Quote:
Originally Posted by Ignitionnet
I can say no quite easily, I just know stuff and increasing oversubscription rates can be mitigated in a number of ways, both controlling supply of bandwidth and demand. You also forget that downstream upgrades don't go anywhere near the level of increased usage that upstream upgrades bring, there's only so much to download.
4 -> 5 downstreams is a far more complicated job than 5 -> 8. It needed line cards to be replaced in the case of BSRs and a shift to I-CMTS architecture in a number of cases on the Cisco.
I would recommend looking at how the line cards are broken down, multiples of ports per line card, etc, it would make more sense than assuming that the line card replacement required to go from 4 to 5 or in the case of many Cisco 10ks even just 3 to 4 downstreams is replicated in going to 8.
I'm not aware of it being PR talk, I've not seen VM make big news of this. Beyond us nerds no-one really gives a monkey's about how many downstreams VM are using in each service group.
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Theres your mistake.
People on 100mbit can find enough to download to keep it busy pretty much 24/7. Tons of media content out there. Given it only takes 1-2 in any given area to cause problems its quite easy to see the serious misjudgement thats occured.
Next year when the xbox 720 is released microsoft whispers are the games will be download only no physical media, games I expect will be 10-40gig in size on average, demos will likely be at least half that size as well. But in terms of media currently available there is raw bluray been released multiple times a day at 40+ gig a pop very capable of keeping 100mbit lines busy.
Someone with your experience not only should think usage will increase, they should expect it.
Incidently VM have now officially confirmed downstream is "very highly" utilised in my area and its finally been escalated.
I remain curious of course on what 50mbit is getting of course and its good the fluff is been added in regards to complying with regulation but at the same time I feel my concerns are very valid.