Chapter 3: Multiprotocol Network Design

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Chapter 3 Multiprotocol Network Design

• Designs That Include Multiple Protocols
• IPX Design Concepts
• AppleTalk Design Concepts
• SNA Design Concepts

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IPX, AppleTalk, and SNA Protocols
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Multiprotocol Design Requirements and Constraints

• Internetwork Packet Exchange (IPX) networks
• AppleTalk networks
• Systems Network Architecture (SNA) networks

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Design Considerations

• IPX
• IPX network number addressing
• IPX frame types
• Methods for securing data
• AppleTalk
• Network numbers or network number addressing
  range
• Zones
• SNA
• Mainframe connectivity requirements
• Network segments, routers, Media Access Control
  (MAC) layer bridges, or source routing bridges

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IPX in Multiprotocol Designs
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AppleTalk in Multiprotocol Designs
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SNA in Multiprotocol Designs
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IPX Addressing
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Determining IPX Frame Types

• Microsoft Windows automatic detection
• Frame types
• Direct hosting
• Implementation considerations

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Connecting IPX

• Integrate IPX into IP networks with
  Point-to-Point Tunneling Protocol (PPTP) or Layer
  2 Tunneling Protocol (L2TP).
• Protect IPX data by using virtual private network
  (VPN).
• Use Microsoft Proxy Server 2.0 for IPX to IP
  gateway.

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AppleTalk Addressing

• Similar to IP addressing
• Network number
• Node ID
• Considerations
• Base network number range on expected number of
  nodes.
• Allow for network expansion.
• Assign unique network numbers.

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AppleTalk Zones

• Allow users to find resources
• Should be based on logical divisions
• Should use smallest possible number of zones

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SNA Networks

• Data Link Control (DLC) is the most common SNA
  protocol.
• DLC uses source routing bridges or MAC-layer
  bridges.
• Using SNA gateways reduces the number of network
  segments that require DLC.

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SNA and TCP/IP Integration

• Reduces network traffic
• Offers integration choices
• Use gateway such as Microsoft SNA Server.
• Install TCP/IP on devices.

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Chapter Summary

• Microsoft Windows 2000 supports IPX, AppleTalk,
  and SNA.
• Organizational requirements and constraints
  should be collected first for
• IPX
• AppleTalk
• SNA