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GB/T 16976-1997 Information technology—Telecommunications and information exchange between systems—Use of X.25 to provide the OSI Connection-mode Network Service via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15126-2008 Information technology - Open system interconnection - Network service definition 960 (USD) via email in 1-8 business day VALID
GB/Z 17977-2000 Information technology--Telecommunication and information exchange between systems--OSI routing framework 270 (USD) via email in 1-3 business day VALID
GB/T 17180-1997 Information processing systems--Telecommunications and information exchange between systems--End system to intermediate system routeing exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 15126-1994 Information processing systems-Data communications-Network service definition via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17179.4-2000 Information technology--Protocol for providing the connectionless-mode network service--Part 4:Provision of the underlying service by a subnetwork that provides the OSI data link service 240 (USD) via email in 1-3 business day VALID
GB/T 17179.3-2000 Information technology--Protocol for providing the connectionless-mode network service--Part 3:Provision of the underlying service by an X.25 subnetwork 300 (USD) via email in 1-3 business day VALID
GB/T 17963-2000 Information technology--Open Systems Interconnection --Network layer security protocol 1440 (USD) via email in 1-10 business day VALID
GB/T 17972-2000 Information processing systems--Data communications--Use of the X.25 packet level protocol in local area networks 240 (USD) via email in 1-3 business day VALID
GB/T 15274-1994 Information processing systems-Open systems interconnection-Internal organization of the network layer via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 16974-2009 Information technology—Data communications—X.25 Packet Layer Protocol for Data Terminal Equipment 2820 (USD) via email in 1-10 business day VALID
GB/Z 16506-2008 Information technology - Telecommunications and information exchange between systems - Protocol combinations to provide and support the OSI network service via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 16966-1997 Information technology—Provision of the OSI connection-mode network service by packet mode terminal equipment connected to an integrated services digital network(ISDN) via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 16974-1997 Information technology—Data communications—X.25 Packet Layer Protocol for Data Terminal Equipment via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17179.1-1997 Information technology--Protocol for providing the connectionless-mode network service--Part 1: Protocol specification via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 17179.2-2000 Information technology--Protocol for providing the connectionless-mode network service--Part 2:Provision of the underlying service by a GB/T 15629(ISO/IEC 8802)subnetwork 180 (USD) via email in 1-3 business day VALID
GB/T 16678.5-2000 Information technology--Fibre Distributed Data Interface (FDDI)--Part 5:Hybrid Ring Control (HRC) 1380 (USD) via email in 1-10 business day VALID
GB/T 17179.1-2008 Information technology - Protocol for providing - The connectionless-mode network service - Part 1:Protocol specification 900 (USD) via email in 1-8 business day VALID
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