Re: Think Broadband Ping Monitor Results (POST YOURS)
Of course now I'm only 10/1Mbps it has to get pretty bad before I see speed reductions if things work how I think they do. I'm just going to sit things out on this package now pretty much for sure as Infinity has been brought forward by 6 months now.
Who knows 7 months from now I might be berating BT and hankering on returning to VM. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
yep as far as I know there is no priority given to higher tier customers under congestion so a 100mbit customer could be seeing 11mbit speeds a near 90% drop whilst a 10mbit customer could still see full speed.
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Re: Think Broadband Ping Monitor Results (POST YOURS)
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What a terrible shame :)
I spotted I couldn't logmein to home today and was rather hoping that this outage like the last signalled a node split. No such luck it just signalled an outage - at least it wasn't a dipstick engineer swapping the tap to some other random one this time though which is a minor consolation. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
that outage may still have been reseg work, but you still on the original segment.
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Re: Think Broadband Ping Monitor Results (POST YOURS)
connection going to hell again here.
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Re: Think Broadband Ping Monitor Results (POST YOURS)
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i don't think that is correct....i get 90-100 Mbps 247 :erm: even when the local UBR is loaded @ 42% i can still hit these speeds |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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So the fact your UBR is relatively uncongested means what to my statement? |
Re: Think Broadband Ping Monitor Results (POST YOURS)
with 200mbit of available bandwidth, the uBR would need to be over 50% load before you would see any speed reduction, so at 42% your going to be hitting full speed 24/7
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Re: Think Broadband Ping Monitor Results (POST YOURS)
I guess it all depends at what level you are measuring. The 200Mbps is at the node level (or even sub node? - depends on definitions) and the modems served will be in the low (hopefully very low) hundreds. You could have a completely borked node yet the overall CMTS (which I think serve several thousand modems) could be at a tiny overall utilisation level.
That is a couple of torrent freaks nearby may wipe out your street but they will have no impact at all on the overall district. This is why cable is more susceptible to heavy usage than xDSL where the contention point is thousands of users on far fatter pipes. Unless of course (as is often the case) I've got it all wrong. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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eg. leics only had 1 ubr covering the entire city so that ubr would be serving several nodes at the very least. The situation described probably does exist in some areas and makes a mockery of what VM are doing since clearly things can be balanced better but are not. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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Each 10k can hold 8 cable line cards, one line card that comes to mind can have 72 downstreams and 60 upstreams, split that 12 ways you've 12 service groups of 6 downstreams and 5 upstreams. Basically fully load a Cisco 10k with that you've close to 24Gbps of downstream and, using the current schemes VM are, 8.7Gbps of upstream capacity. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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Im sure theres a reason why not, but I cant work it out myself :D |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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I must admit I struggle to see exactly why VM would put 2 Motorola BSRs into my hub with its 4 VXRs, one of which was only half full, and only use 1 for a site with 13 VXRs. If space were a problem they'd either wait until more space was available or do a displacement build, swapping VXRs for BSRs directly. That was well worth clicking the 'View Post' button for. ---------- Post added at 15:59 ---------- Previous post was at 15:57 ---------- Quote:
Very few areas running on a single DOCSIS 2 upstream, majority of issues are down to 100Mb users going nuts and bad congestion handling by the Cisco 10k. You can tell a congested Motorola from a congested 10k pretty easily. Once line card swaps are finished VM can do upstream bonding. |
Re: Think Broadband Ping Monitor Results (POST YOURS)
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Re: Think Broadband Ping Monitor Results (POST YOURS)
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A node however is a physical construct, what you're talking about would be called a service group. |
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