IPv6 dynamic routing using OMPROUTE

For IPv6, OMPROUTE implements the IPv6 RIP protocol described in RFC 2080 (RIPng for IPv6) and the IPv6 OSPF protocol described in RFC 2740 (OSPF for IPv6). It provides an alternative to the static TCP/IP gateway definitions. The MVS™ host running with OMPROUTE becomes an active OSPF or RIP router in an IP network. Either or both of these routing protocols can be used to dynamically maintain the host IPv6 routing table. For example, OMPROUTE can detect when a route is created, is temporarily unavailable, or if a more efficient route exists. If both IPv6 OSPF and IPv6 RIP protocols are used simultaneously, IPv6 OSPF routes will be preferred over IPv6 RIP routes to the same destination.

Tip: You can use the IBM® Health Checker for z/OS® to check whether the total number of indirect routes in a TCP/IP stack routing table exceeds a maximum threshold. When this threshold is exceeded, OMPROUTE and the TCP/IP stack can experience high CPU consumption from routing changes. For more information about IBM Health Checker for z/OS, see z/OS Communications Server: IP Diagnosis Guide and IBM Health Checker for z/OS: User's Guide.