Cisco Cisco IOS Software Release 12.2(14)S
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Cisco IOS Release 12.2(14)S
MPLS VPN—SNMP MIB Support
This document describes the Simple Network Management Protocol (SNMP) agent support in Cisco IOS
for Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) management, as
implemented in the draft MPLS/BGP Virtual Private Network Management Information Base Using
SMIv2 (draft-ietf-ppvpn-mpls-vpn-mib-03.txt).
for Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) management, as
implemented in the draft MPLS/BGP Virtual Private Network Management Information Base Using
SMIv2 (draft-ietf-ppvpn-mpls-vpn-mib-03.txt).
The MPLS VPN technology allows service providers to offer intranet and extranet VPN services that
directly connect their customers' remote offices to a public network with the same security and service
levels that a private network offers. Each VPN is associated with one or more VPN routing/forwarding
instances (VRFs). A VRF is created for each VPN defined on a router and contains most of the
information needed to manage and monitor MPLS VPNs: an IP routing table, a derived Cisco Express
Forwarding (CEF) table, a set of interfaces that use this forwarding table, and a set of rules and routing
protocol parameters that control the information that is included into the routing table. The
Provider-Provisioned VPN (PPVPN)-MPLS-VPN MIB provides access to this VRF information, as well
as interfaces included in the VRF, and other configuration and monitoring information.
directly connect their customers' remote offices to a public network with the same security and service
levels that a private network offers. Each VPN is associated with one or more VPN routing/forwarding
instances (VRFs). A VRF is created for each VPN defined on a router and contains most of the
information needed to manage and monitor MPLS VPNs: an IP routing table, a derived Cisco Express
Forwarding (CEF) table, a set of interfaces that use this forwarding table, and a set of rules and routing
protocol parameters that control the information that is included into the routing table. The
Provider-Provisioned VPN (PPVPN)-MPLS-VPN MIB provides access to this VRF information, as well
as interfaces included in the VRF, and other configuration and monitoring information.
The PPVPN-MPLS-VPN MIB provides the following benefits:
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A standards-based SNMP interface for retrieving information about critical MPLS VPN events.
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VRF information to assist in the management and monitoring of MPLS VPNs.
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Information, in conjunction with the Interfaces MIB, about interfaces assigned to VRFs.
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Performance statistics for all VRFs on a router.
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The generation and queuing of notifications that call attention to major changes in the operational
status of MPLS VPN enabled interfaces; the forwarding of notification messages to a designated
NMS for evaluation and action by network administrators.
status of MPLS VPN enabled interfaces; the forwarding of notification messages to a designated
NMS for evaluation and action by network administrators.
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Advanced warning when VPN routing tables are approaching or exceed their capacity.
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Warnings about the reception of illegal labels on a VRF enabled interface. Such receptions may
indicate misconfiguration or an attempt to violate security.
indicate misconfiguration or an attempt to violate security.