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Category Archives: Faults

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Level3 IP Transit Outage

By Dan A | May 8, 2014 - 12:14 am |May 8, 2014 3rd Party Faults, Faults, Network
3 Comments

Further to our recent ticket, our IP Transit connection to Level3 Communications is offline again. At 1:05am this morning, our physical link to Level3 Communications is reported as down. As this is the second event recently, we have escalated this with the provider.   Due to the unclean shutdown, a… Continue reading →

Interlink outage – 1204-0236

By Dan A | April 30, 2014 - 7:40 am |April 30, 2014 3rd Party Faults, Faults, Network
1 Comment

We experienced an outage of one of our interlinks between Bolton and Manchester provided by Virgin Media overnight. This fibre-optic link failed to pass traffic between 12:04am and 2:36am. Due to our resilient ring network topology, no outage occurred to customers in Bolton as traffic diverted via an alternate fibre… Continue reading →

IP Transit Provider Flap

By Dan A | April 29, 2014 - 11:09 am |April 29, 2014 3rd Party Faults, Faults, Network
1 Comment

At 10:53am UK local time, we saw our physical link to Level3 (AS3356) drop for 5 minutes. This caused our routers to immediately terminate the BGP routing session with Level3 and start to reconverge via our alternative paths leading to 2-3 minutes of instability whilst routes updated. The link to… Continue reading →

Firewall Outage 25/Feb/2014

By Dan A | February 25, 2014 - 4:15 pm |February 25, 2014 Faults, Network
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Earlier today, we had a failure of one of our firewalls pairs. This occurred at 2:43pm UK local time. Our firewalls operate in pairs in a failover capacity.  Unfortunately, today this failover took much longer than expected. The failover took place within a few seconds as designed, however this triggered… Continue reading →

Level3 Transit Provider Issue

By Dan A | December 22, 2013 - 12:00 am |December 22, 2013 3rd Party Faults, Faults, Network
1 Comment

We have received monitoring alerts showing a core problem at one of our IP Transit providers (Level3). While trying to confirm this alert, we can’t reach Level3’s London POP at all so feel that the issue at their end is a lot wider than a local issue. As a result,… Continue reading →

Fibre outage

By Dan A | August 16, 2013 - 11:34 am |August 16, 2013 3rd Party Faults, Faults, Network
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We experienced a fibre outage within the BT network this morning at 8:33am. There is a fibre break in one of our core ring circuits between Bolton and Manchester.   Our network automatically failed over to its redundant path, and continues to operate normally.   Once the fibre break has… Continue reading →

Commercial Power Failure – Bolton

By Dan A | February 6, 2013 - 10:20 am |February 6, 2013 3rd Party Faults, Faults, Power
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At approximately 7:10am this morning, we experience a commerical power failure of the L2 phase of power entering out Bolton 1 facility. This caused our Generator to take over the entire load of the building. Cooling was maintained via ‘free cooling’ (external filtered air travelling through the building via powerful… Continue reading →

Backup Server Outage – DT-310

By Dan A | December 3, 2012 - 12:59 pm |December 3, 2012 Faults, Maintenance
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We were notified of an outage on one of our backup servers (DT-310) this morning at approximately 9:00am UK local time. The server sufferred a hardware RAID controller failure with its HP SmartArray controller. For the sake of data integrity, the filesystem is performing a full FSCK (filesystem check) and… Continue reading →

BT Internet Connectivity Issue

By Dan A | October 5, 2012 - 10:16 am |October 5, 2012 3rd Party Faults, Network
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This morning at 8:10am, we started seeing increased latency and packet loss between our network and BT internet.  This settled down at 10:34am. Some diagnostics showed the problem to be around the London area, possibly at the interconnect of Global Crossing and BT. BT have raised this as a fault… Continue reading →

www10 update

By netnorth | September 13, 2012 - 5:08 pm |September 13, 2012 Faults
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The server, www10, is restored on temporary hardware.

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