4. Problem resolution
Grenada ECFS issue analysis
Summary of Issue on Core Platforms Lost
Level 1 Level 2 Level 3 Services Affected Comment
International services traverse
ECFS (Alcatel) E3 BSC (Nortel) Sonus Voice , Mobile MPLS/ Sonus Platform
ECFS (Erricson)
MPLS ( Alcatel
Sonus Voice , Internet,
MPLS ( Alcatel Primary) Lime WAN
Sonus Voice , Internet,
Voice (international), Internet, Service traverse MPLS platform
Enterprise into SVD and BGI Pnodes
Voice (international), Internet, Service traverse MPLS platform
Example
GCN Secondary) Lime WAN Enterprise into SVD and BGI Pnodes
Deep
Suspected Root Dive
Ref Activity Item Accountable resource Responsible resource Symptom Issue Comment Cause Correctivemade for South bound Required
Provision action
Loss of southbound Provisioned connectivity, termination and
connectivity on all services redundancy No south bound connectivity demux capability for Erricson
1 Design Network Build Peter Jones Milton Creque via MPLS platform inadequate in place for Erricson platform Optical failure platform for 10 Gig links x
Different info presented to Duplication of efforts by
customers on resolution - Shauniel and Steffan to report Timing / One scheduled meeting / One
2 Post Communication Errol K Miller Josephine Walters Irate customers LIMT / RIMT into both teams. Bureaucracy message
ability to locate and un-availability of test
confidence around root of determine fault equipment and required Provision of test equipment and
3 Pre / Post Fault location Peter Jones Milton Creque issue accurately training to operate personnel required training to operate
