Chapter 3: Multiprotocol Network Design

dargspurNetworking and Communications

Oct 27, 2013 (3 years and 11 months ago)

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1

Chapter 3: Multiprotocol Network
Design


Designs That Include Multiple Protocols


IPX Design Concepts


AppleTalk Design Concepts


SNA Design Concepts


2

IPX, AppleTalk, and SNA Protocols


3

Multiprotocol Design Requirements
and Constraints



Internetwork Packet Exchange (IPX)
networks


AppleTalk networks


Systems Network Architecture (SNA)
networks


4

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


5

IPX in Multiprotocol Designs


6

AppleTalk in Multiprotocol Designs


7

SNA in Multiprotocol Designs


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IPX Addressing


9

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


13

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.


14

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