The Other Protocol Suites
Lecture 2
IPX/SPX
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Novell’s proprietary protocol
Novell is now using TCP/IP
Routable
Connectionless
Addressing is automatic
Based on Xerox protocols called Xerox
Network System/Xerox Sequenced Packets
Supported by Novell Netware and Windows
through NWLink (allows Windows clients to
connect to Novell server)
IPX/SPX Protocols
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NCP – Netware Core Protocol
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SPX – Sequence Packet Exchange (TP)
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Routing tables shared among routers
Based on hops (metric)
Distance Vector
NLSP – Netware Link State Protocol
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Addressing, path selection
RIP – Routing Information Protocol
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Connection-oriented
End to end connectivity
IPX – Internetwork Packet Exchange
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Client functionality for applications (AP)
Connection-oriented
Only updates when changes to network occur
More efficient than RIP
SAP – Service Advertising Protocol
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Advertising network services to nodes
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Example: File and Print Services
IPX Addressing
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Hexadecimal address
Network address, an 8 character hex address,
is assigned to the main server by the
administrator
Addressing is automatic for the nodes.
Node portion is the node’s MAC address.
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AppleTalk Protocol Suite
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The least interoperable protocol
Routable
Nodes are assigned names
Supports logical groups of nodes called
“zones.”
AppleTalk Protocols
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AppleShare (AP)
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Consists of:
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AppleTalk ARP – AARP
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Manages file sharing
AppleTalk Session Protocol – ASP
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Session and Transport Layer Protocol
AppleTalk Filing Protocol – AFP
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Maps AppleTalk addresses to Ethernet and TR MAC addresses
AppleTalk Data Stream Protocol - ADSP
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AppleShare File Server
AppleShare Print Server
AppleShare PC
Session layer protocol
AppleTalk Transaction Protocol – ATP
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Transport layer protocol
Connectionless
AppleTalk Protocols
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Datagram Delivery Protocol - DDP
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EtherTalk Link Access Protocol – ELAP
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Distance vector protocol
Maintains routing tables
TokenTalk Link Access Protocol – TLAP
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Session layer protocol
Facilitates printing, file services
Routing Table Maintenance Protocol – RTMP
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Maps computer hostnames to network layer addresses
Printer Access Protocol – PAP
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Compatible with Ethernet Protocol
Name Binding Protocol – NBP
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Connectionless
Compatible with TR protocol
Zone Information Protocol – ZIP
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Facilitates grouping of computers in zones
AppleTalk Addressing
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Address is 24 bits
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16 bits – network address
8 bits – node address – auto assigned on
boot
Maximum nodes: 254
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AppleTalk Extended provides more nodes
by assigning a range of network addresses
NetBEUI
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Simple
Fast
Limited functionality
Good for very small networks (only one
segment)
Non-routable
NetBEUI Partners
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NetBIOS – provides session layer
connectivity
Server Message Block - SMB
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Provides communication between clients
and servers
NetBEUI Addressing
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Broadcasts name to network.
Uses NetBIOS name (friendly name)
15 characters (really 16 but one byte is
reserved for type)
Unique
Assigned by administrator