This is a notification related to the postponed maintenace: http://noc.c4l.co.uk/2012/04/maintenance-work-%E2%80%93-fibre-work-between-4d-data-centre-and-telehouse-north-%E2%80%93-25th-26th-may-2012/.

We would like to inform you of upcoming scheduled  maintenance to our fibre line between 4D Data Centre – Telehouse North, during which your services may be a subject to a brief packet loss, while the redundant paths re-route the traffic and OSPF protocol re-calculates the costs. Please note, this is an “Service affected” announcement. Please also note that this is a Stage 2 of the fibre maintenance : http://noc.c4l.co.uk/2012/03/maintenance-work-%E2%80%93-fibre-work-between-4d-data-centre-and-telehouse-north-%E2%80%93-18th-april-2012/

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

Start date and time: 26 May 2012 23:01 (UK time)
End date and time: 27 May 2012 06:00 (UK time)

Devices: Fibre link between devices: lo0-phoenix.c4l.co.uk (Telehouse North) and lo0-exor.c4l.co.uk (4D Data Centre)

Description of Work:
Due to essential splicing work to increase capacity, our provider will be moving our fibre to a new circuit. If any unexpected problems occur the circuit will be restored using the existing cable, fibre and patching.

Justification:
Essential network maintenance to increase capacity.

Regression Details:
This is a full cut, so if there are any issues then the circuits will be restored, as quickly as possible.

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

C4L need to take action urgently on our device Donatello which requires a change to the system mtu size in order to facilitate larger packets across the link between IFL2 and Telecity Williams. The configuration will be followed by a reload to bring the new frame size into affect.

Start – 20th May 2012 22:00

Outage Start Time – 15-20 minutes window in-between scheduled maintenance times

Finish – 21th May 2012 00:00

Description of Work:

C4L will reconfigure the device Donatello to support the maximum MTU and then reload it . Customers directly connected to this device will experience an outage of up to 5 minutes whilst the device reloads. Customers not directly connected will experience packet loss whilst spanning-tree and layer 3 routing re-converges.

Justification:

Maintenance in order to resolve issues affecting customers sending packets with large frame sizes .

Please accept our apologies for any inconvenience whilst this maintenance takes place.

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

We have been advised of the following planned maintenance work being carried out at the TelecityGroup Memaco House:

Description:

TelecityGroup will be carrying out a deep clean of customer suites and data floor areas at Memaco House from the 11th – 22th June 2012.

Please be advised that our specialist cleaning contractors will need to enter your dedicated area to carry out the deep clean. Any spare equipment or items on the floor will need to be cleared or moved to enable the cleaning works to be completed. Please make arrangements to clear any items on the floor within your area prior to commencement of the deep clean. If any items are found on the floor when our cleaning contractors enter your area, TelecityGroup’s engineers will move the items to an alternate location and place the items back once the cleaning is complete.

The cleaning contractors will ensure that suites doors are closed and as an additional security measure, TelecityGroup has arranging for dedicated security personnel to be in attendance whilst the cleaning contractors are working in your area to maintain our high security levels.

We do not anticipate any impact to your service whilst these works are ongoing. There may be short periods when some floor tiles in your area are raised during the cleaning works, however this will have minimal impact to the cooling in your area and the tiles can be promptly reinstated back into position if you need to access your dedicated area.

Contact:

If you have any major works planned during the deep clean window, 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. and we will reschedule the planned deep clean date of your area if it coincides with your scheduled works.

This work has been completed and Kusanagi is again on resilient power supplies.

Dear Customers,

At 16:45 today, our monitoring system alerted us to the fact that one of the power supply units in Kusanagi is failing.  We are taking immediate action to resolve this by replacing the PSU.  Engineers are already en-route to the DC now with a replacement unit.

Description of Work:
Power supply replacement in Kusanagi.  Whilst this should be a simple replacement of a faulty power supply on a device with resilient power, customers should consider themselves at risk should anything go wrong.  Engineers will remain at the rack where the switch is for a period of time after the work is completed to ensure stability and to be instantly available should anything go wrong.

Justification:

Emergency maintenance in order to bring up the redundancy in the Kusanagi switch.

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,

On the 17^th of May, Goswell Data Centre will be upgrading software on their network, therefore some C4L internal services will be affected momentarily.

Start – 17^th May 2012 00:00am

Outage Start Time – 30 minutes window in-between scheduled maintenance times

Finish – 17^th May 2012 04:00am

Affected Services – C4L websites:

1. http://noc.c4l.co.uk
2. https://support.c4l.co.uk

No C4L client’s services will be affected at that time and the outage will be a subject to only 30 minutes downtime during the maintenance window.

Normal out-of-hours procedure will be operational and our on-call engineer available should any of the clients requires assistance.

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.

We are currently experiencing link issues between our two devices between Reynolds House and Telecity Williams Data Centres.

Our Network Team is investigating the root of the cause with our link provider and will update you as soon as possible.

Update

We identified a loop on our network which caused a port on our provider’s side to error disable. The loop has been eliminated and normal port activity is restored.

The maintenance is now finished and and all tasks fully executed.

Should any customers experience any connectivity issues, please contact C4L Support Desk.

Thank you for your patience.

Dear C4L Customers,

You are receiving this email as notification of the following maintenance work that will be carried in Bluesquare – please note this is “Service Affecting” maintenance:

Start Date and Time: 19:00 05/05/2012

End Date and Time: 00:00 06/05/2012

The maintenance window is set for up to one hour but in the event of failure, a further 4 hours has been allocated to ensure normal service can be resumed.

Where:

Bluesquare, Maidenhead.

Description:

Network Switch Upgrade.

C4L as part of a phased approach to improving our service at Bluesquare will be replacing one of the switches servicing your connectivity.

C4L will be replacing the switch “Non” located BSQ3 floor 1, with a 10 Gb capable device. A 10 Gb fibre will then be disconnected from “Platini” on the ground floor of  Bluesquare 3 and reconnected to the new device. This will provide the starting point for a new 10Gb ring within the Bluesquare Datacentre. All customers directly connected to “Non” will be migrated to the new 10Gb capable device.

Additionally a 10Gb link between BSQ3 ground and BSQ3 floor 1 will be introduced.

During the insertion of the new switch and 10Gb links, customers not directed connected to “Non” will see traffic drop as layer 2 and layer 3 re-converges. There will also be some packet loss experienced when Vlans are migrated to the new 10Gb infrastructure.

During future planned maintenance windows, further 10Gb capable devices will be rolled out across the Bluesquare network to replace the existing legacy devices enabling C4L to complete the 10Gb ring.

Justification:

Certain customers within Bluesquare Maidenhead have been experiencing latency issues due to bottlenecks on the C4L network. As traffic flows have increased the latency issues and packet loss during peak times have reached unacceptable levels and need to be addressed as a priority. We wish restore the confidence with our customers in the C4L network and would ask that you bear with us whilst we implement this upgraded infrastructure.

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.

Dear Customers,

We would like to inform you of upcoming scheduled  maintenance to our fibre line between Bournemouth – Telecity HEX 8&9 DCs. Please note, this is an “At Risk Only” announcement.

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

Start date and time: 09-05-2012 20:0:00
End date and time: 09-05-2012 23:45:00

Description of Work:
Fibre splicing.

Justification:
Essential network maintenance to increase capacity.

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

We would like to inform you of upcoming scheduled  maintenance to our fibre line between 4D Data Centre – Telehouse North, during which your services may be a subject to a brief packet loss, while the redundant paths re-route the traffic and OSPF protocol re-calculates the costs. Please note, this is an “Service affected” announcement. Please also note that this is a Stage 2 of the fibre maintenance : http://noc.c4l.co.uk/2012/03/maintenance-work-%E2%80%93-fibre-work-between-4d-data-centre-and-telehouse-north-%E2%80%93-18th-april-2012/

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

Start date and time: 25 May 2012 23:01 (UK time)
End date and time: 26 May 2012 06:00 (UK time)

Devices: Fibre link between devices: lo0-phoenix.c4l.co.uk (Telehouse North) and lo0-exor.c4l.co.uk (4D Data Centre)

Description of Work:
Due to essential splicing work to increase capacity, our provider will be moving our fibre to a new circuit. If any unexpected problems occur the circuit will be restored using the existing cable, fibre and patching.

Justification:
Essential network maintenance to increase capacity.

Regression Details:
This is a full cut, so if there are any issues then the circuits will be restored, as quickly as possible.

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