User manual NETGEAR GS748T

[. . . ] NETGEAR, the Netgear logo, The Gear Guy and Everybody’s connecting are trademarks of Netgear, Inc. In the United States and/or other countries. Other brand and product names are trademarks of their respective holders. Information is subject to change without notice. [. . . ] Fastlink mode solves this problem by setting the port directly to forwarding mode, thus allowing any server access request to be forwarded. Fastlink mode can cause temporary loops in your network, but the STP will eliminate them. Bridge Priority: Priority setting of this switch in the Spanning Tree. Bridge Max Age: Amount of time before a configuration message is discarded by the system. Bridge Hello Time: Interval between configuration messages sent by the Spanning Tree algorithm. Bridge Forward Delay: Amount of time system spends in 'learning' and 'listening' states. Path Cost: The switch uses this to determine which port is the forwarding port. All other factors equal, the path with the lowest cost to the root bridge will be the active path. Path Priority: STP bases on this to determine the port to use for forwarding. The port with the lowest number has the highest priority. €¢ • • • • • Switch> Advanced> SNMP SNMP page allows you to limit the IP address which can access the MIB of the switch and which the switch will send trap to. The switch will only respond to requests from computers with the IP address in the list. You can also select the traps which the switch will send to the hosts in the following trap events. The setting of a host will not be active until it is set to “Enable” in the Admin field. trap Events : • • • Device bootup - The switch generates an SNMP trap when it reboots. Authentication fail - The switch generates an SNMP trap when a host tries to gain access to the switch but the host's IP is not in the SNMP host table. Link Up/Down - The switch generates an SNMP trap when one of its ports changes its link status. 4-12 July 2005 Web-Based Management Interface Smart Switch Series Software Manual Firmware Menu There are 2 options available: • • Configuration Backup Factory Reset Firmware> Configuration Backup Page You can backup the system and switch settings to your workstation. This can help you to reconfigure the switch quickly if you have to re-set to factory defaults. Additionally, if you want to try out different configurations on the switch, this feature will enable you to quickly return to a previous configuration. If you own several switches and you want them to have the same configuration, you can use this feature to duplicate the settings to each switch. Saving your Backup file: • • • • • Click Backup to store the current setting to a file in your PC. [. . . ] Factors that affect the return loss are: The number of transition points, as there is a connection via an RJ-45 to another connector, a patch panel, or device at each transition point. Removing the jacket that surrounds the four pairs of twisted cable. It is highly recommended that, when RJ-45 connections are made, this is minimized to 1-1/4 inch (32 mm). Untwisting any pair of the twisted-pair cabling. [. . . ]