Ticket Number: HEA-NOC/19990331-03 Ticket Status: CLOSE
Ticket Type: Unscheduled Ticket Source: HEA-NOC
Ticket Scope: Line Site/Line: HEAnet <==> MCI
Ticket Owner: [log in to unmask] Problem Fixer: HEA-NOC
Ticket Opened: Problem Start: 19990331 16:00 UTC+1
Ticket Closed: 19990402 20:33:44 UTC Problem End: 19990402 11:10
Input errors on 6Mbps inter-continental circuit. Meta-frame parity errors
on one circuit cause CRC errors on aggregate IP circuit.
Sub-optimal performance resulting in reduced goodput on inter-continental traffic.
Capacity reduced, risk of router resets and route flap damping.
19:20 Fault reported to C&W, ticket #1827 of 31st March assigned.
23:00 Errors occurring on at least one E1.
C&W will stress-test E1-3 and E1-1 in order, one hour each.
11:10 C&W agree to stress test single 2Mbps circuit (E1-3) between
23:00 Thu and 06:00 Fri, UTC+1.
2nd April 10:00 C&W test E1-3 circuit, with assist from HEAnet NOC. No errors
seen on any circuit, both ends monitored for 8 hours. No HDLC, meta-
framing or IP errors during monitoring period.
Time to Fix:
43 hours 10 minutes.