Because the standards-based IS-IS MIB is used by Juniper devices but not by Cisco devices, Network Protocol Manager for IS-IS uses:

  • SNMP discovery and SNMP polling to discover and monitor the IS-IS topology for Juniper devices.

  • 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 VMware Smart Assurance Network Protocol Manager Discovery Guide Supplement, and the CLI commands that are invoked for IS-IS monitoring are described in this section.

    Network Protocol Manager for IS-IS establishes Telnet, SSH1, or SSH2 sessions to the Cisco devices and invokes the following CLI command:

    show clns neighbors detail
    

    The command provides the target device’s CLNS neighbor interface connections (neighbor IP addresses).