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Configuration Guide - Network Management and Monitoring

S1720, S2700, S5700, and S6720 V200R011C10

This document provides the configurations of network management and monitoring features supported by the product, including SNMP, RMON and RMON2, LLDP, Performance Management, iPCA, NQA, Service Diagnosis, Mirroring, Packet Capture, NetStream, sFlow, TWAMP Light, and NETCONF.

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MAC Address Mirroring

MAC Address Mirroring

In MAC address mirroring, packets matching a specified source or destination MAC address in a VLAN are mirrored to an observing port. MAC address mirroring is more accurate than other mirroring modes, allowing you to monitor packets of a specified device on the network.

Currently, when MAC address mirroring is used on the Huawei S series fixed switches, only the packets that are received by the active ports in a VLAN and match a specified source or destination MAC address can be copied to an observing port, as shown in Figure 9-6.

Figure 9-6  MAC address mirroring

There are two types of MAC address mirroring: local MAC address mirroring and remote MAC address mirroring. The type used depends on the location of monitoring devices. In remote MAC address mirroring, hosts cannot reside on the VLAN of the intermediate Layer 2 network through which mirrored packets are forwarded from an observing port to a monitoring device.

Updated: 2020-02-06

Document ID: EDOC1000178174

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