Network Documentation Flashcards

1
Q

Internal operating procedures

A
  • Organizations have different business objectives
    • Processes and procedures
  • Operational procedures
    • Downtime notifications
    • Facilities issues

• Software upgrades - Testing, change control

  • Documentation is the key
    • Everyone can review and understand the policies
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2
Q

Mapping the network

A
  • Networks are built in phases
    • Large chunks at a time
  • You can’t see most of it
    • Fiber and wires in the walls and ceiling
  • Documentation is essential
    • Both physical and logical
  • One of the best things you can do
    • Especially as the new hire
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3
Q

Logical network maps

A
  • Specialized software
    • Visio, OmniGraffle, Gliffy.com
  • High level views
    • WAN layout, application flows

• Useful for planning and collaboration

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4
Q

Physical network maps

A
  • Follows the physical wire and device

* Can include physical rack locations

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5
Q

Change management

A

• How to make a change
• Upgrade software, change firewall configuration,
modify switch ports

  • One of the most common risks in the enterprise
    • Occurs very frequently
  • Often overlooked or ignored
    • Did you feel that bite?

• Have clear policies
• Frequency, duration, installation process,
fallback procedures

  • Sometimes extremely difficult to implement
    • It’s hard to change corporate culture
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6
Q

Managing your cables

A

• ANSI/TIA/EIA 606
• Administration Standard for the Telecommunications
Infrastructure of Commercial Buildings

  • Presentation of information
    • Reports, drawings, work orders
  • Pathway, space, grounding
    • Identifiers, Labeling
  • Cables
    • Identifiers, labels, color coding, bar coding
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7
Q

Labeling

A
  • Everything is tagged and labeled
    • A standard format
  • Port labeling
    • CB01-01A-D088
    • CB01 - Main facility
    • 01A - Floor 1, space A
    • D088 - Data port 88
  • All cables are documented
    • Central database
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8
Q

System labeling

A

• Many people will work on a single workstation or
server
• There needs to be a standard reference

  • Unique system ID
    • Asset tag
    • System name
    • Serial number
  • Clearly visible
    • Especially in a data center
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9
Q

Circuit labeling

A
  • WAN circuits aren’t a problem
    • Until they are a problem
    • It’s outside your control
  • All components of the WAN
    • Demarc interface
    • CSU/DSU
    • Router
  • Label information
    • WAN provider Circuit ID
    • WAN provider phone number
    • Internal reference name
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10
Q

Patch panel labeling

A
  • Not much real estate
    • Fit a lot into a small space
  • Number each side of the link
    • Incremental
    • Geographically descriptive
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11
Q

Baselines

A
  • Broadly defined
    • What does it mean to you?
    • Application response time, network throughput, etc.
  • Point of reference
    • Accumulated knowledge
    • Examine the past to predict the future
    • Useful for planning
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