CCNA - Capitulo 17

CCNA - Capitulo 17

1. DEVICES IN A SMALL NETWORK

   • SELECTION FOR A SMALL NETWORK
     • FACTORS MUST BE CONSIDERD WHEN SELECTIN NETWORK DEVICES
       • COST
         • SWITCH
         • ROUTER
         • ACCESS POINT
         • FIREWALL
         • IS DETERMINED BY CAPACITY & FEATURES
           • CAPACITY AND FEATURES
           • NUMBERS
           • TYPES OF PORTS AVAILABLE
           • MANAGEMENT CAPABILITIES
           • EMBEDDED SECURITY TECHNOLOGIES
           • AMOUT OF REDUNDACY
       • SPEED AND TYPES OF PORTS/INTERFACES
         • NEWER COMPUTERS HAVE BUILT-IN
           • 1GBPS NICs
         • SERVERS MAY EVEN HAVE
           • 10 GBPS PORTS
       • EXPANSABILITY
         • FIXED CONFIGURATION
           • SPECIFIC NUMBER AND TYPE OF PORTS OR INTERFECES AND CANNOT BE EXPANDED
         • MODULAR DEVICES
           • ADD NEW MODULES
         • ARE AVAILABLE WITH ADDITIONAL PORTS HIGH SPEED UPLINK ON SWITCHES
       • OPERATING SYSTEM FEATURES AND SERVICES
         • LAYER 3 SWITCHING
         • NETWORK ADDRESS TRANSLATION (NAT )
         • VOICE OVER IP (VOIP)
         • QUALITY OF SERVICE (QOS)
         • SECURITY
         • DYNAMIC HOST CONFIGURATION PROTOCOL (DHCP)
   • REDUNDANCY
     • ALTERNATE PATHS
     • HELPS TO ELIMINATE SINGLE POINTS OF FAILURE
     • IMPORTANT NETWORK DESIGN RELIABILITY
       • REDUNDANCY IS REQUIRED
         • REDUNDANT ROUTERS / FIREWALLS
           • HA FIRWALL
           • VRRP
         • REDUNDANT SWITCHES
           • MLAG
         • REDUNDANT LINKS
           • ETHERCHANNEL
           • SECOND SERVICE PROVIDER AS BACKUP
         • REDUNDANT SERVER
   • IP ADDRESSING FOR A SMALL NETWORK
     • CREATE SCHEME IP ADDRESSING
       • END USER DEVICES
         • THE NUMBER AND TYPE OF CONNECTIONS
           • WIRED
           • WIRELESS
           • REMOTE ACCESS
       • SERVERS AND PERIPHERALS DEVICES
         • PRINTERS , SECURITY CAMERAS
       • INTERMEDIARY DEVICES
         • SWITCHES
         • ROUTERS
         • ACCESS POINTS
       • PLAN , DOCUMENT , AND MANTAIN AN IP SCHEME
     • PLAN
     • ALL HOSTS AND DEVICES
       • HAVE A UNIQUE ADDRESS
   • TRAFFIC MANAGEMENT
     • CONSIDER THE VARIOUS TYPES OF TRAFFIC
       • VOZ
         • HIGHT PRIORITY
       • SMTP
         • NORMAL PRIORITY
       • FTP
         • LOW PRIORITY
       • MESSAGES
         • NORMAL PRIORITY

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