Fast Convergence (Ospfv2, Ipv4 Only); Multi-Process Ospfv2 (Ipv4 Only) - Dell C9000 Series Networking Configuration Manual

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Table of Contents

Network (type 2)

Network Summary (type 3)

AS Boundary (type 4)

External LSA (type 7)

Link LSA, OSPFv3 only (type 8)

Opaque Link-Local (type 9)

Grace LSA, OSPFv3 only (type 11)

Fast Convergence (OSPFv2, IPv4 Only)

Fast convergence allows you to define the speeds at which LSAs are originated and accepted, and reduce

OSPFv2 end-to-end convergence time.

The system allows you to accept and originate LSAs as soon as they are available to speed up route

information propagation.

The faster the convergence, the more frequent the route calculations and updates. This impacts

CPU utilization and may impact adjacency stability in larger topologies.

Multi-process OSPF is supported only on OSPFv2 with IPv4 on the switch. Up to 32 OSPFv2 processes are

Multi-process OSPF allows multiple OSPFv2 processes on a single router. Multiple OSPFv2 processes allow

for isolating routing domains, supporting multiple route policies and priorities in different domains, and

creating smaller domains for easier management.

Each OSPFv2 process has a unique process ID and must have an associated router ID. There must be an equal

number of interfaces and must be in Layer-3 mode for the number of processes created. For example, if you

create five OSPFv2 processes on a system, there must be at least five interfaces assigned in Layer 3 mode.

Each OSPFv2 process is independent. If one process loses adjacency, the other processes continue to

Processing SNMP and Sending SNMP Traps

Though there are may be several OSPFv2 processes, only one process can process simple network

management protocol (SNMP) requests and send SNMP traps.

The mib-binding command identifies one of the OSPVFv2 processes as the process responsible for SNMP

management. If you do not specify the mib-binding command, the first OSPFv2 process created manages

the SNMP processes and traps.

Open Shortest Path First (OSPFv2 and OSPFv3)