7.10 Configuring MAC Address Flapping Detection
This section describes how to configure MAC address flapping detection.
7.10.1 Establishing the Configuration Task
Before configuring MAC address flapping detection, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the data required for the
configuration. This will help you complete the configuration task quickly and accurately.
Applicable Environment
As shown in Figure 7-5, a loop occurs on the network, which will cause MAC address flapping.
After MAC address flapping detection is configured in a VLAN, the Switch checks all MAC
addresses in the VLAN to detect MAC address flapping.
The Switch checks whether a MAC address moves from one interface to another in the VLAN.
If MAC address flapping occurs, it performs the configured action, for example, blocks the
interface to remove the loop. This function reduces MAC address flapping caused by loops and
broadcast storms. You can also configure the Switch only to send trap messages to the network
management system when the S7700 detects MAC address flapping.
Figure 7-5 Networking diagram for MAC address flapping detection
Pre-configuration Tasks
None.
Data Preparation
To configure MAC flapping detection, you need the following data.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 7 MAC Address Table Configuration
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