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Is icmp and snmp above tcp/ip or they are parallel?

Posted on 1998-02-04
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Last Modified: 2013-12-23
As subject. Also is there some real world
usage of UDP? Thanks.
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Question by:xzhang
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ICMP is part of the TCP/IP protocol stack. ICMP is a subset of IP. SNMP use TCP/IP as an transport protocol, it's like telnet or ftp. If you want to talk about the OSI model, SNMP is at layer 5,6,7 and ICMP is at layer 3. Real's world usage of UDP includes DNS lookups and SNMP.
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