Name:Demystifying and Evaluating Router Resiliency  
Type: White Paper
Size: 600 KB
Date: October 2002

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Demystifying and Evaluating Router Resiliency

Do you need a redundant router at every POP/CO?

Responding to carrier demands to improve IP network reliability, several router vendors recently announced new technologies such as MPLS Fast Reroute, Graceful Restart, Hitless Upgrade, and Non Stop Routing. In this technical paper, we demystify resiliency technologies and show how to evaluate performance claims with some practical test scenarios. Topics covered include

• Router Resiliency is Number One
  • The True Cost of IP Network Outages
    
  • The Cause of Network Failures
    
• Demystifying Router Resiliency
  
  • Layer 1 and 2 Link Protection
    
  • Hot Standby Control Cards
    
  • Non-stop Forwarding
    
  • Graceful Restart
    
  • Non-stop Routing
    
  • Hitless Upgrade
    
• Redundant Configurations
  
• Measuring Routing Resiliency
  
  • Evaluating and Measuring Non-stop Forwarding
    
  • Evaluating and Measuring Graceful Restart
    
  • Evaluating and Measuring Hitless Restart
    
  • Evaluating and Measuring Non-stop Routing
    
  • Evaluating and Measuring MPLS Fast Reroute