NETSCREEN-VR-MIB

Description: Manages virtual router configuration, routing instances, and inter-VR routing on Juniper NetScreen devices.

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NETSCREEN-VR-MIB is a Juniper NetScreen (ScreenOS) vendor MIB for managing virtual routers (VRs), which are isolated routing instances used to segment routing tables within or across virtual systems (vsys). It exposes a table of configured virtual routers with identity, associated vsys, route-table sizing, and which dynamic routing protocols (OSPF/RIP/BGP) are enabled per VR. Its monitoring value is configuration/capacity status: administrators track current route counts against the maximum permitted routes per VR to catch a routing table nearing its configured limit, and confirm the expected dynamic protocols are enabled. It depends on companion NetScreen VR-scoped protocol MIBs (such as the OSPF-within-VR MIB) for the detailed protocol state of each virtual router. It is deployed on Juniper NetScreen firewalls used for multi-tenant or segmented routing environments. Engineers can download the NETSCREEN-VR-MIB file directly to load it into their MIB browser.

An administrator would walk vrTable/vrEntry, comparing vrNumRoutes to vrMaxRoutes for each vrName to catch a virtual router approaching its route-table capacity. The vrOspfRipBgpEnabled flags confirm which dynamic routing protocols are active on a given VR, and an unexpected combination would explain missing routes learned via a protocol thought to be enabled. The vrVsysName ties a virtual router back to its owning virtual system for multi-tenant accounting.

Monitors virtual router (VR) information including VR names, routing capabilities, OSPF/RIP/BGP status, and route statistics on Juniper firewalls.