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 - Reliability

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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).
MAC Swap Loopback Features Supported by the Switch

MAC Swap Loopback Features Supported by the Switch

Local MAC Swap Loopback Test

A local MAC swap loopback test checks connectivity and performance of the network between a tester and a tested switch, as well as performance of the tested switch. In Figure 7-1, Ethernet frames sent by a tester traverse an Ethernet network and reach the tested switch (SwitchB). After the tested switch receives the Ethernet frames, it forwards them to the interface where local MAC swap loopback is configured. The tested switch swaps the source and destination MAC addresses of all Ethernet frames that match the local MAC swap loopback configuration and sends the Ethernet frames back to the tester through the interface where local MAC swap loopback is configured. The tester then analyzes network performance based on Ethernet frames sent from the tested switch.

When a local MAC swap test is performed on an interface, services on the interface are interrupted, but services on other interfaces are not affected. If a large number of test packets are sent, test packets occupy bandwidth of other services on the interface that sends test packets back to the tester.

Figure 7-1  Local MAC swap loopback test

Remote MAC Swap Loopback Test

A remote MAC swap loopback test checks connectivity and performance of the network between a tester and a tested switch but does not check performance of the tested switch. In Figure 7-2, Ethernet frames sent by a tester traverse an Ethernet network and reach the tested switch (SwitchB). After the tested switch receives the Ethernet frames, the switch swaps the source and destination MAC addresses of all Ethernet frames that match the remote MAC swap loopback configuration and sends the Ethernet frames back to the tester through the interface where remote MAC swap loopback is configured. The tester then analyzes network performance based on Ethernet frames sent from the tested switch.

A remote MAC swap loopback test modifies only Ethernet frames matching the MAC swap loopback configuration on an interface, and other Ethernet frames can still be forwarded on the interface. However, if a large number of test packets are sent, test packets occupy bandwidth of other services on the interface.

Figure 7-2  Remote MAC swap loopback test
Translation
Download
Updated: 2019-04-20

Document ID: EDOC1000142090

Views: 83659

Downloads: 104

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