Dell Force10 S4810P S4810 Configuration Guide, FTOS 8.3.10.1 - Page 732

www.dell.com | support.dell.com • The Z9000 supports up to 16 OSPFv2 processes. Each OSPFv2 process has a unique process ID and must have an associated Router ID. There must be an equal number of interfaces must be in Layer-3 mode for the number of processes created. For example, if 5 OSPFv2 processes are created on a system, there must be at least 5 interfaces assigned in Layer-3 mode. Each OSPFv2 process is independent. If one process loses adjacency, the other processes continue to function. Processing SNMP and Sending SNMP Traps Though there are may be several OSPFv2 processes, only one process can process SNMP requests and send SNMP traps. The mib-binding command identifies one of the OSPVFv2 processes as the process responsible for SNMP management. If themib-binding command is not specified, the first OSPFv2 process created manages the SNMP processes and traps. RFC-2328 Compliant OSPF Flooding In OSPF, flooding is the most resource-consuming task. The flooding algorithm described in RFC 2328 requires that OSPF flood LSAs on all interfaces, as governed by LSA's flooding scope. (Refer to Section 13 of the RFC.) hen multiple direct links connect two routers, the RFC 2328 flooding algorithm generates significant redundant information across all links. By default, FTOS implements an enhanced flooding procedure which dynamically and intelligently detects when to optimize flooding. Wherever possible, the OSPF task attempts to reduce flooding overhead by selectively flooding on a subset of the interfaces between two routers. If RFC 2328 flooding behavior is required, enable it by using the command flood-2328 in ROUTER OSPF mode. When enabled, this command configures FTOS to flood LSAs on all interfaces. Confirm RFC 2328 flooding behavior by using the command debug ip ospf packet and look for output similar to the following: 732 | Open Shortest Path First (OSPFv2 and OSPFv3)