Dear.
I have a cisco CMTS ubr7246. by chance someone has already implemented a bandwidth management interfaces on cable, especially downtream? for example, to 256QAM modulção 32mbps downstream is reached the rule would be applied. Could post an example?
Thank you, Flavio.
Hmm thought I posted some info on this thread but now I cant see it. Apologies if it turns up as a double post.
So you are wanting to prevent users from using an "unfair" amount of bandwidth?
Have you looked at the Cisco feature called Subscriber Traffic Management?
http://www.cisco.com/en/US/docs/ios/cable/configuration/guide/cmts_sbsbr...
Or alternatively you can count user traffic with a tool such as Netflow. And then parse this data regularly to look for users how are over the limit. Change their DHCP / cm config file from high speed service to low speed.
He had seen the document indicated but from what I saw him only current cable modems DOCSIS 1.0 or 1.1 that exceed the contracted speed my network and most cable modems are DOCSIS 2.0, configuration files but use 1.0 speed. WHAT was the least understood.
WHAT would really like was to manage the traffic in the peak schedules when you arrive at the maximum capacity of the channel downstream. this only occurs some 2-3 times a week and always between 19:00 to 23:00 h that still does not justify a hardware upgrade. does anyone have any examples?
Thank you, Flavio.
The cable network will prioritise bandwidth in times of congestion.
You set the priorities by using the DSServiceFlow->TrafficPriority value in the config file, or by using the priority field in the CMTS cable service class.
Some older IOS implement the priorities strictly - by filling all prio 7 requests, before then moving onto prio 6, then prio 5 all the way down to prio 0.
Newer IOS use a weighted fair queue system instead to give higher prio's more share, but also still ensuring lower prio's are not totally starved out.
You could try splitting your customers into different tiers based on the plan they have bought.
For example business vs residential, and/or gold vs silver vs bronze type plans.
Give the more expensive "gold" plans a higher prio than silver than bronze.
Give the more expensive "business plans a higher prio than residential ones.
So then when your DS maxes, the people who paid more will get better speeds.
Same techniques also work for the upstream.