No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Preventing MAC Address Flapping Between Interfaces with the Same Priority

Preventing MAC Address Flapping Between Interfaces with the Same Priority

Context

Preventing MAC address flapping between interfaces with the same priority can improve network security.

If the switch is configured to prevent MAC address flapping between interfaces with the same priority, the following problem may occur: If the network device (such as a server) connected to an interface of switch is powered off and the same MAC address is learned on another interface, the switch cannot learn the correct MAC address on the original interface after the network device is powered on.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    undo mac-learning priority priority-id allow-flapping

    The device is configured to prevent MAC address flapping between interfaces with the same priority.

    By default, the device allows MAC address flapping between interfaces with the same priority.

  3. Run:

    mac-learning priority flapping-defend action discard

    The switch is configured to discard packets when the switch is configured to prohibit MAC address flapping.

    By default, the action is forward when the switch is configured to prohibit MAC address flapping.

Checking the Configuration

Run the display current-configuration command to check whether MAC address flapping is allowed between interfaces with the same priority.

Translation
Download
Updated: 2019-08-21

Document ID: EDOC1000142081

Views: 275147

Downloads: 421

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next