Configuring Local Mac Swap Loopback; Establishing The Configuration Task - Huawei Quidway S3700 Series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
the switch swaps 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 this interface. 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 9-2 Remote MAC swap loopback test
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9.3 Configuring Local MAC Swap Loopback

By configuring local MAC swap loopback, you can test connectivity and performance of a switch
and the Ethernet network connected to the switch.

9.3.1 Establishing the Configuration Task

Before configuring local MAC swap loopback, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the data required for the
configuration. This can help you complete the configuration task quickly and accurately.
Applicable Environment
Before using an S3700 to provide services for users, perform a local MAC swap loopback test
on the S3700 to check whether the S3700 can provide services properly. This test checks
connectivity and QoS CAR of the network between an S3700 downlink interface and a remote
device. The local MAC swap loopback test can also check whether VLAN mapping and VLAN
stacking are configured successfully on the downlink interface.
A local MAC swap loopback test checks connectivity and performance of the network between
a tester and a tested switch, and performance of the tested switch.
Pre-configuration Tasks
Before configuring local MAC swap loopback, complete the following tasks:
l
Issue 01 (2011-10-26)
SwitchA
Creating a VLAN and adding the interface where you want to perform the local MAC swap
loopback test to the VLAN
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Tester
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9 MAC Swap Loopback Configuration
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