Dear Customers,

We have been advised of the following planned maintenance work being carried out at the Bluesquare Milton Keynes data centre:

What

Lumison/Bluesquare will be carrying out routine maintenance on the UPS System that support the critical load on the B side of the Milton Keynes Data Centre

Each unit will be serviced individually and returned to the string before moving onto the next unit ensuring that your rack equipment will always have 1 backed up power supply throughout the exercise.

In keeping with the manufacturers recommendations, and the
Lumison/Bluesquare Planned and Preventative Maintenance regime we carry out this exercise at the prescribed times to ensure that all of our Data Centre systems continue to deliver the performance expected in a critical environment.

This work forms a major part of this regime.

The work is now scheduled to take place on 4th March at 21:00 and is scheduled to last for 4 hours.

Should you have any questions or queries, please don’t hesitate to contact us via the ticket system at https://support.c4l.co.uk

Kind Regards,

C4L Technical Team

Dear Customers,

We would like to inform you of upcoming scheduled  maintenance to our fibre line between Telehouse North – BIS Greenwich, during which your services may be a subject to a brief packet loss, while the redundant paths re-route the traffic and OSPF re-calculates. Please note, this is an “SERVICE AFFECTED” announcement.

You can find the full details of the maintenance listed below:

- Date: 3 March 2012 – 04 March 2012
- Window: 22:00pm (GMT 0) – 07:30pm (GMT 0)
- Devices: Fibre link between devices: Phoenix (Telehouse North) and gmt.sw2-4948 (BIS Greenwich)
- Type of maintenance: Diversion of fibre
- Affected services: layer 2 services and IP Transit.

Contact:
Should customers have any queries, please raise a support ticket on the support site, https://support.c4l.co.uk or give the technical team a call on 01202 299799 ext. 3.

Kind Regards
C4L Technical Team

Dear Customers,

We would like to inform you of upcoming scheduled  maintenance to our fibre line between Telehouse Metro and City Lifeline, during which your services may be a subject to a small packet loss, while the redundant paths re-route the traffic. Please note, this is an “AT RISK” only announcement.

You can find the full details of the maintenance listed below:

- Date: 17 February 2012
- Window: 22:00pm (GMT 0) – 23:30pm (GMT 0)
- Fibre link between devices: lo0-thmbeta.c4l.co.uk (Telehouse Metro) and   lo0-cll.sw2.c4l.co.uk (City Lifeline)
- Type of maintenance: fibre optic cable clean, testing and re-termination.
- Affected services: layer 2 services.
- Description: Cleaning of the fibre cable and re-termination.

You should expect your services to be interrupted with brief packet loss, which will be a subject to OSPF and layer 2 re-convergence around the ring . The maintenance windows is set to 1 ½ hours as there will be an ‘at risk’ period following the fibre clean whilst all tests are fully completed.

Contact:
Should customers have any queries, please raise a support ticket on the support site, https://support.c4l.co.uk or give the technical team a call on 01202 299799 ext. 3.

Kind Regards
C4L Technical Team