News
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Feb 5 |
[Core Network] Service Alert 5th February 2019
Posted by David Croft on 05 February 2019 12:37 PM |
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This is an incident notification regarding an outage on our core network. Date: Tuesday, 5th February 2019 Start time: 11:00 GMT End time: 11:13 GMT Services affected: Internet connectivity (external) Report: During this window packet loss and high latency were experienced to multiple destinations by ISPs worldwide. The root cause was multiple device failures at Tier 1 network service provider CenturyLink. The impact of this outage was not limited to our network and ISPs worldwide were affected during reconvergence. Connectivity to IP Voice services and directly peered networks was not impacted. External notes appear below. Regards, David Croft 02/05/2019 11:49:06 GMT - The IP NOC has engaged an equipment vendor, Tier III Technical Support, and Operations Engineering to investigate multiple devices that went down. Stability is being validated after most of the devices recovered without any intervention. 02/05/2019 11:19:42 GMT - On February 05, 2018 at 11:00 GMT, CenturyLink identified a service impact in between in all markets network wide. The IP NOC is engaged and currently investigating the suspected equipment issue. Please be advised that updates for this event will be relayed at a minimum of hourly unless otherwise noted. The information conveyed hereafter is associated to live troubleshooting effort and as the discovery process evolves through to service resolution, ticket closure, or post incident review, details may evolve. Read more » | |
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Dec 19 |
[Core Network] Informational Notice 18th December 2018 - Barclays - Update 1
Posted by David Croft on 19 December 2018 11:31 AM |
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This issue was resolved at 20:00 last night by Barclays rerouting their network traffic. Customers should now be able to successfully access barclays.net. Regards David Croft On Tue, 18 Dec 2018 at 16:31, David Croft <david.croft at comtec.com> wrote: > > A number of customers have reported an inability to access > https://cashmanagement.barclays.net/ since the weekend > > We have conclusively proved that there is no issue on our network, > even going as far as to packet capture at all of our border routers > which has verified that absolutely no response is being received from > 157.83.99.50 to the TCP SYN packets which initiate the connection. > > We have been in contact with Barclays's DDoS protection provider > Akamai/Prolexic who, while unable to divulge the exact problem due to > the nature of their business, have also absolutely confirmed that the > issue is not on their network but with Barclays. > > We have reached out to Barclays through multiple channels in an > attempt to reach an network engineer in the correct department to > diagnose and fix this problem however as yet they have not been > responsive. > > Regards > > David Croft > > -- > For urgent operational issues please always contact noc at comtec.com > or 0845 899 1423 and not any named individual. Read more » | |
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Dec 18 |
[Core Network] Informational Notice 18th December 2018 - Barclays
Posted by David Croft on 18 December 2018 04:31 PM |
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A number of customers have reported an inability to access https://cashmanagement.barclays.net/ since the weekend We have conclusively proved that there is no issue on our network, even going as far as to packet capture at all of our border routers which has verified that absolutely no response is being received from 157.83.99.50 to the TCP SYN packets which initiate the connection. We have been in contact with Barclays's DDoS protection provider Akamai/Prolexic who, while unable to divulge the exact problem due to the nature of their business, have also absolutely confirmed that the issue is not on their network but with Barclays. We have reached out to Barclays through multiple channels in an attempt to reach an network engineer in the correct department to diagnose and fix this problem however as yet they have not been responsive. Regards David Croft Read more » | |
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Nov 18 |
[Shared Web Hosting] Final notice of withdrawal of PHP 5
Posted by David Croft on 18 November 2018 09:31 AM |
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This is an advisory notice to customers still running on PHP 5 versions. Start date: Saturday, 29th December 2018 Start time: 00:00 GMT (UTC+0000) End date: Sunday, 30th December 2018 End time: 23:59 GMT (UTC+0000) Purpose: As previously announced, all PHP 5 versions are end of life and PHP 5.6 will stop receiving security updates after 31st December 2018 [1]. All remaining websites on shared hosting running PHP 5.6 will be upgraded to PHP 7 during this maintenance window. Customers with dedicated servers will not be affected, although they are strongly advised to upgrade as PHP 5.6 will receive no further security support and we will be unable to support it. Services affected: Shared web hosting customers running PHP 5 versions. Impact: HIGH - Customer websites will be upgraded to PHP 7 and this will entail a short outage of the website as well as potential ongoing disruption if the software is not compatible with PHP 7. As this contains a major software version upgrade, this e-mail serves as 30 days notice of a change to the technical functionality of the Service that does not diminish the Service under clause 2.5 of the Master Services Agreement. Action Required: We recommend that customers verify in advance that their software is compatible with PHP 7 and if necessary upgrade it [2]. Regards, David [1] https://secure.php.net/supported-versions.php [2] https://secure.php.net/manual/en/migration70.php Read more » | |
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Nov 5 |
Christmas moratorium 2018-2019
Posted by David Croft on 05 November 2018 07:50 PM |
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Please be advised of the following Christmas moratorium scheduled on our network. Start date: Tuesday, 11th December 2018 End date: Friday, 4th January 2019 Purpose: In line with industry best practice, we and our suppliers will be instituting our annual change freeze between these dates in order to protect customer services. Services affected: All. Impact: There will be an moratorium on changes across our network during this period. Provision activities may be delayed and lead times will be impacted if they fall within or after this window. Repair activities will not be affected. If we carry out any maintenance activity during this window, it will be for emergency reasons and will be carried out to protect customer service and the network from an uncontrolled loss of service. Please ensure any new orders are submitted in good time to avoid being affected by this window. Please note that a few of our suppliers have extended moratoriums greater than the above time period and our ability to deliver certain orders may be impacted by this. Customers will be advised at the point of order if this affects them. Regards, David Croft Read more » | |
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Oct 29 |
EMERGENCY Maintenance window 30th October 2018
Posted by David Croft on 29 October 2018 11:14 AM |
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Please be advised of the following maintenance window scheduled on our core network: Start date: Tuesday, 30th October 2018 Start time: 22:00 GMT (UTC+0000) End time: 02:00 GMT (UTC+0000) Wednesday Purpose: The purpose of this work is to improve network reliability and mitigate a known potential cause of network instability. - Adjust IGP routing protocol parameters. - Migrate one of the redundant route reflectors to a dedicated router. Services affected: Core network. Impact: LOW - No operational impact is expected during this window. Please note: This maintenance window is being declared as EMERGENCY without the normal notice period due to the need to urgently prevent the occurrence of a known potential network instability. Regards, David Croft Read more » | |