Network – Page 6 – Netnorth Limited

Reinstatement of Fibre Circuit

By Gavin Jackson | August 9, 2017 - 5:39 pm |August 9, 2017 Advisory, Maintenance, Network

After a satisfactory 3 Week Soak Test, we brought the Virgin Media fibre circuit back into service tonight @ 17:33.

Planned Reinstatement of Fibre Circuit 09-08-2017

By Gavin Jackson | August 8, 2017 - 3:27 pm |August 8, 2017 Advisory, Maintenance, Network

3 Week Soak Test, commenced 17-07-2017 During this test phase we have monitored a sustained stable connection,with all relevant protocols present, over the ‘sandboxed’ fibre circuit from Virgin Media. We intend to bring the fibre circuit back into service on Wednesday 09-08-2017 @ 17:30. We do not anticipate this to… Continue reading →

Full Network Outage (MAN+BOL Sites) – 13/Jul/2017

By Dan A | July 13, 2017 - 9:14 pm |July 13, 2017 Faults, Network

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At 6:32pm this evening, we were alerted to a full outage of our network in both Bolton and Manchester. After remote diagnostics failed, an engineer attended one of the sites to perform detailed analysis. Early analysis showed a large amount of traffic operating on our core ring network which looked… Continue reading →

Switch Failure (BOL2) – 27/May/2017

By Dan A | May 27, 2017 - 7:38 am |May 27, 2017 Faults, Network

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We have identified a switch stack member failure at 8:15am this morning in our BOL2 location. This is part of our 10G ring and, as such, has caused a break of the resilience in this circuit. Any customer directly connected to this particular switch stack member will see an outage. … Continue reading →

3rd Party Maintenance (12/Feb/2017)

By Dan A | February 3, 2017 - 1:17 pm |February 3, 2017 Advisory, Maintenance, Network

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We have received a maintenance notification from Cogent Communications regarding one of IP Transit connections to the global internet. This maintenance is due on 12th February 2017 between midnight and 7am, with an expected outage time of 45-60 minutes. No outage to Netnorth customers is expected as we have multiple… Continue reading →

New IP Transit Connectivity Provider (30/Jan/2017)

By Dan A | January 30, 2017 - 12:14 pm |January 30, 2017 Features, Information, Network

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Today we have enabled a new IP Transit connectivity provider. We now have additional connectivity from GTT supplied into one of our Manchester locations. This was enabled for testing during the weekend, and is now fully operational. We will balance our traffic over this over the next few days.

Emergency Router Maintenance (28/Jan/2017)

By Dan A | January 28, 2017 - 4:04 pm |January 28, 2017 Advisory, Maintenance, Network

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Following on from the router crash experienced yesterday, we have performed an emergency upgrade of the Cisco IOS-XE software on all of our internet-facing routers. This update should resolve the issue that was triggered yesterday. No outage to customers should have been experienced today, but there may have been brief… Continue reading →

Cisco Router Crash – 27/Jan/2017

By Dan A | January 27, 2017 - 6:57 pm |January 27, 2017 Advisory, Faults, Maintenance, Network

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At 3:52pm today, one of our Cisco ASR routers experienced a crash within its routing engine. This caused the router to instantly stop routing and any destinations via the router experienced an outage. Unfortunately, this did not just sever connectivity cleanly… it started causing “flapping” (where routes are introduced and… Continue reading →

3rd Party Maintenance (23/Feb/2017)

By Dan A | January 27, 2017 - 10:24 am |January 27, 2017 Maintenance, Network

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We have received a maintenance notification from Virgin Media regarding one of our metro fibre circuits between Bolton and Manchester. This maintenance is due on 23rd February 2017 between midnight and 7am, with an expected outage time of 20 minutes. No outage to Netnorth customers is expected as we have… Continue reading →

Level3 Transit Failure

By Dan A | December 15, 2016 - 12:12 am |December 15, 2016 3rd Party Faults, Network

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At 11:55pm tonight, our connection to Level3 appeared to disconnect. The symptoms are identical to the previous occasions where the Level3 router rebooted so we assume this to be the case again tonight. The connection is slowly coming back online, which further supports this suspicion. As Level3 appear to be… Continue reading →

Category Archives: Network

Reinstatement of Fibre Circuit

Planned Reinstatement of Fibre Circuit 09-08-2017

Full Network Outage (MAN+BOL Sites) – 13/Jul/2017

Switch Failure (BOL2) – 27/May/2017

3rd Party Maintenance (12/Feb/2017)

New IP Transit Connectivity Provider (30/Jan/2017)

Emergency Router Maintenance (28/Jan/2017)

Cisco Router Crash – 27/Jan/2017

3rd Party Maintenance (23/Feb/2017)

Level3 Transit Failure

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