User manual LINKSYS SRW224P

[. . . ] ® A Division of Cisco Systems, Inc. 24-Port 10/100 + 2-Port Gigabit Switch with WebView and Power over Ethernet WIRED User Guide Model No. SRW224P 24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. Copyright © 2005 Cisco Systems, Inc. Other brands and product names are trademarks or registered trademarks of their respective holders. [. . . ] Granularity is a global setting that applies to Fast Ethernet or Gigabit Ethernet interfaces. Use the drop-down menus to change the rate limit for fast ethernet and/or gigabit granularity, click submit. Set the Input Rate Limit Status or Output Rate Limit Status, then set the rate limit for the individual interfaces, and click Apply. To configure input rate limit for each port or lag, click Port Conf or Trunk Conf in the Input row of the table respectively. To configure output rate limit for each port or lag, click Port Conf or Trunk Conf in the Output row of the table respectively. Figure 5-31: QoS - Rate Limit Rate Limit Configuration To configure Port Input Rate Limit, click the Enable checkbox and then set the rate limit level in the textfield provided. Port Rate Output Limit is configured the same way on the Port Output Rate Limit Configuration screen. If a port is assigned as a lag member then the rate limit of that port cannot be set in the port configuration screen. Truck Rate Limit is configured the same way as port rate limit using the trunk Input and output screens. NOTE: When the rate limit granularity is set to a low value (for 10/100 ports, less than 512 Kbps), the maximum bandwidth available on ports is restricted to a value that is "256 x granularity. " This restriction also applies to ports with rate limiting disabled. 49 Chapter 5: Configuring the Switch through the Web Utility QoS 24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet DiffServ The commands described in this section are used to configure Quality of Service (QoS) classification criteria and service policies. Differentiated Services (DiffServ) provides policy-based management mechanisms used for prioritizing network resources to meet the requirements of specific traffic types on a per hop basis. Each packet is classified upon entry into the network based on access lists, IP Precedence, DSCP values, or VLAN lists. Using access lists allows you select traffic based on Layer 2, Layer 3, or Layer 4 information contained in each packet. Based on configured network policies, different kinds of traffic can be marked for different kinds of forwarding. All switches or routers that access the Internet rely on class information to provide the same forwarding treatment to packets in the same class. Class information can be assigned by end hosts, or switches or routers along the path. Priority can then be assigned based on a general policy, or a detailed examination of the packet. However, note that detailed examination of packets should take place close to the network edge so that core switches and routers are not overloaded. Switches and routers along the path can use class information to prioritize the resources allocated to different traffic classes. The manner in which an individual device handles traffic in the DiffServ architecture is called perhop behavior. All devices along a path should be configured in a consistent manner to construct a consistent endto-end QoS solution. The DiffServ tab includes links to the following screens. [. . . ] Caution: The PoE (Power over Ethernet), which is to be interconnected with other equipment that must be contained within the same building including the interconnected equipmentís associated LAN connections. Note: When selecting a fiber SFP device, considering safety, please make sure that it can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser Class 1 SFP transceiver. Hinweis: Bei der Wahl eines Glasfasertransceivers muß für die Beurteilung der Gesamtsicherheit beachtet werden, das die maximale Umgebungstemperatur des Transceivers für den Betrieb nicht niedriger ist als die für dieses Produkts. [. . . ]