Nortel Networks NN46110-602 manual RFC 1724-RIP Version 2 MIB Extension, RFC 2667-IP Tunnel MIB

132 Appendix A MIB support

RFC 1724—RIP Version 2 MIB Extension

The VPN Router supports RFC 1724, RIP Version 2 MIB Extension. As stated in the introduction to the RFC, the RFC “defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/ IP-based internets. In particular, it defines the objects for managing RIP Version 2.”

RFC 1213—Network Management of TCP/IP-Based Internets

MIB

The VPN Router supports RFC 1213, Management Information Base for Network Management of TCP/IP-based Internets: MIB II. This RFC provides the architecture and system for managing TCP/IP-based internets. With the exception of the EGP Group (Section 6.10) and the Transmission Group (Section 6.11), the VPN Router provides full support for the RFC.

SNMP interface index (IfIndex) numbers, as defined in RFC 1213, are numbers that third-party network management systems (NMS) rely on to monitor and gather statistics for devices through SNMP. The physical and virtual interfaces on the VPN Router are assigned these locally significant numbers and the NMS can use them to associate statistics with the devices.

Prior to Release 7.0, an IfIndex number was dynamically assigned to a branch office tunnel (BOT) when the BOT came up. Only up tunnels were reported. This enhancement does the following:

•assigns a static number to each branch office tunnel

•reports all branch office tunnels, whether they are up or down, in an SNMP query

RFC 2667—IP Tunnel MIB

The VPN Router supports RFC 2667, IP Tunnel MIB. As stated in the introduction to the RFC, it “describes a Management Information Base (MIB) used for managing tunnels of any type over IPv4 networks, including GRE [16,17], IP-in-IP [18], Minimal Encapsulation [19], L2TP [20], PPTP [21], L2F [25], UDP (e.g., [26]), ATMP [22], and IPv6-in-IPv4 [27] tunnels.”

NN46110-602