Date : 17 December 2007
Time : 1630-1715
Location: Brickfield Data Center
The Problem : Network Intermittent on Access Layer
Customer Affected : Shared Web Hosting Customer
Cause of the Problem
1. Customer attack each other and cause access layer intermittent
2. Congestion due to Broadcast Storm
Action Plan
1. Unplug suspected customers’ uplink from the network
Preventive Measures
1. Network Monitoring System will be deployed in early of 2008 for faster detection and prevention.
2. Apply new filter on Network Intrusion Prevention System
Status : Problem has been fixed. Currently network is under normal operation since 5:15pm 17 Dec 2007
Alternative Solution
1. Enforce customer to block unused ports/patching
Tuesday, December 18, 2007
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