Interpreting the Enterprise-Specific MIMSTP MIB

The JUNOS software provides SNMP support for spanning-tree protocols on MX-series Ethernet Services routers.

The following standard and Juniper Networks enterprise-specific MIBs have been added to extend SNMP support to spanning-tree protocols:

• RFC 4188, Definitions of Managed Objects for Bridges—Supports 802.1d STP (1998) only.
• RFC 4318, Definitions of Managed Objects for Bridges with Rapid Spanning Tree Protocol—Supports 802.1w and 802.1t extensions for RSTP.
• Juniper Networks Enterprise-Specific Multiple Instance Virtual Switch MIB (mib-jnx-mimstp.txt)—Supports 802.1s (2002) for MSTP.

The Juniper Networks enterprise-specific Multiple Instance Multiple Spanning Tree protocol (MIMSTP) management information base (MIB) (mib-jnx-mimstp.txt) provides information on multiple spanning-tree instances, that is routing instances of type Virtual Switch/Layer 2 control, also known as virtual contexts and associated VLANs.

For a downloadable version of this MIB, see www.juniper.net/techpubs/software/junos/junos94/swconfig-net-mgmt/mib-jnx-mimstp.txt.

This chapter discusses the following topics:

• jnxMIDot1sJuniperMstTable
• Juniper Networks MSTI Bridge Table
• jnxMIMstVlanInstanceMappingTable
• jnxMIMstCistPortTable
• jnxMIMstMstiPortTable
• Juniper Networks Enterprise-Specific MIMSTP Traps

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