Configuring Basic Ospf Functions; Establishing The Configuration Task - Huawei S6700 Series Configuration Manual

S6700 Series Ethernet Switches
Configuration Guide - IP Routing
OSPF supports dynamically establishing or deleting a BFD session on broadcast, P2P, P2MP,
and NBMA links.
Configure BFD according to the actual network environment. If time parameters are set
incorrectly, network flapping occurs.
GTSM
The Generalized TTL Security Mechanism (GTSM) refers to the generic TTL security protection
mechanism. GTSM protects services of the upper layer over the IP layer by checking whether
the TTL value in the IP header is in a pre-defined range. In applications, GTSM is designed to
protect the TCP/IP-based control plane (like routing protocols) from CPU-utilization attacks,
such as CPU overload attacks.

4.3 Configuring Basic OSPF Functions

This section describes how to configure basic OSPF functions.

4.3.1 Establishing the Configuration Task

Before configuring basic OSPF functions, enable OSPF, specify the OSPF process and area, and
establish OSPF neighbor relationships.
Applicable Environment
When OSPF is configured on multiple switches in the same area, most configuration data, such
as the timer, filter, and aggregation, must be planned uniformly in the area. Incorrect
configurations may cause neighboring switches to fail to send messages to each other or even
causing routing information congestion and self-loops.
The OSPF-relevant commands that are configured in the interface view take effect regardless
of whether OSPF is enabled. After OSPF is disabled, the OSPF-relevant commands also exist
on interfaces.
Pre-configuration Tasks
Before configuring basic OSPF functions, complete the following tasks:
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Data Preparation
To configure basic OSPF functions, you need the following data.
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Issue 01 (2012-03-15)
of the neighbor is not Full. This does not meet the requirements of establishing a BFD
session. OSPF then uses RM to notify the BFD module of deleting the BFD session.
Configuring a link layer protocol
Configuring IP addresses for interfaces to ensure that neighboring switches are reachable
at the network layer
Data
Router ID
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