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adz161
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Northampton Area Network Reseg Now terrible Latency

Recently there has been a reseg on the network in Northampton , since this whilst it has supposedly resolved the high utilization fault. we are now experiencing high latency/jitter , and the BQM graph looks awful ! 

Any ideas? when you ring VM you just get the usual its within spec fob off. I am on M500 and only get the minimum guaranteed speed of 258 most of the day.

Also seeing alot of t3 timeouts.

LIVE BQM 

 

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adz161
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Message 2 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 443000000 0.7 38 256 qam 5
2 411000000 1.2 38 256 qam 1
3 419000000 1.2 38 256 qam 2
4 427000000 0.9 38 256 qam 3
5 435000000 0.9 38 256 qam 4
6 451000000 0.7 38 256 qam 6
7 459000000 0.7 38 256 qam 7
8 467000000 0.2 38 256 qam 8
9 475000000 0.2 38 256 qam 9
10 483000000 0 38 256 qam 10
11 491000000 -0.2 38 256 qam 11
12 499000000 -0.5 38 256 qam 12
13 507000000 -1 38 256 qam 13
14 515000000 -1 38 256 qam 14
15 523000000 -1.4 38 256 qam 15
16 531000000 -1.4 38 256 qam 16
17 539000000 -2 38 256 qam 17
18 547000000 -1.7 38 256 qam 18
19 555000000 -2 38 256 qam 19
20 563000000 -2.2 37 256 qam 20
21 571000000 -2.5 38 256 qam 21
22 579000000 -3 37 256 qam 22
23 587000000 -2.7 38 256 qam 23
24 595000000 -3 37 256 qam 24


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 38.9 5 0
2 Locked 38.6 6 0
3 Locked 38.6 4 0
4 Locked 38.6 4 0
5 Locked 38.9 4 0
6 Locked 38.6 5 0
7 Locked 38.9 5 0
8 Locked 38.9 7 0
9 Locked 38.9 5 0
10 Locked 38.6 4 0
11 Locked 38.6 5 0
12 Locked 38.6 7 0
13 Locked 38.6 7 0
14 Locked 38.6 7 0
15 Locked 38.6 9 0
16 Locked 38.9 6 0
17 Locked 38.6 8 0
18 Locked 38.6 13 0
19 Locked 38.6 5 0
20 Locked 37.6 6 0
21 Locked 38.6 5 0
22 Locked 37.6 7 0
23 Locked 38.6 7 0
24 Locked 37.6 7 0

 

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 32599983 4.525 5120 64 qam 3
2 25800031 4.525 5120 64 qam 4
3 39399979 4.525 5120 64 qam 2
4 46199932 4.525 5120 64 qam 1


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0

 

General Configuration
Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
fg87dsfd;kfoA,.iyewr


Primary Downstream Service Flow
SFID 5466
Max Traffic Rate 575000000
Max Traffic Burst 42600
Min Traffic Rate 0


Primary Upstream Service Flow
SFID 5465
Max Traffic Rate 38520000
Max Traffic Burst 42600
Min Traffic Rate 0
Max Concatenated Burst 16320
Scheduling Type BestEffort

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redbutcher
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Message 3 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

I'm in the same area and just posted the same 😀

adz161
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Message 4 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

ha yes and i just replied to your thread !
MikeRobbo
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Alessandro Volta
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Message 5 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

Have you checked the 'Check Service Status' at the top of the page ?

If nothing is showing try phoning 0800 561 0061, this will tell you of more local issues that may not be affecting the area. Be aware that it isn't a manned line.

You can try phoning it in or wait here for one of the VM Staff to pick up the thread, someone should be along within a couple of days

Don't bump your thread; it doesn't get answered any quicker.


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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adz161
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Message 6 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

Any response VM ? 

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adz161
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Message 7 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

Still no response VM ? 

Your network is a joke . Despite claims of having adequate capacity you clearly do not . 

The whole of Northampton is affected , sort it out 

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adz161
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Message 8 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

7 hours later still no reply .... 

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legacy1
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Alessandro Volta
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Message 9 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

it will be days because VM will reply to this likely a port in the network hit high Utilisation and buffing packets before dropping them by the looks of it the network buffer is so big trying to not drop any so of course your ping will be high the buffer should be smaller (not too small) yes their will be dropped packets in order to let clients slow down. Then VM need to QoS the link.

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ToffeeSurprise
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Message 10 of 37
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Re: Northampton Area Network Reseg Now terrible Latency

QoS isn't a solution to a lack of capacity, all it does is prioritise the important traffic.

More likely there's still a fundamental lack of capacity, though it is possible they've set the wrong buffer size on a port for the queues causing jitter and latency.

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