Web OS 10.0 Application GuideChapter 17: Bandwidth Management n 449212777-A, February 2002Frame DiscardWhen packets in a contract queue have not yet been sent and the buffer size set for the queue isfull, any new frames attempting to be placed in the queue will be discarded.URL-Based Bandwidth ManagementURL-based BWM allows the network administrator or Web site manager to control bandwidthbased on URLs, HTTP headers, or cookies.All three types of BWM are accomplished by following the configuration guidelines on con-tent switching described in Chapter 15, “Content Intelligent Switching.” You would also needto assign a contract to each defined string, where the string is contained in a URL, an HTTPheader, or a cookie.BWM based on URLs gives Web site managers the following capabilities: Ability to allocate bandwidth based on the type of requestThe switch allocates bandwidth based on certain strings in the incoming URL request. Forexample, as shown in Figure 17-4, if a Web site has 10Mbs of bandwidth, the site managercan allocate 1 Mbs of bandwidth for static HTML content, 3Mbs of bandwidth for graphiccontent and 4Mbs of bandwidth for dynamic transactions, such as URLs with cgi-binrequests and .asp requests. Ability to prioritize transactions or applicationsBy allocating bandwidth, the Web switch can guarantee that certain applications and trans-actions get better response time. Ability to allocate a certain amount of bandwidth for requests that can be cachedAs shown in Figure 17-5 on page 450, users will be able to allocate a certain percentage ofbandwidth for Web cache requests by using the URL parsing and bandwidth managementfeature.
