LISTSERV mailing list manager LISTSERV 16.5

Help for HEANET-FAULTS Archives


HEANET-FAULTS Archives

HEANET-FAULTS Archives


HEANET-FAULTS@LISTSERV.HEANET.IE


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

HEANET-FAULTS Home

HEANET-FAULTS Home

HEANET-FAULTS  May 2006

HEANET-FAULTS May 2006

Subject:

HEA-NOC/20060413-1 [UPDATE] Unscheduled outage to St. Angelas College

From:

Paul Cosgrove <[log in to unmask]>

Reply-To:

Paul Cosgrove <[log in to unmask]>

Date:

Wed, 17 May 2006 17:00:19 +0100

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (144 lines)

Ticket Number: HEA-NOC/20060413-1      Ticket Status: UPDATE
Ticket Type:   unscheduled             Resolver:      
Ticket Opened: 20060413 13:51 UTC+1    Problem Start: 20060413 13:21 UTC+1
Ticket Update: 20060517 17:00 UTC+1    Problem End:   

Site/line:     St. Angela's

Problem Description:
There is an unscheduled outage to St. Angela's College, Sligo.

Problem History:
20060413 13:49 CMC Attempted to contact customer, will retry at 14:00 -
during STACS business hours.

20060413 14:26 CMC Contacted Customer who confirm there appear to be no
problems with equipment on-site. Contacted BT who have issues ticket
#1-282094389

20060413 15:46 CMC Connectivity restored after link between BT equipment
and HEAnet router is re-initialised on-site.

20060414 14:54 OMG St. Angela's link has gone down again. Contacted Paul
Foley but couldn't reach him.  Contacted BT again; they have issued ticket
#1-285444211. Rang Damien Kearns in St. Angela's who said that Paul is out
of the country and that there wouldn't be any ICT staff back in until
Tuesday at the earliest (which also means that there is no one to
facilitate access to St. Angelas should BT request it).

20060414 15:39 OMG Dylan from BT called back to say that this is a
recurring problem with this circuit and that the cables need to be
reseated on the customer equipment anytime any part of the circuit goes
down. BT have parked the ticket until Tuesday when someone is back in St.
Angelas to reseat the cables.

20060417 18:13 AH Connectivity returns at 17:55.

20060420 15:30 PC We have been seeing intermittent bursts of CRC and input
errors on the ATM switch in Galway, on incoming traffic from BT to our
switch.

Have informed BT and asked them to re-check their equipment to see if they
also see errors.

20060420 16:40 PC - BT have confirmed that they are seeing bit errors on
their radio equipment in St. Angelas and have suggested swapping out an
interface on the radio kit there.  This is likely to require downtime. 
Assuming no further deterioration BT hope to make the change on Monday. I
have emailed an update to the main contacts at St Angelas and have
arranged to speak to the BT enginner tomorrow to obtain further details of
the work, including the time period required.

20060421 09:05 PC - Connectivity to St Angelas was lost at 07:57 this
morning.  Have informed BT and requested that they send out an engineer as
soon as possible.  Haven't been able to reach Damien yet, but have left a
voice message suggesting reseating the cable to try to restore
connectivity until an engineer can get to site.

20060421 09:55 PC - St Angelas rebooted their router around 09:37, and
that seems to have restored connectivity.  However we are still seeing
input errors on our galway atm switch due to traffic we receive from the
St Angelas router (via BT).

20060421 12:04 PC - BT will have an engineer on site at 4pm today and also
have an engineer tomorrow if that proves necessary.  Paul Foley will be
available on site and I have passed on his contact details to BT.

20060422 21:21 SOB Transistions continued during the day continuing until
19:17 when it went down and has remained down since then.

20060424 09:07 PC - Link transitions have continued to take place over the
weekend.  BT replaced the radio card at St Angelas, but were unable to
climb the radio mast as weather conditions made it unsafe to do so.  A BT
Engineer will again be on site this morning to perform further checks.

20060424 15:21 PC - BT have notified ourselves and St Angelas that they
will be taking the radio link down for 1 hour while testing takes place. 
They are curently waiting for winds to die down before beginning this work
on the mast.

20060424 16:40 PC - BT have brought the circuit down at 15:30 and are
continuing to work on it (no user traffic can be sent).  Despite replacing
the interface (on Friday) and upgrading the radio software (this morning)
BT are still seeing 'severely errored seconds' and 'frame loss seconds'
errors on their radio equipment.  So far they have been unable to ascend
the mast due to rain and have been checking the fibre instead.

20060424 18:38 PC - Having tested the fibre and isolated sections of the
network, BT believe that an intermediate radio mast may be causing the
issues.  In addition to the two endpoints, two intermediate outdoor radio
units are used as direct line of sight is not possible end-to-end.  Wet
weather has prevented the replacement of the faulty unit so far.  I have
contacted Paul Foley with an update and have asked the BT engineer to do
so as soon as he is finished this evening.  This is so that Paul can make
a call as to whether, if the replacement  work is not possible this
evening, whether the circuit should be restored to its previous state (as
it was earlier today).  Currently the link is down.

20060425 09:07 PC - BT commenced changing the Outdoor unit (ODU) around
08:15 this morning.  The circuit is currently still down.

20060425 09:34 PC - The ODU RF interface has been replaced but BT
currently have the fibres attached into test equipment to verify the fault
has been rectified.  This is expected to take an hour during which the
circuit will remain down.

20060425 10:52 PC - BT have run test across the replaced ODU RF interface
and they are no longer seeing errors on that span.  They are now going
back to StAngelas to perform full end-to-end tests which they have
estimated to take up to 2 hours.
Andrew expects to arrive in 10 mins and I have left a message for Paul
Foley to this effect and will continue to try to contact Paul.

20060425 12:00 PC - After sucessfully testing the link to full capacity,
BT reconnected the link at 11:45.  Our own tests have also run without
errors.  The interface counters on the ST Angelas and Galway ATM switch
have been cleared and we will continue to monitor the link.

20060425 14:03 JH BT Ireland called to report the circuit has been clear
of errors for 2 hours.
 
20060503 12:40 PC - A small number of errors (1x input error & 5x CRC
errors) occured at around 4pm on 25th April, which was the day the link
was reestablished.  No other errors have occured over the last eight days.

20060511 14:10 BB The circuit transitioned down/up at 14:09 -
investigating error counts and possible reasons

20060516 17:29 PC - The circuit transitioned down/up at 16:20, recovering
after 17 seconds.  Unable to contact the customer at the moment to
determine if work was taking place, so have copied & then cleared router
error counters.

20060517 12:51 PC - No work that could have affected the circuit was being
carried out in St Angelas yesterday.  Have logged the call as a P2 with BT
Ireland, their ref: 1-311500827.

20060517 16:48 PC - BT identified "low receive errors" on the radio link
and have indicated these are likely to be caused by weather conditions,
such as rain.  The radio team will continue monitoring the circuit over
the next few days.

-- 
This ticket can be monitored at http://www.hea.net/tickets/20060413-1

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003
December 2002
November 2002
October 2002
September 2002
August 2002
July 2002
June 2002
May 2002
April 2002
March 2002
February 2002
January 2002
December 2001
November 2001
October 2001
September 2001
August 2001
July 2001
June 2001
May 2001
April 2001
March 2001
February 2001
January 2001
December 2000
November 2000
October 2000
September 2000
August 2000
July 2000
June 2000
May 2000
April 2000
March 2000
February 2000
January 2000
December 1999
November 1999
October 1999
September 1999
August 1999
July 1999
June 1999
May 1999
April 1999
March 1999
February 1999
January 1999
December 1998
November 1998
October 1998
September 1998
August 1998
July 1998
June 1998
May 1998
April 1998
March 1998
February 1998
January 1998
December 1997
November 1997
October 1997
September 1997
August 1997
July 1997
June 1997
May 1997
April 1997
March 1997
February 1997
January 1997
December 1996
November 1996
October 1996
September 1996
August 1996
July 1996
June 1996
May 1996
April 1996
March 1996
February 1996
January 1996
December 1995
November 1995
October 1995
September 1995
August 1995
July 1995
June 1995
May 1995
April 1995
March 1995
February 1995
January 1995
December 1994
November 1994
October 1994
September 1994
August 1994
July 1994
June 1994
May 1994
April 1994
March 1994
February 1994
January 1994
December 1993
November 1993
October 1993
September 1993
August 1993
July 1993
June 1993

ATOM RSS1 RSS2



LISTSERV.HEANET.IE

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager