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TS and MAINTENANCE (TOOLS (CISCO IOS (INFO IN TRANSIT (PACKET CAPTURE,…

- - - - SHOW/DEBUG
    - - CISCO CONFIGURATION PROFESSIONAL (CCP)
    - - BACKUP
        
        configure replace
      - show archive
    - - logging console [severity level]
        logging buffered [severity_level]
        logging trap [severity_level]
        logging [ip_address]
  - - - DEVICE STATISTICS
      - COMPOSED
        
        SNMP AGENT
        
        NETWORK MANAGEMENT SYSTEM
        
        MIB
    - - TRAFFIC FROWS
      - TRAPS
  - - - "|"
        "^"
        "include"
        "exclude"
        "begin"
        "section"
        "longer-prefixes"
        "redirect"
        "append"
    - - show processes cpu
        show memory
        show interfaces
        show controllers
        show platform
    - - PACKET CAPTURE
      - SPAN/RSPAN
- - - - Problem REPORT
        
        Problem DIAGNOSIS
        
        Problem RESOLUTION
    - - TOP-DOWN
        
        BOTTOM-UP
        
        DIVIDE-AND-CONQUER
        
        FOLLOWING the TRAFFIC PATH
        
        COMPARE the CONFIGURATIONS
        
        COMPONENT SWAPPING
    - - Problem REPORT
        
        COLLECT INFORMATION
        
        EXAMINE collected information
        
        ELIMINATE potential causes
        
        PROPOSE AND HYPOTHESIS
        
        VERIFIED hypothesis
        
        Problem RESOLUTION
  - - - HW and SW INSTALLATION and CONFIGURATION
        
        TS problem REPORTS
        
        Monitoring and tuning network PERFORMANCE
        
        Planning for NW EXPANSION
        
        DOCUMENTING the network and any changes made to the network
        
        Ensuring compliance with legal regulations and CORPORATE POLICIES
        
        SECURITING the network against internal and external threats
        
        BACKING-UP files and databases
    - - STRUCTURED
      - INTERRUPT-DRIVEN
    - - FCAPS
        
        FAULT
        CONFIGURATION
        ACCOUNTING
        PERFORMANCE
        SECURITY
      - ITIL
      - CISCO LIFE CICLES SERVICES
    - - LOGICAL TOPOLOGY DIAGRAM
        
        PHYSICAL TOPOLOGY DIAGRAM
        
        LISTING of INTERCONNECTIONS
        
        INVENTORY of NW EQUIPMENT
        
        IP ASSIGNMENTS
        
        CONF INFORMATION
        
        ORIGINAL DESIGN DOCUMENTS
      - MAINTAIN
        
        REQUIRE DOCUMENTATION
        SCHEDULE DOCUMENTATION CHECKS
        AUTOMATE DOCUMENTATION
- - - - MEMORY LEAK
      - MEMORY-ALLOCATION FAILURE
      - BUFFER LEAK
      - EXCESSIVE BGP MEMORY LEAK