In reply to a post by j0hn83:

Just Google "BT Wholesale hot SVLAN" and you will be able to find days worth of reading that will show just how odd your comment above is.

Tried a search to see if I could learn what youse are on about...

No results found for "BT Wholesale hot SVLAN".
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Did you search with quotes round the phrase? If so try again without.

I got this many results searching that phrase

About 46,300 results (0.36 seconds)

Thanks Dan

In reply to a post by kitcat:

Pheasant

Any issue like this should be affecting every customer on that BTW switch. card, so there should be lots of people complaining. ..

It's a nightmare. Unfortunately I'm not and for reasons won't be listed as a technical contact at either of the other sites I've tested (Zen and Gamma), so I haven't been able to chase up those lines of enquiry.

I suspect that the issue is affecting a lot of customers - I hit another one the second place I asked after I suspected it was a widespread issue. Fact is, it seems that for 95% of customer applications, they simply don't notice if you throw away 5-10% of their data!! One openreach engineer pointed out that if it was a residential area they'd have all the gamers beating them up over it...

https://i.imgur.com/94ZFNFj.png

Does anyone else think it's odd that the loss improves so drastically between 3AM and 7AM? I know the standard answer is 'that's traffic related', but is traffic really that much lower at 3AM than 2AM?

Are the BT/Zen in contract? could they be moved to Gamma?

Thanks
Dan

In reply to a post by BlueComp:

https://i.imgur.com/94ZFNFj.png

Does anyone else think it's odd that the loss improves so drastically between 3AM and 7AM? I know the standard answer is 'that's traffic related', but is traffic really that much lower at 3AM than 2AM?

Problem may only manifest beyond a certain level of traffic / utilisation. As said problem looks like it is the BTW backhaul domain, rather than Openreach / DSL side of the connections.

If other customers aren’t screaming about the losses, then it could be a long wait before BTW put the effort in to trace the root cause of the fault. It could be intermittent and quite difficult to otherwise diagnose.

Simple solution (technically) would be to request a change of backhaul provider. Whether you can sort that at a commercial/contractual level is another matter.

Anyway the upshot was that everyone at BT got bored of talking to me about it and after another 3-4 months the problem suddenly disappeared overnight and never came back. I assume that a piece of kit somewhere in the wholesale network got replaced / rebooted / updated and stopped throwing data away.

After 1 year 8 months???

Edited by Nervous (Tue 12-Dec-23 20:22:39)