Over the past week there have been times in the evenings where we have seen congestion on some of our TalkTalk ADSL and VDSL circuits. This has shown up in our CQM graphs as latency spikes and/or packet loss.
We would like to reassure customers that this is *not* congestion in TalkTalk's network; it is actually happening inside our own network. We are aware of the cause and are taking actions to stop it.
We mentioned in the January newsletter that we are planning various upgrades to our London network to increase overall capacity. This work is in progress but for a couple of reasons has been delayed and is taking slightly longer than initially planned.
Whilst the London upgrades have been happening we have been trying to mitigate the congestion problem by re-routing traffic in various ways. This has helped but not been a 100% solution, and has affected service for customers. For this we are sorry; we do aim never to be the "bottleneck" and in this case we've not managed to meet that standard.
Looking forward, we have works planned for the datacentre next week and the following week and we'll update this post with progress along the way.
We're happy to discuss this further, do pop in to our IRC channel or email or phone etc.
This work was planned for last year but issues beyond our control (problems with new fibres) had delayed it. The plans now are for testing of fibres to hopefully be completed during this week (7th-11th March), and if all goes well we can start using the new fibre next weekend. Once this is in place we can move the impacted circuits on to the new fibres during the following week to remove the bottleneck in our core network. There is a lot to do, but the one issue right now is one of the TalkTalk back-haul links and that can be the first thing to be moved over.
Once again we apologise for the time this is taking.
We plan to launch a new Home::1 ADSL Terabyte package as soon as these issues are resolved and the capacity is in place.
We have posted details of planned work for Sunday 13th: https://aastatus.net/2222
Further work at the datacentre has been planned, please see: https://aastatus.net/2227
Network upgrades are now providing additional capacity for TT lines. Thank you all for your patience.