F3215-HP Load Balancing Module Network Management Configuration Guide-6PW101

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Configuring OSPF

The term "router" in this document refers to both routers and LB modules.

Open Shortest Path First (OSPF) is a link state IGP developed by the OSPF working group of the IETF.

OSPF version 2 is used for IPv4. Unless otherwise stated, OSPF refers to OSPFv2 throughout this chapter.

OSPF has the following features:

• Wide scope—Supports various network sizes and up to several hundred routers in an OSPF routing

domain.

• Fast convergence—Advertises routing updates instantly upon network topology changes.

• Loop free—Computes routes with the SPF algorithm to avoid routing loops.

• Area-based network partition—Splits an AS into multiple areas to facilitate management. This

feature reduces the LSDB size on routers to save memory and CPU resources, and reduces route

updates transmitted between areas to save bandwidth.

• ECMP routing—Supports multiple equal-cost routes to a destination.

• Routing hierarchy—Supports a four-level routing hierarchy that prioritizes routes into intra-area,

inter-area, external Type-1, and external Type-2 routes.

• Authentication—Supports area- and interface-based packet authentication to ensure the security of

packet exchange.

• Support for multicasting—Multicasts protocol packets on some types of links to avoid impacting

other devices.

Configuring OSPF in the Web interface

Recommended configuration procedure

Before the configuration, you must make proper network layouts. Incorrect configurations may result in

transmission problems between neighboring routers, routing information congestion, or routing loops.

The Web interface supports configuring only the basic OSPF functions. The advanced functions, such as

tuning and optimizing networks, are supported at the command line interface (CLI).

Ste

Remarks

1. Configuring OSPF globally

Required.

Enable OSPF, and configure OSPF to redistribute

static routes.

NOTE:

OSPF multiprocess is not supported in the Web

interface. Enabling OSPF creates process 1, and

disabling OSPF removes process 1.