Network Protocol Manager for IS-IS supports SNMPv1, v2c, and v3 for the IS-IS MIB objects that are defined in RFC 1195. It does not receive or process SNMP traps.
Because the IS-IS MIB is used by Juniper devices but not by Cisco devices, Network Protocol Manager for IS-IS uses:
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SNMP discovery and SNMP polling to discover and monitor the IS-IS topology for Juniper devices.
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CLI discovery and CLI polling to discover and monitor the IS-IS topology for Cisco devices.
The CLI commands that are invoked for IS-IS discovery are identified in the Smarts Network Protocol Manager Discovery Guide Supplement , and the CLI commands that are invoked for IS-IS monitoring are described in “CLI commands for IS-IS monitoring” on page 166.
For Juniper devices, Network Protocol Manager for IS-IS reads the IS-IS MIB objects that are identified in the Smarts Network Protocol Manager Discovery Guide Supplement to discover the following IS-IS objects:
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IS-IS areas
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IS-IS services
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IS-IS networks
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IS-IS interfaces
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IS-IS neighbor endpoints
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IS-IS adjacencies
Network Protocol Manager for IS-IS then proceeds to monitor the discovered IS-IS objects by polling the IS-IS MIBs on the managed devices.