Archive for the ‘Emergency Work’ Category

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*Completed* Emergency Maintenance Telecity Williams – UPS Removal February 9th 23:00 – 23:30

Wednesday, February 8th, 2012

Update: 23:15pm

The switch has been reloaded and now is back up  and functioning properly.

Emergency Maintenance Telecity Williams – UPS Removal Thursday 9th February 23:00 –  23:30

The following notification is to inform you of an emergency maintenance on the C4L Network. Please note, this is a SERVICE AFFECTING announcement.

Start: 2012-02-09 23:00 BST
End: 2012-02-09 23:30 BST

Affected Devices:
Telecity Williams – Splinter

Affected Services:

All L2&L3 customer services directly connected and traversing through.

Service Impact:

Customers terminating into device, Splinter, will see downtime during this UPS removal. Total downtime no more than 15 minutes

Outage Reason:

Our UPS has indicated that its batteries need immediate replacement. Because of the risk of batteries bursting we have to remove this. Replacements have been ordered and will be swapped into the device. Another maintenance will be planned to re-insert this UPS into our topology.

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

Posted in Emergency Work, Network, Planned Work | Comments Off

Emergency Fibre Works Globalswitch 2 4-5th November 2011

Friday, November 4th, 2011

Dear Customers,

For clarity, the following maintenance affects only customers that are co-located with C4L on the 9th floor of Globalswitch 2 in the Docklands. Transit and interconnect customers without colocation will not be affected as our core 10G infrastructure will not be impacted.

Start: Ongoing
End: 5th November 23:59

Affected Devices:
Dr.Jeckyll
Mr.Hyde

Outage Reason:
We have been informed of some urgent fibre works taking place in Globalswitch 2 at the moment which may impact one of our fibres coming from the 9th floor to the 11th (our core network rack at this site). We are taking precations by moving customers off of this fibre now.
Affected customers may see a brief outage if your circuit needs re-routing, and a further outage once we have been given the all clear and circuits returned to normal resilience.

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

Posted in Emergency Work, Network | Comments Off

*** Resolved *** Telehouse Router Reboot

Thursday, May 26th, 2011

Update 01:30: After investigating all possibilities including power, slot compatabilty and chassis capability, we re-inserted the card once again and powered the line cards up one by one. This brought the new 48 port copper gigabit line card online without issues this time. On investigation, the power available in the chassis remains at acceptable levels.

During the below maintenance, our Cisco 6506 chassis disabled power to all line cards. We re-enabled power and all has returned to normal. This would have affected all customers directly connected to this device and any interconnect customers going through Telehouse North.

We are continuing to invesitigate the cause of this.

Posted in Emergency Work, Network, Outage | Comments Off

*** Completed *** Switch Reload Telecity Williams ‘Splinter’ April 19th 23:00

Monday, April 18th, 2011

The following notification is to inform you of a scheduled maintenance on the C4L Network:

Start: 2011-04-19 23:00 BST
End: 2011-04-19 23:05 BST

Affected Devices:
Telecity Williams: Splinter

Affected Services:
All services for customers plugged into device ‘Splinter’. Due to the nature and scope of this work, all Manchester customers should consider themselves to be AT RISK during this work.

Service Impact:
Network device ‘Splinter’ will have a change made to the configuration, which requires a reboot of the device. All customers here will see an outage on their ports, lasting no more than 5 minutes, whilst this work is undertaken.

Outage Reason:
After Friday night’s work, unexpectedly this device is not performing optimally, and needs a configuration change made to bring this back to previous performance levels. The cause of this had been tracked to the change in network topology in Manchester and once peak traffic returned to the ring, this device started to software switch a lot of traffic.

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

Posted in Emergency Work, Network, Planned Work | Comments Off

*** Completed *** Emergency Works Global Switch 1 April 15th 22:00 – 23:00 BST

Thursday, April 14th, 2011

The below work has been completed successfully.

The following notification is to inform you of a scheduled maintenance on the C4L Network:

Start: 2011-04-15 22:00 BST
End: 2011-04-15 23:00 BST

Affected Devices:
Global Switch 1: Jess & Krypton

Affected Services:
Layer 2 services transitioning through GlobalSwitch 1

Service Impact:
Customers may notice a brief outage while circuits are re-routed around the ring whilst this work is undertaken.

Outage Reason:
We had an outage on one of our links between two devices at Global Switch 1 at 15:00 today. This caused an amount of distruption around the C4L network which affected transit feeds and interconnect customers. As a precaution, and to avoid this happening again, we are swapping out the optics and the patch leads at this location.

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

Posted in Emergency Work, Network | Comments Off

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