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kev445 · 15-11-2013, 15:43

Isn’t it a bad thing to have modems with different downstream capabilities on the same segment?

My understanding is that the CMTS distributes packets in a round robin fashion on the available downstream channels… Which means if your segment has more than 4 downstream channels and has a combination of VMNG300’s and Superhubs, you could end up in a situation where 1 or more VMNG300's would cause congestion when downloading for the Superhubs when there is actually spare downstream capacity on the 4 remaining channels…

The VMNG300’s effectively stop the SuperHubs utilising all the available capacity.

15-11-2013, 15:43	#210
kev445 Inactive Join Date: Oct 2007 Posts: 78	Re: Virgin Media 150Mb Coming 2014 Isn’t it a bad thing to have modems with different downstream capabilities on the same segment? My understanding is that the CMTS distributes packets in a round robin fashion on the available downstream channels… Which means if your segment has more than 4 downstream channels and has a combination of VMNG300’s and Superhubs, you could end up in a situation where 1 or more VMNG300's would cause congestion when downloading for the Superhubs when there is actually spare downstream capacity on the 4 remaining channels… The VMNG300’s effectively stop the SuperHubs utilising all the available capacity.