BITS bandwidth throttling to a collection (Full Version)

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bmoline -> BITS bandwidth throttling to a collection (6/30/2008 6:46:13 PM)

Is there anyway to take advantage of the BITS bandwidth throttling to collection of wireless laptops? 

Thanks.



jnelson993 -> RE: BITS bandwidth throttling to a collection (6/30/2008 8:22:11 PM)

Haven't had any luck.  The problem is the throttling is per client, not per subnet.  You get a bunch of machines on the same subnet and you still wipe out the WAN.  You're much better off going with SMS Nomad.  It continually checks the available bandwidth (not the theorhetical bandwidth from the NIC to the switch) and politely takes only 80% OF WHAT'S LEFT (or as little as you want it to take).  It's been AMAZING the difference on our tightest subnets.  Completely eliminated bandwidth-related calls in an entire line of business.

http://www.1e.com/softwareproducts/nomadenterprise/index.aspx



jbezdan -> RE: BITS bandwidth throttling to a collection (6/30/2008 9:06:37 PM)

A former coworker has been doing some testing on this with some pretty good success, although the 1e product takes all of the work out of it and is nearly fool proof.  I'll see if I can post a summary of how he did it later this evening.

Also, keep in mind that a wireless access point is more like a hub instead of a switch, so saturating it is a lot easier.



jbezdan -> RE: BITS bandwidth throttling to a collection (6/30/2008 11:54:20 PM)

Again, I highly recommend the 1e Nomad solution, but if you like reinventing the wheel, here is what my friend has been doing (BTW, they maybe purchasing the 1e product soon):

Under HKLM\Software\Policies\Microsoft\Windows\BITS, the EnableBITSMaxBandwidth (DWORD) value of 1 turns on the bandwidth limitation.  The value MaxTransferRateOnSchedule (DWORD) is the maximum rate in kbps.  By default the limits are only between 8:00 AM and 6:00 PM unless you tweak them too.  What he is doing is writing a wrapper script as a separate program that sets the first value to 1 then sets the bandwidth limit value.  This program is run first before the program that needs to be limited is run.  The last I heard was that he was going to do something to reset the first value to 0 when the application was finished installing.

Here is a link to a TechNet article on the BITS settings: http://technet.microsoft.com/en-us/library/bb457145(TechNet.10).aspx 

With this method, depending on the bandwidth rate you choose, you can still hammer your network or wireless AP.  The 1e Nomad product is always checking the available bandwidth and limiting the transfer according to the work rate you set on the command line.  Well worth the investment.



bmoline -> RE: BITS bandwidth throttling to a collection (7/1/2008 9:58:14 AM)

Thank you for your very fast reply.  I think this forum is fantastic!  Thank you for the ideas and suggestions.



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