To: heanet-faults@listserv.heanet.ie
From: Garwin Liu <garwin.liu@heanet.ie>
Subject: HEA-NOC/20100218-14 [CLOSE] BT PEW                              
X-HEAnet-TicketID: 20100218-14
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In-Reply-To: <20100218-14-3@mousetrap.hea.net>
References: <20100218-14-3@mousetrap.hea.net>
<20100218-14-2@mousetrap.hea.net> <20100218-14-1@mousetrap.hea.net>
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Ticket Number: HEA-NOC/20100218-14     Ticket Status: CLOSE
Ticket Type:   scheduled               Resolver:      BT Ireland
Ticket Opened: 20100218 17:23 UTC      Problem Start: 20100313 00:01 UTC
Ticket Closed: 20100301 11:39 UTC      Problem End:   20100313 12:01 UTC

Site/line:     CAO, NUIM, St. Angela's, Tipp Inst

Problem Description:
BT Ireland will be performing planned engineering works 100307-INFRA-CAT1
as part of our network improvement programme. The scope of work involves
the upgrading and replacement of internal fibre patch leads to ensure the
efficient use of fibre on our national fibre network.

The planned work is scheduled to commence on Sunday 7th March at 00:01
hours with a maintenance window of 12 hours.

The circuit(s) listed will be impacted. Where a “Loss of Diversity” is
indicated the circuit will experience a protection switch and be without
diversity for up to approx 30 minutes. Where “Outage” is indicated, the
actual outage time will be up to approx 30 minutes.

Problem Effects:
Please see details of Circuits impacted below
HEAnet -
HEAN105011 - Outage,
HEAN107519 - Loss of Diversity,
HEAN107521 - Loss of Diversity,
HEAN107521/VC3S.01 - Loss of Diversity,
HEAN107521/VC3S.02 - Loss of Diversity,
HEAN107521/VCG3 - Loss of Diversity,
HEAN107523 - Loss of Diversity

Problem History:
20100218 17:15 COC Opened Ticket. NUIM will not lose connectivity because
it is protected by another circuit. All other affected clients should not
lose connectivity because this outage will cause a Loss of Diversity only

20100219 10:42 COC This has been swtiched to the 13th of March 2010 by BT.

20100301 11:38 GL THIS WORK HAS BEEN CANCELLED. BT will reschedule at a
later date.

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