User manual HP PROCURVE 1810-48G J9660A

[. . . ] HP 1810 Switches Management and Configuration Guide HP 1810 Switches September 2012 Management and Configuration Guide © Copyright 2012 Hewlett-Packard Development Company, L. P. The information contained herein is subject to change without notice. This document contains proprietary information, which is protected by copyright. No part of this document may be photocopied, reproduced, or translated into another language without the prior written consent of Hewlett-Packard. Disclaimer The information contained in this document is subject to change without notice. [. . . ] To display the Green Features configuration page, click Switching > Green Features in the navigation pane. Green Features 4-6 Switching Pages Green Features Table 4-5. Green Features Configuration Fields Field Description Port Energy Saving Configuration Auto Port PowerDown Low-Traffic Idle (EEE) Enable power save mode when there is no link. EEE (Energy Efficient Ethernet) is designed to save power by turning off network ports that are not passing traffic. EEE works for ports in auto-negotiation mode, where the port is negotiated to either 100 Mbps Full Duplex or 1 Gbps (1000 Mbps) Full Duplex. This feature is disabled by default. Cable Energy Saving Configuration Cable Length Detect Enable port power consumption based upon the cable length such that shorter cables use less power. This feature is disabled by default. LED intensity Configuration LED Intensity Intensity Level Start Time Duration Recur Daily Enable LED intensity control globally on all ports. Valid values are High, Medium, Low, and Off. Specifies the time of day when the configured LED intensity level is activated. Valid values are any hour or half-hour from midnight (12:00 AM) through 11:30 PM. Specifies the number of hours the configured LED Intensity level is in effect. Valid values are in the range of 1 hour to 24 hours. Specifies whether the LED intensity settings are in effect one time only, or daily. Set to Yes to repeat the configured LED Intensity level daily. Default value is Yes. Click Apply to save any changes for the current boot session; the changes take effect immediately. 4-7 Switching Pages Loop Protection Loop Protection Loops in a network can consume switch resources and degrade performance. Detecting loops manually can be very cumbersome and time consuming. The HP 1810 series switch software provides an automatic Loop Protection feature. Loop Protection may be enabled or disabled globally and on a port-by-port basis. When enabled globally, the software sends loop protection packets to a reserved layer 2 multicast destination address on all the ports on which the feature is enabled. Transmission of the packet can be disabled selectively on certain ports, even when Loop Protection is enabled. If this multicast packet comes back to the switch with any of the ports’ MAC addresses as the source, the switch determines that a loop has occurred. The port that received the loop protection packet from the switch can be shut down for a configured period, or a log entry can be made. [. . . ] Click Diagnostics > Reboot Switch, and then click Reboot Switch to complete the update. Wait for the switch to reboot and display the login page. 10-6 Maintenance Pages Password Manager Password Manager Use the Password Manager to change the password used to access the Web interface. To display the Password Manager page, click the Maintenance > Password Manager. Password Manager Page Note There is no default password. Passwords must be at least 8 characters but no more than 64 characters long. [. . . ]