ZyXEL ZyWALL ATP700 User Guide - Page 467
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CHAPTER 22 BWM (Bandwidth Management) 22.1 Overview Bandwidth management provides a convenient way to manage the use of various services on the network. It manages general protocols (for example, HTTP and FTP) and applies traffic prioritization to enhance the performance of delay-sensitive applications like voice and video. 22.1.1 What You Can Do in this Chapter Use the BWM screens (see Section 22.2 on page 471) to control bandwidth for services passing through the Zyxel Device, and to identify the conditions that define the bandwidth control. 22.1.2 What You Need to Know When you allow a service, you can restrict the bandwidth it uses. It controls TCP and UDP traffic. Use policy routes to manage other types of traffic (like ICMP). Note: Bandwidth management in policy routes has priority over TCP and UDP traffic policies. If you want to use a service, make sure both the security policy allow the service's packets to go through the Zyxel Device. Note: The Zyxel Device checks security policies before it checks bandwidth management rules for traffic going through the Zyxel Device. Bandwidth management examines every TCP and UDP connection passing through the Zyxel Device. Then, you can specify, by port, whether or not the Zyxel Device continues to route the connection. BWM Type The Zyxel Device supports three types of bandwidth management: Shared, Per user and Per-Source-IP. The Shared BWM type is selected by default in a bandwidth management rule. All matched traffic shares the bandwidth configured in the rule. If the BWM type is set to Per user in a rule, each user that matches the rule can use up to the configured bandwidth by his/her own. Select the Per-Source-IP type when you want to set the maximum bandwidth for traffic from an individual source IP address. ZyWALL ATP Series User's Guide 467
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