At 1:34pm we received alerts regarding some destinations being unreachable. Further investigation showed that our fibre link to Level3 was down unexpectedly. This caused a BGP routing event. Our configuration started the BGP reconvergance process as soon as the router saw the fibre link drop and outbound traffic was re-routed… Continue reading
We experienced a short fibre outage on one of our fibre circuits between Bolton and Manchester overnight. This started at 12:05am and concluded at 12:52am. No maintenance was scheduled for this period so we are awaiting a RFO (reason for outage) from VirginMedia for the circuit. Due to our… Continue reading
We have received a maintenance notification from IXmanchester(LINX) stating that they will be performing switch maintenance on their network. 18/Mar/2015 midnight – 5am (UK local time) This maintenance will affect our IXmanchester peering connectivity during the window. We do not anticipate any disruption from the above maintenance as the exchange… Continue reading
Following some recent reports of very low packet loss on some routes via Cogent, we performed extensive testing of our core infrastructure and located a potential issue with one leg of our metropolitan core ring. (Our core ring traverses four buildings, utilising a different supplier for each leg of the… Continue reading
This evening there have been a few periods of instability with one of our IP Transit providers (Level3). These occurred around 5pm, 7pm and 10:30pm. Level3 have confirmed this is due to a faulty line card which is currently being replaced. These brief periods of instability occur while our routers… Continue reading
At 8:37pm, switch 23 went offline due to a power failure. Engineers attended site and diagnosed the cause of the power failure and re-established power at 10:28pm and will continue to monitor the power for the next 24 hours. Any customers connected to switch 23 will have seen a network… Continue reading
Cogent Maintenance is about to begin. As a precaution, we have disabled all connectivity via Cogent during their maintenance window. Details: Start time: 24.05.14 04:00 CEST End time: 24.05.14 07:00 CEST Location: Manchester-Slough (U.K) Work order number: NC583 Expected Outage/Downtime: 1 hour The purpose of this work is reload… Continue reading
Earlier this evening we experienced some issues with an interlink between Telecity Reynolds House and Telecity Williams House in Manchester. Starting 6:06pm, we started receiving spanning-tree topology errors via the link (provided by Geo) causing the link to flap. This continued randomly until approximately 8:15pm and has been stable since…. Continue reading
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
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