BT Broadband + Mac = slooow?!
- Thread starter Piers Gibbon
- Start date
Piers Gibbon
Well-Known Member
so it begins...
BT agreed to escalate this complaint to the Clever Clogs Team
My first contact from them: a text to say "Case Closed"
So these results are just fine - on an up to 8 megs contract!
19/11/2008 18:18:16 680 Kbps 263 Kbps
19/11/2008 17:07:04 968 Kbps 250 Kbps
19/11/2008 17:05:09 792 Kbps 291 Kbps
19/11/2008 14:57:41 208 Kbps 202 Kbps
19/11/2008 14:19:13 440 Kbps 91 Kbps
19/11/2008 08:37:55 632 Kbps 222 Kbps
18/11/2008 22:57:11 312 Kbps 188 Kbps
18/11/2008 22:41:33 520 Kbps 121 Kbps
18/11/2008 22:16:17 112 Kbps 123 Kbps
18/11/2008 22:08:13 432 Kbps 168 Kbps
BT agreed to escalate this complaint to the Clever Clogs Team
My first contact from them: a text to say "Case Closed"
So these results are just fine - on an up to 8 megs contract!
19/11/2008 18:18:16 680 Kbps 263 Kbps
19/11/2008 17:07:04 968 Kbps 250 Kbps
19/11/2008 17:05:09 792 Kbps 291 Kbps
19/11/2008 14:57:41 208 Kbps 202 Kbps
19/11/2008 14:19:13 440 Kbps 91 Kbps
19/11/2008 08:37:55 632 Kbps 222 Kbps
18/11/2008 22:57:11 312 Kbps 188 Kbps
18/11/2008 22:41:33 520 Kbps 121 Kbps
18/11/2008 22:16:17 112 Kbps 123 Kbps
18/11/2008 22:08:13 432 Kbps 168 Kbps
hmm if they are using traffic shaping they are probably using what is termed dual bucket dual token shaping which means to you..30% of x then 20% to that etc. Using policing on the bandwidth and percent allocation of the available as it moves up and down.
Great if you get the full 8meg ( right next to the exchange with perfect cabling and impedence to your router) otherwise your screwed.
Sorry to interject
Great if you get the full 8meg ( right next to the exchange with perfect cabling and impedence to your router) otherwise your screwed.
Sorry to interject
Piers Gibbon
Well-Known Member
please interject away! I am v much looking forward to quoting "Dual Bucket Token Shaping" at them!
I am very close to the exchange... when I first got the BT Broadband I downloaded tonnes of things...perhaps I am being punished. Right now I download nothing..because I can't
I am very close to the exchange... when I first got the BT Broadband I downloaded tonnes of things...perhaps I am being punished. Right now I download nothing..because I can't
okay as simply put as I can without your eyes rolling back in your head. when you configure on a router and what is termed layer 3 switches (switches capable of running routing protocols) usually the ISP uses a firstly a radius server to assign you your IP (from their pool) then on the configuration of the router at their end they slap on what is a policy map via a range of commands taking the form of if then else statements
but on routers its usually (if cisco or foundry the form of
match xxxx
followed by
set xxxx ....now a dual bucket dual token policy map is a policy map applied to the configuration where the bandwidth is always finite and if you think about it there is no such thing as unlimited bandwidth every box has a bandwidth limitation of packets which can flow thru it.. so they put policy maps to "shape" and "limit" the traffic in order to ensure that they meet demand.
So it kinda like if the box reaches 50 percent of resources then limit on percentage the traffic to x y and z but if it conforms then allow thru..so
Loading a few web pages great only about 80 k but start doing peer to peer and then....down shrinks your speed...however...most ISP are taking up the dual bucket dual token approach stating this is the bandwidth give 30 % here 20 % here 10 % here etc. if or when the OVERALL limit of the box is approaching 70% ( im taking an arbitrary figure here then push down and conform...termed policing the bandwidth according to the ratio defined in the policy map...
In fact I reckon you could work out the ratio allocated to you by a bit or reverse maths...there is nothing you can actually do about it and the helpdesk simply are not technical enough to even understand what is going on and the senior networking staff are simply not contacted due to implementation and roleout task to undertake.
This does not help you but hopefully enlightens you on the nonsense of " unlimited" there is always a limit traffic shaping and policing exists but if a company also tells you it "limits" during peak hours then futher maps are being applied to your circuit pushing your "pipe" down even further...
but on routers its usually (if cisco or foundry the form of
match xxxx
followed by
set xxxx ....now a dual bucket dual token policy map is a policy map applied to the configuration where the bandwidth is always finite and if you think about it there is no such thing as unlimited bandwidth every box has a bandwidth limitation of packets which can flow thru it.. so they put policy maps to "shape" and "limit" the traffic in order to ensure that they meet demand.
So it kinda like if the box reaches 50 percent of resources then limit on percentage the traffic to x y and z but if it conforms then allow thru..so
Loading a few web pages great only about 80 k but start doing peer to peer and then....down shrinks your speed...however...most ISP are taking up the dual bucket dual token approach stating this is the bandwidth give 30 % here 20 % here 10 % here etc. if or when the OVERALL limit of the box is approaching 70% ( im taking an arbitrary figure here then push down and conform...termed policing the bandwidth according to the ratio defined in the policy map...
In fact I reckon you could work out the ratio allocated to you by a bit or reverse maths...there is nothing you can actually do about it and the helpdesk simply are not technical enough to even understand what is going on and the senior networking staff are simply not contacted due to implementation and roleout task to undertake.
This does not help you but hopefully enlightens you on the nonsense of " unlimited" there is always a limit traffic shaping and policing exists but if a company also tells you it "limits" during peak hours then futher maps are being applied to your circuit pushing your "pipe" down even further...
