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Planned Network Maintenance

Notification TypePlanned Maintenance
StatusClosed
Start Time2012-01-26T22:00:00+00:00
End Time2012-01-27T06:00:00+00:00
ServiceCore Network
LocationVarious

Description

In the above window we will perform a number of actions on the core network, as detailed below.

Some of this work was previously planned however not carried out and so moved to this window.

Summary

  • Insertion of rt0.thn.uk to network
  • Upgrade of cs0.the.uk
  • Meridian Gate PoP Migration

Insertion of rt0.thn.uk to network

A new Juniper MX device will be placed in to Telehouse North in order to route traffic locally in this location (its currently carried over MPLS to THE).

Clients with services terminating in Telehouse North will experience a short outage as their connections are migrated to the new device. Any BGP customers will have their sessions shut down cleanly before being migrated.

No outage is expected for other customers.

Should any issues arise we will roll back to a known-good configuration.

Upgrade of cs0.the.uk

The device, cs0.the.uk, will be upgraded.

Customers directly connected to this device, and remote customers with BGP sessions terminating on rt0.the.uk, will experience an outage of up to 20 minutes. No outage is expected for other customers however some re-routing may occur.

Should any issues arise we will roll back to a known-good configuration.

Meridian Gate PoP Migration

Due to issues with cabling access at our current Meridian Gate location we will be migrating our PoP to a new rack.

Customers with services in Meridian Gate will be contacted directly in order to arrange patching of new cabling.

No outage is expected to customers not terminating services in Meridian Gate, however some re-routing may be observed.


Issues at THN

During our work we have had a device (cs0.thn.uk) fail. We are currently working on restoring service to this device.

It is likely we will have to postpone the MER migration.

Ending Maintenance

We have inserted rt0.thn.uk to the network however the cs0.the.uk upgrade and MER migration will have to be postponed due to equipment failure.

Whilst copying port configs to the new device cs0.thn.uk stopped forwarding IPv4 traffic. We could not get this to forward again despite trying new firmware. The hardware was swapped out with our spare and forwarding resumed indicating the device is faulty.

Unfortunately due to this issue we have now exhausted our available time and so will have to plan the remaining tasks for another window.

Technical Summary

Planned tasks will be carried out on the network.

Resolution