Archive for August, 2017

Emergency Maintenance: Preston

Posted: Thursday, August 31st, 2017 at 09:39 by Richard Partridge

Friday 1st September 00:01 – 06:00

During the above window we will be replacing preston.core.enta.net with a higher specification and capacity router.

All services currently terminated in this location will be migrated on to the new hardware. This includes all customer transit, EWCS, wholesale hand-off and pseudowires terminating at this location.

All other traffic that would normally route through this location will take alternative paths.

  1. Jake Turner says:

    This work is now complete

Incident: Preston

Posted: Thursday, August 24th, 2017 at 13:54 by Richard Partridge

We have just experienced a brief loss of power to our equipment located in our Preston PoP. Power is currently restored however engineers are investigating with our colocation provider.

Further updates will be provided when available.

  1. Richard Partridge says:

    Our investigation has determined that the problem related to an unexpected reload of the Preston core router and we are continuing to investigate. The core router has shown no signs of any further problems.

  2. David Derrick says:

    The Preston router has again reported a reboot caused by power failure. Services terminating at that POP will have experienced disruption; other services will have had their traffic rerouted automatically.

    Investigations into the power outage on 24th are still ongoing, this incident will be added to the case as a matter of urgency.

  3. Richard Partridge says:

    The core router has shown no further signs of problems. However, we already had plans to replace this core router with a higher specification and capacity device. In light of these recent problems, we’ve accelerated these plans and will be replacing the core as outlined in this emergency maintenance notification:

    http://noc.enta.net/2017/08/emergency-maintenance-preston/

VoIP Disruption

Posted: Wednesday, August 23rd, 2017 at 10:14 by Adam Heath

We are aware of an issue currently affecting some VoIP services.  We are investigating the issue and will provide further information once it is available.

  1. Adam Heath says:

    Our investigations have led to an issue being identified with a specific upstream carrier. Our engineers are in correspondence with the relevant carrier for more information, which we will make available once obtained.

  2. Adam Heath says:

    Further information attained suggests the root cause may be a power issue with an upstream carrier. It has been advised that there are engineers working to restore service.

  3. Adam Heath says:

    The affected upstream carrier has confirmed that a small number of services have been restored, but there is still a significant amount of non-functional incoming services. Work is continuing towards restoration.

  4. Adam Heath says:

    We have started to see inbound services recover, following a way to reroute numbers in bulk being identified further upstream from ourselves. Internal testing here against numbers previously reported to us, also confirms this to be the case.

  5. Adam Heath says:

    An incident report for this issue is now available here.

At-Risk: Kingston to Slough fibre link maintenance

Posted: Wednesday, August 16th, 2017 at 07:38 by Iain Beveridge

21-Aug-2017 02:00 GMT to 21-Aug-2017 06:00 GMT

During the above window one of our fibre suppliers will be carrying out maintenance on one of our links between Kingston and Slough. Whilst the actual downtime is expected to be less, the full 4 hrs may be required to account for any unforeseen issues. This work is not expected to be service affecting, however, you may see unusual paths and increase in latency while traffic is automatically rerouted via alternate routes.