Guideline #1: Handling Failure

• Multiple connections should be used between switches in a manner that both improves performance and resiliency so that if a single cable or connector fails the network stays up and running. Discuss.

Guideline #2: Stability of Services

• Servers that provide important services like DHCP, DNS and file storage should be able to tolerate a network adapter or cabling failure and still provide services.
• The network must continue to run in the event of power related issues like brownouts or outages of short duration.

Guideline #3: Monitoring Network Devices

• Configuration and status information for all switches, routers, and servers should be gathered and monitored on a continual basis so that potential problems are quickly identified and corrected.