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
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
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
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
We’re seeing packet loss on the LINX Extreme network this morning. We’ve also got alerts coming in for our London location too, this is routed entirely separately to our Bolton/Manchester locations, so it looks like it is affecting the entire LINX LAN. We’ve shunted most traffic over to the LINX… Continue reading
There is currently a storm over the Bolton area (with very nice fork lightning!) which has caused a brief power outage this evening around 7pm UK local time. Our UPS units continued to operate during the outage with no loss of power to the datacentres, and our generators started to… Continue reading
Yesterday, at around 11:50am, we had some reports of unusual activity on our ring network. We traced this down to elevated levels of CPU usage on our switches. Further investigation pointed to a high level of IGMP traffic being received. We further traced this to our LINX Extreme peering port… Continue reading
Rather than publish frequent blog entries relating to the successful routine testing of our generator infrastructure, we will now only mention unexpected test results, as and when they occur. This will hopefully result in a clearer browsable blog, of pertinent information.
Today’s routine generator test passed as expected. The generator was started manually, then run off-load 10:57 – 11:18 All measured values were within their normal ranges.
Today’s routine generator test passed as expected. The generator was started manually, then run off-load 10:24 – 10:45 All measured values were within their normal ranges.