100M Birmingham overloaded every night from 17:00 to 23:00?

toytown · 10-07-2014, 18:38

Every night my internet goes from 100mbit down to 1.6Mbit

The culprit from traceroute's seems to be either Lichfield or Birmingham as noted in the WinMTR. Will Virgin be aware of this, or do i need to phone up to get it fixed. It's impossible to watch streams etc with it like this.

Code:

|                       Host              -   %  | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
|                                  router -    0 |   11 |   11 |    0 |    0 |    0 |    0 |
|cpc2-lich11-2-0-gw.3-2.cable.virginm.net -    0 |   11 |   11 |    6 |   10 |   30 |    7 |
|brhm-core-2b-ae3-2707.network.virginmedia.net -    0 |   11 |   11 |   71 |   74 |   92 |   72 |

broadbandking · 10-07-2014, 20:43

Quote:

Originally Posted by toytown

Every night my internet goes from 100mbit down to 1.6Mbit

The culprit from traceroute's seems to be either Lichfield or Birmingham as noted in the WinMTR. Will Virgin be aware of this, or do i need to phone up to get it fixed. It's impossible to watch streams etc with it like this.

Code:

|                       Host              -   %  | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
|                                  router -    0 |   11 |   11 |    0 |    0 |    0 |    0 |
|cpc2-lich11-2-0-gw.3-2.cable.virginm.net -    0 |   11 |   11 |    6 |   10 |   30 |    7 |
|brhm-core-2b-ae3-2707.network.virginmedia.net -    0 |   11 |   11 |   71 |   74 |   92 |   72 |

You will need to ring them up and they can tell you if there is a open ticket for your area.

toytown · 10-07-2014, 20:56

I did, the helpful woman told me she was sending a signal to my modem, then when that had no effect, she told me she was sending an even stronger signal, lol.

I don't understand how their internal network is screwed and i have to ring them up to notify them. If it was just the local connection (me to the UBR) i could understand a little bit more.

broadbandking · 11-07-2014, 00:39

Quote:

Originally Posted by toytown

I did, the helpful woman told me she was sending a signal to my modem, then when that had no effect, she told me she was sending an even stronger signal, lol.

I don't understand how their internal network is screwed and i have to ring them up to notify them. If it was just the local connection (me to the UBR) i could understand a little bit more.

The UBR is likely to be oversubbed, they are most likely aware, there should be a ticket raised for a reseg to be done if the area is over its thersold.

qasdfdsaq · 11-07-2014, 01:08

This problem is quite clearly nothing to do with UBR oversubscription and will not be fixed by any number of resegs.

Multiple people have shown evidence something is buggered in or near the Birmingham core network.

craigj2k12 · 11-07-2014, 01:27

Yeah im seeing it from stafford, lots of sites struggling to load during peak times

toytown · 11-07-2014, 03:32

It slowly got better after midnight, first with the packet loss coming down, then the speeds getting higher and finally the ping dropping to normal levels.

However it was unusable from 17:00-02:20. This has probably been the worst, but the core routing in Birmingham has been atrocious for over a week.

Ignitionnet · 11-07-2014, 15:10

The small 'bumps' people reported look like traffic being rerouted around a problem.

The massive 'wall' obviously congestion but going by how sudden it was that looks like a reroute into a problem.

Hmm wonder if part of a port-channel or even an entire router / couple of them had issues.

qasdfdsaq · 11-07-2014, 16:43

Quote:

Originally Posted by Ignitionnet

The small 'bumps' people reported look like traffic being rerouted around a problem.

The massive 'wall' obviously congestion but going by how sudden it was that looks like a reroute into a problem.

Hmm wonder if part of a port-channel or even an entire router / couple of them had issues.

Agreed.

My guess would be, seeing as the small bump and massive wall happened at the same time, one particular node had a problem and some areas routed one way around it and some areas routed another, with too many going the second way and that path being flooded as a result.

However some people describe problems for a while now, not just that obvious bump yesterday which looks like a one off. Perhaps the latter was them taking something down in order facilitate upgrade works for the former. I wouldn't be at all surprising if something had to be upgraded to add capacity, that it's redundant failover would have less capacity and be even more overloaded when taking on the primary's traffic.

broadbandking · 11-07-2014, 20:00

Quote:

Originally Posted by qasdfdsaq

This problem is quite clearly nothing to do with UBR oversubscription and will not be fixed by any number of resegs.

Multiple people have shown evidence something is buggered in or near the Birmingham core network.

Ok that been said the OP still needs to call up and see if there is a ticket open

Coffeeguy · 11-07-2014, 20:53

Quote:

Originally Posted by toytown

I did, the helpful woman told me she was sending a signal to my modem, then when that had no effect, she told me she was sending an even stronger signal, lol.

I don't understand how their internal network is screwed and i have to ring them up to notify them. If it was just the local connection (me to the UBR) i could understand a little bit more.

Just goes to show how pathetic their offshore 'telephone answering service is'

toytown · 12-07-2014, 17:47

Since 4:40pm today

. Another day of no internet.

Code:

|                       Host              -   %  | Sent | Recv | Best | Avrg | Wrst | Last |

|------------------------------------------------|------|------|------|------|------|------|

|                                  router -    0 |    9 |    9 |    0 |    0 |    0 |    0 |
|cpc2-lich11-2-0-gw.3-2.cable.virginm.net -    0 |    9 |    9 |    5 |    9 |   19 |    7 |
|brhm-core-2a-ae3-2707.network.virginmedia.net -    0 |    9 |    9 |    8 |   11 |   21 |    8 |
|brhm-core-2b-ae1-0.network.virginmedia.net -    0 |    8 |    8 | 1006 | 1032 | 1069 | 1019 |

Ignitionnet · 12-07-2014, 18:08

Something wrong between brhm-core-2a and brhm-core-2b. Along wtih also the other link between your uBR and brhm-core-2b. They may share a common crunch point somewhere.

The router itself is fine.

--- brhm-core-2b-ae1-0.network.virginmedia.net ping statistics ---
20 packets transmitted, 20 received, 0% packet loss, time 19029ms
rtt min/avg/max/mdev = 18.989/22.924/75.920/12.208 ms

toytown · 12-07-2014, 19:32

It went back to normal, so all's good. Can I assume that virgin will be aware of this and have it down to be fixed. I really don't think i'm in the mood to phone them, to have them send me a "stronger signal" :p

toytown · 20-07-2014, 19:36

It's still pretty much the same every other night, here is an example right now

Code:

|                       Host              -   %  | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
|                                  router -    0 |   20 |   20 |    0 |    0 |    0 |    0 |
|cpc2-lich11-2-0-gw.3-2.cable.virginm.net -    0 |   20 |   20 |    8 |   12 |   28 |    8 |
|brhm-core-2a-ae3-2708.network.virginmedia.net 0 |   20 |   20 |    7 |   11 |   27 |    7 |
|brhm-core-2b-ae1-0.network.virginmedia.net -  0 |   20 |   20 |    9 |   15 |   34 |   13 |
|brhm-bb-1b-ae8-0.network.virginmedia.net -    0 |   20 |   20 |    7 |   64 |  530 |   96 |

Is there a number i can phone to get this fixed? Phoning 150 is completely useless.