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devSnmp
SNMP – Simple Network Management Protocol
Telecom industry standardSupported in all enterprise-targeted
(LAN) network devices and in most service provider-targeted (WAN) devices.
devSnmp
What is it used for in EPICS?Co-relate control system aberrations with
network traffic.
How?Retrieve statistical information from
network switches and routers.
devSnmp
FeaturesQueries SNMP-enabled devices
Communications equipment i.e. switches, routers
Anything that supports SNMP Input only, no output (yet)Uses net-snmp APIs
devSnmp
EPICS record types supportedLonginAnaloginStringin
devSnmp
SNMP data typesCounterSigned integer IPAddress,NetworkAddressOIDStringGauge (records peak)TimeTicks
devSnmp
Counters,Gauges are at least 32-bit unsigned (SNMPv1). Some are 64-bit unsigned (SNMPv2)
EPICS longin is 32-bit signed. use EPICS analogin.
EPICS strings are 40 chars max
devSnmp
Other possible uses IOC management?Workstation/server management????
devSnmp
To do/enhancementsOutput support?Trap/Alarm support?
devSnmp
AlternativesUse other available SNMP utilities to log
SNMP data. Use the new archiver???.???
