SNMP history
Early: based upon ICMP messages (eg: ping, source routing, record routing)
A lot of informal network debugging is done using tcpdump, netstat, ifconfig etc
When the internet grew, Simple Gateway Management Protocol (SGMP) was developed (1987)
Build single protocol to manage OSI and IP
- CMIP (an OSI protocol) over TCP/IP {called CMOT}
- Goal: Keep object level same for both OSI and IP
- CMOT progressed very sluggishly
- SNMP: parallel effort. Very simple => grabbed the market.