At this point, you should have discovered what the problem is and how it manifested based on the following issues:
- Service outage/inaccessible
- Slow service
- Logging issues
- Dropped sessions
- Data corruption
The next step is to find the cause of the problem, for example:
- Cabling problems
- Connectivity between an Access Layer switch and a Distribution Layer switch, either in the server room or in the wiring closet
- DoS attack on a system (e.g., router, switch, or server)
- Software issue . . .
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