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Old 04-05-2015, 10:36   #416
horseman
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Re: 200Mbit coming soon? (According to a survey)

Quote:
Originally Posted by Ignitionnet View Post
The wave that's in progress does indeed - note that the upgrades are additional downstream channels rather than resegmentation on its own.

12 downstreams requires replacement on line cards on one CMTS platform and requires additional SPAs on others. The new tiers won't run so well on 8 downstreams, need 12 as a minimum.
Are we talking Cisco and/or Motorola? With further 3G60 infusion on Cisco and upgrades from 1Gbe to 10Gbe SPA on some Cisco?
I'm still seeking enlightenment as to how this maps to channel plans on node/cable segment in terms of load balancing when you potentially have 15 mac domains on each 3G60 card but Cisco min license (used to be) 16 x 16 blocks?

As a crude example you could perhaps have 16 x 8mhz =128Mhz somewhere between 200MHz and 330MHz below the TV SD+HD spectrum and balance 2 x 8channel domains with higher tier across 16 channels?
Clearly I'm confused as to how D3 load balancing works as well on 12 channels overlaid on legacy 8 channel? Are we looking at 2 mac domains and 20 d/s channels ( 8 + 12) on a cable segment to cover legacy SHubs + SH3?
Perhaps trying to correlate with Cisco licensing is an unnecessary complication but just seems 12 channels is an odd interim stage if 3G60 can accommodate 24?
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