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18.305. Cross Net Debugger
The xnet protocol (Cross Net Debugger) is found over the IP layer (IANA protocol number: 15).
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18.306. Xerox Network Systems
Xerox Network Systems is a protocol suite originally designed by Xerox PARC. Many PC
networking companies such as Novell and 3Com used or currently use a variation of XNS as their
primary transport protocol stack.
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18.307. XEROX NS IDP
The xns_idp protocol (XEROX NS IDP) is found over the IP layer (IANA protocol number: 22).
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18.308. XTP
Xpress Transport Protocol (XTP) is a transport layer protocol for high-speed networks promoted
by the XTP Forum developed to replace TCP.
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Network Service
udp
1
1
Network Utilities
Network Service
ip
18
1
Not Used
Network Service
8021q
eth
snap
17
1
Network Utilities
Network Service
ip
18
1
Not Used
Network Service
ip
2
1
Transport Layer Protocols
262
Chapter 18: Network Service