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Cisco S3C8. Network Management. Documentation. diagrams that indicate the path of the physical wiring layout; the type of cable; the length of each cable; the type of termination for the cable; physical location of each wall plate or patch panel, and; a labeling scheme for easy

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cisco s3c8

Cisco S3C8

Network Management

documentation
Documentation
  • diagrams that indicate the path of the physical wiring layout;
  • the type of cable;
  • the length of each cable;
  • the type of termination for the cable; physical location of each wall plate or patch panel, and;
  • a labeling scheme for easy
  • identification of each wire.
documentation1
Documentation
  • Also includes:
    • Layout of MDF
    • Layout of IDF
    • Physical layout of rack mounts
    • Auxiliary equipment & servers
    • Patch panel labels
    • Identification and configuration of all equipment in MDF and IDF
documentation2
Documentation
  • Also includes:
    • Server and workstation configuration details
    • Physical location
    • User
    • Network ID – IP address, MAC address
    • Subnet, Topology; IRQ, SMA
    • Software installed
    • O/S
    • Repair Record
documentation security
Documentation / Security
  • Soft
    • User rights, password, firewall support
  • Hard
    • Locking MDFs and IDJs
    • Who has access to MDF and IDF
    • How hosts are protected
    • Who has physical access to system
  • Documentation needs to be updated
data recovery
Data Recovery
  • UPS, Tape Backup, and Disk Arrays
    • Full, incremental, differential, copy and daily
    • Tape backup is cheap
  • Sequential Storage
  • Archive Bit
    • Allows for INCREMENTAL backup
      • Only backup what has changed since last backup date
disk redundancy
Disk Redundancy
  • Raid 0 stripes data across multiple disks, no parity
  • Raid 1 disk mirroring – disk duplexing – writes data to two identical partitions
  • Raid 2 writes across multiple disks with error checking
  • Raid 3 stripes data one byte at a time- dedicated parity drive
  • Raid 4 stripes one sector at a time- dedicated parity drive
  • Raid 5 stripes data and parity across

multiple disks

environmental factors
Environmental Factors
  • Static
  • Contaminants – smoke, dust and dirt
  • Heat – high temperatures
  • Protection
    • Isolate transformers; use regulators and line conditions and UPS
viruses
Viruses
  • Worm propagates itself
  • Virus infects files
  • Trojan disguised as a game, utility or application
    • Know where software came from
    • Don’t use unknown disks
    • Use current virus checker
network types
Network Types
  • Peer-to-peer
    • Workgroup network
      • Small number of workstations
        • W95 W98 Lantastic
        • 10 workstations
  • Client Server
    • Controlled by a NOS (Network Operating System
  • Unix
    • NFS security , multitasking, kernel, supports many users
network control
Network Control
  • User rights
  • Account numbers
  • Passwords
  • Access
baseline measurements
Baseline Measurements
  • Bandwidth used
  • Collisions
  • Broadcast traffic
scientific method trouble shooting
Scientific Method – Trouble Shooting
  • 1. Identify network/user problem.
  • 2. Gather data about network/user problem.
  • 3. Analyze data to come up with a possible solution to the problem.
  • 4. Implement solution to network to attempt correction to the system.
  • 5. If the problem isn't resolved, undo previous changes and modify data.
  • 6. Go to step 3