Archive for December, 2009

Outage: Newcastle to Leeds

Posted: Wednesday, December 30th, 2009 at 17:55 by Phil Davies

The  link between Newcastle and Leeds is currently down. A fault has been raised with our provider and they have confirmed they are dealing with an incident between York and Middlesbrough and updates will be made as and when they are available. Traffic usually on this route is using an alternative path, there may be a small increase in latency due to the change in routing.

  1. Phil Davies says:

    Our provider has confirmed that a fiber break has been identified in York and engineers are on route for further investigation.

  2. Phil Davies says:

    Service was restored at 4.15am and the provider has confirmed this fault has now been closed off.

Emergency maintenance: Manchester Core Router

Posted: Wednesday, December 23rd, 2009 at 16:44 by Ming-Yu Hsieh

24th Dec 2009 03:00 – 24th Dec 2009 04:00

During the maintenance window above, the man.core router will be rebooted to resolve some configuration issues. This should take less than 30 minutes to complete, during which all directly connected customers will be out of service. Any traffic that would normally be routed through this equipment will route via alternate paths.

Outage: London to Manchester

Posted: Thursday, December 17th, 2009 at 10:41 by Phil Davies

The  link between London and Manchester is currently down. A fault has been raised with our provider and updates will be made as and well they are available.

Traffic usually on this route is using an alternative path, there may be a small increase in latency due to the change in routing.

  1. Steve Lalonde says:

    Service was restored at 05:15, engineers closed the fault at 07:30

Outage: Stoke to Manchester

Posted: Wednesday, December 9th, 2009 at 17:28 by Martyn Haynes

We appear to have lost a link between Stoke and Manchester. We are logging this with our provider and updates will be made as and well they are available.

Traffic usually on this route is using an alternative path, there may be a small increase in latency due to the change in routing.

  1. Martyn Haynes says:

    Initial indications suggest that this is related to a fibre cut in the Warrington area – we will update as soon as it is confirmed to us.

  2. Richard Partridge says:

    Our suppliers have advised that engineering work is currently underway to repair the fibre damage and restore service. No ETR has been specified as of yet. Further information will be made available as we receive it.

  3. Marc Woolfenden says:

    Our suppliers have advised that re-splicing work has been completed, however upon retest a secondary break in the fibre has been identified in the Harecastle area. As the secondary break is inside a tunnel on the rail network our suppliers are currently liaising with Network Rail in order to avoid high speed rail services entering the tunnel in order to preform the necessary work, however we have been advised that work may not be able to continue until 23:00. Our suppliers are attempting to re-route traffic around the affected bearer, however no ETA is availiable.

    Further information will be made availiable as we receive it.

  4. Richard Partridge says:

    Our suppliers have advised that repair work has been partially completed, and our network link has been restored. This incident is still ongoing however as the repair work has had to be suspended as high speed rail services have resumed.

    This link should be considered at risk until the repair work is completed, and further information will be made available as soon as we receive it.

Traffic prioritisation measures

Posted: Tuesday, December 8th, 2009 at 15:37 by Steve Lalonde

On 2nd November 2009 we advised that, starting 4th November, Entanet was monitoring new traffic prioritisation measures for approximately three weeks. To remind yourself of the detail please see the NOC notice of 2nd November.

The feedback we have received strongly supports Entanet’s decision to continue to apply the measures as a means of improving the user experience of the majority of customers. As a result our prioritisation measures will continue to be applied. Where customers report access speed issues, we have encouraged Partners to share the experiences with us directly and with specific details so that we can investigate accordingly.

In addition to the Questions and Answers listed in our communication on 2nd November, please make note of the following:

Q: How is traffic prioritised?
A: In order to deliver a better user experience of interactive services, less priority across the DSL network will be given to non-interactive bulk services at times of congestion. However, there are no specific or hard set trigger points at which prioritisation is applied and released on the protocols. Compared to other communications providers that set specific and permanent maximum limits on speed of access to non-interactive bulk services irrespective of bandwidth availability, Entanet’s measures are applied dynamically and traffic types are given the highest possible speed according to their priority versus bandwidth availability in real time.

Q: What traffic types are considered non-interactive bulk services?
A: Peer-to-peer and newsgroups protocols are given lower priority as non-interactive bulk services.

Q: When is traffic prioritised?
A: It is important to note that the prioritisation measures are applied dynamically. This means that, whilst the prioritisation rules run 24/7, varying levels of speed restriction are applied to non-interactive bulk services as the demand for interactive services bandwidth increases. Consequently there may be times when no traffic prioritisation is taking place and all services enjoy a higher speed.

Q: Is the Anti-Loss Tool (ALT) being used?
A: No, the ALT, including the high bandwidth user marking system, is not in operation because we are applying the traffic prioritisation measures.

Please note these measures continue to be monitored and are subject to change.

Wolverhampton WBC

Posted: Tuesday, December 1st, 2009 at 12:18 by Steve Lalonde

There is currently a fault with WBC  connections via Wolverhampton.

  1. Phil Davies says:

    BT have confirmed this fault is still ongoing. We are trying to find out more information and will update as and when we get this information.

  2. Marc Woolfenden says:

    We have been advised by BT that the severe packet loss issues experienced by users connected to the Wolverhampton WBC node has been identified as faulty BT maintained equipment at the handover point. As a result emergency work to replace the affected system card will be performed between 04/12/2009 00:01 and 04/12/2009 06:00 during this period users connected to this node may experience up to 60 minutes downtime.

    Customers connected via other nodes on the 21CN platform will be unaffected.