Cisco ICND1

7.0 Troubleshooting

• 7.1 Troubleshoot and correct common problems associated with IP addressing and host configurations
  
  
• 7.2 Troubleshoot and resolve VLAN problems
  
  
  • 7.2.a Identify that VLANs are configured
    
    
  • 7.2.b Verify port membership is correct
    
    
  • 7.2.c Correct IP address is configured
    
    
• 7.3 Troubleshoot and resolve trunking problems on Cisco switches
  
  
  • 7.3.a Verify correct trunk states
    
    
  • 7.3.b Verify correct encapsulation is configured
    
    
  • 7.3.c Correct VLANs are allowed
    
    
• 7.4 Troubleshoot and resolve ACL issues
  
  
  • 7.4.a Verify statistics
    
    
  • 7.4.b Verify permitted networks
    
    
  • 7.4.c Verify direction
    
    
    • 7.4.c (i) Interface
      
      
• 7.5 Troubleshoot and resolve Layer 1 problems
  
  
  • 7.5.a Framing
    
    
  • 7.5.b CRC
    
    
  • 7.5.c Runts
    
    
  • 7.5.d Giants
    
    
  • 7.5.e Dropped Packets
    
    
  • 7.5.f Late Collisions
    
    
  • 7.5.g Input/Output errors