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Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R011C10

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.

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Summary of OSPF Configuration Tasks

Summary of OSPF Configuration Tasks

This section provides an OSPF configuration summary. Perform configurations according to your particular requirements.

Table 5-15 describes OSPF configuration tasks.

Table 5-15  OSPF configuration tasks




Configuring Basic OSPF Functions

Basic OSPF functions must be configured before other OSPF functions can be implemented.

Configuring Basic OSPF Functions

Configuring Session Parameters for OSPF Neighbor Relationships

Configuring OSPF Attributes on Different Types of Networks

Configuring OSPF Areas

  • In a stub area, an area border router (ABR) does not transmit autonomous system (AS) external routes, reducing route entries on the ABR as well as the amount of transmitted routing information.

  • An NSSA is a special type of OSPF area. Similar to a stub area, an NSSA does not transmit external routes from other areas. Different from a stub area, an NSSA imports AS external routes and transmits them in the entire AS (a stub area does not import AS external routes).

Configuring OSPF Stub Areas

Configuring an OSPF NSSA

Configuring the OSPF local multicast topology (Local-MT)

OSPF Local-MT can be enabled to allow TE tunnel spanned devices to generate multicast forwarding entries.

Configuring Local MT

Adjusting OSPF Route Selection

To meet network requirements, OSPF parameters can be adjusted to control OSPF routing.

Adjusting OSPF Route Selection

Controlling OSPF Routing Information

To meet network requirements, OSPF parameters can be configured to control advertisement and receipt of OSPF routes.

Controlling OSPF Routing Information

Controlling the convergence speed of OSPF routes

The speed of OSPF route convergence can be increased to enable OSPF to quickly detect changes in the network topology, or it can be reduced to decrease the impact of route flappings on OSPF networks and relieve loads on devices.

Configuring OSPF Fast Convergence

Improving the Reliability of an OSPF Network

  • After BFD for OSPF is configured in a process or on an interface, the link status is rapidly detected. This allows fault detection to complete in milliseconds, speeding up OSPF convergence.
  • To avoid traffic interruption and route flapping caused by master/slave switchovers, configure OSPF GR.

Configuring BFD for OSPF

Configuring OSPF GR

Improving the Stability of an OSPF Network

OSPF network stability can be improved to reduce route flappings on the OSPF network. This enables the device to work in a normal state for an extended period of time.

Improving the Stability of an OSPF Network

Improving the Security of an OSPF Network

In an OSPF network demanding high security, OSPF authentication and GTSM can be configured to improve the network security.

Improving the Security of an OSPF Network

Updated: 2019-10-18

Document ID: EDOC1000178324

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