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Please advise your clients accordingly with regards the maintenance below

Dear IS Customer

UPDATE of Dates and duration:

Emergency Seacom Maintenance Notification.

AFFECTED SERVICE: International Consumer DSL, Clear Channel & Velocity

AFFECTED POPS: international traffic between SA and London/New York

START DATE: Sat 24 Apr 10 07h00 (SAST)

END DATE: Sat 24 Apr 10 17h00 (SAST)

EXPECTED DURATION: up to 8 hours, but may vary

IMPACT: Service interruption - no connectivity

REASON FOR CHANGE: Seacom SMW4 repairs

IS REFERENCE: Seacom

ADDITIONAL INFO:

Seacom has advised that repair maintenance work will be performed on the international SMW4 cable on Saturday, affecting traffic across the Seacom cable system.

As repair work is at sea and dependant on a ship arriving at a designated position, times may vary and duration may vary. The above times are approximate.

Regards

The IS GSC

Dear IS Customer

Emergency Telkom Maintenance Notification.

AFFECTED SERVICE: International ADSL, Access & MPLS VPN

AFFECTED POPS: International traffic between SA and London/New York

START DATE: Thu 22 Apr 10 08h00 (SAST)

END DATE: Sat 24 Apr 10 16h00 (SAST)

EXPECTED DURATION:

IMPACT: Increased latency

REASON FOR CHANGE: SAT3 maintenance

IS REFERENCE: Telkom

ADDITIONAL INFO:

Telkom have advised that all traffic will be placed on restoration path,

starting at 08h00 on Thursday, in preparation for repairs. This will

result in increased latency on international traffic.

The SAT3 repair wotk will commence at 02h00 on Saturday morning and is

expected to take between 6 - 8 hours. However, an extended change window

has been scheduled as a contingency measure.

Regards

The IS GSC

Telkom have confirmed that the planned maintenance on the SAT3 undersea

cable system was completed successfully this morning. The normalisation

commenced at 02H05 this morning and completed at 10H15 today.

Latency levels have normalised across International network traffic

between SA & New York/London.

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The initial notification refers:

Dear IS Customer

UPDATE

We are still experiencing the following service event:

AFFECTED SERVICES: International network traffic (SAT3)

AFFECTED POPS: Between SA and New York/London

GRADE OF SERVICE IMPACT: Major

SERVICE IMPACT: Increased latency

CAUSE OF EVENT: Telco network failure

TIME: 4-2-10 09h38

OUR REF: 1-569983082

CURRENT STATUS: Investigating

ATTENDING: Upstream Service Provider

ADDITIONAL INFORMATION:

Telkom have advised that their upstream service provider, the SAT3

consortium, are still investigating the root cause of a power

configuration problem on the SAT3 undersea cable system.

As yet, they are unable to provide an Estimated Time to Repair (ETR),

and traffic will remain routed across the Restoration path (via SMW3,

ATL-2, SAT-2 and Telefonica links) until further notice, with increased

levels of latency. Customers may experience slower responses

internationally.

IS management remain in close communication with Telkom on this matter

on a daily basis. We will provide further feedback when it becomes

available from Telkom and the SAT3 consortium.