WAN. Following scenario:

As part of an outsourcing strategy, around 100 contractors in Hyderabad/India are required to access their assigned VM (Windows XP) hosted at the HQ in Brisbane/Australia. The WAN is a 2Mbps dedicated leased line using Cisco routers (Gt96k FE). The contractors have complained about slow network and application performance.

Our network department looked into this issue and compiled the below attached output taken from the Cisco routers and advised that the WAN connection is fully operational.

Our server team monitored system performance of 3 most affected VM's over the past month with the following results:
- CPU Usage (Average/Rate): 2.23%
- Disk Usage (Average/Rate): 22.82KBps
- Memory Usage (Average/Absolute): 4.75%
- Network Usage (Average/Rate): 1.61KBps

To me, it looks like the WAN connection of 2MBps is not in proportion to the required bandwidth. There are currently 98 VM's utilising a bandwidth of approx. 50KBps per RDP session. Doing some math: 98 VM's * 50KBps = 4,900KBps.

Any ideas?

Thanks and regards,
Rene
Snippet removed by Netminder 27 June 2008

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Thanks for your reply. I'll pass this on to our network team. At this stage it's hard to tell the concurrent connections as I don't have enough info yet (will follow up on this). A rough estimate would be at least 70 concurrent connections. They accessing their VM's only over RDP (port 3389) and to my knowledge any other traffic may be restricted by firewalls (still need more info from the network guys). All the contractors are developers working on all sorts of different projects.

Regards,
Rene
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