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Configuration Guide - QoS
CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of QoS functions, including MQC, priority mapping, traffic policing, traffic shaping, interface-based rate limiting, congestion avoidance, congestion management, packet filtering, redirection, traffic statistics, and ACL-based simplified traffic policy.

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Application Scenarios for Packet Filtering

Application Scenarios for Packet Filtering

Packet filtering allows the device to only permit trusted packets to pass through. The device discards any untrusted packets. This function improves network security and allows flexible network planning.

Figure 7-1 shows an example of a campus network that is using packet filtering. In this case, packet filtering allows the PC in the multimedia room to only access the FTP server. The PC in the teacher's office, however, can access both the FTP server and the web server.

Figure 7-1 Networking of packet filtering

Updated: 2019-03-21

Document ID: EDOC1000166605

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