User manual D-LINK DES-3216

[. . . ] A1 (December, 1998) 6DES3216. . 02 Printed In Taiwan RECYCLABLE D-Link Limited Warranty Hardware: D-Link warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following periods measured from date of purchase from D-Link or its authorized Reseller: Product Type Complete Products Spare parts and spare kits Warranty Period One year 90 days Your dealer, or your nearest D-Link office, can advise whether a longer period of warranty applies to your purchase, and if so, can provide you a separate certificate of supplemental warranty. The one-year period of warranty on complete products (or such longer period of warranty as may be offered as to your purchase) applies on condition that the product's Registration Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card. Failing such timely registration of purchase, the warranty period shall be limited to ninety (90) days. If the product proves defective within the applicable warranty period, D-Link will provide repair or replacement of the product. D-Link shall have the sole discretion whether to repair or replace, and replacement product may be new or reconditioned. [. . . ] Bad packets created by collisions on the network or damaged packets are filtered out. Always use Store and Forward when some devices on the network run at 10 Mbps and others run at 100 Mbps. Disadvantages of Store and Forward Store and Forward requires more time because it receives the whole packet before sending it out. For example, 1500 Managing the DES-3216 26 10/100 Auto Negotiation Switch User's Guide byte packets are delayed by 1200 microseconds in a Store and Forward device versus 60 microseconds in a Cut-Through device. Store and Forward requires more memory because the DES-3216 must store the packet before sending it out. Advantages of Cut-Through Cut-Through is faster because the packet is sent as soon as the first 128 bytes are received. Cut-Through requires less memory since the DES-3216 only reads the address but does not store the entire message. Disadvantages of Cut-Through Bad packets are perpetuated, taking up bandwidth. Cut-Through can not be used on networks that use both Ethernet and Fast Ethernet. Follow these steps to change the default setting from Store and Forward to Cut-Through: 1. Select Save and press Enter. Managing the DES-3216 27 10/100 Auto Negotiation Switch User's Guide Software Update Menu The Software Update menu, displayed in Figure 14, is used to upgrade the software on the DES-3216. Figure 14: Software Update Follow these steps to upload new software: 1. Load the new software to the hard drive of the PC you will be downloading from. Connect the DES-3216 and the PC with the software on it with the RS-232 cable provided. Select Transfer on the HyperTerminal menu bar at the top of the screen. Managing the DES-3216 28 10/100 Auto Negotiation Switch User's Guide Figure 15: Software Update Transfer Figure 16: Send File 5. You must specify the path from the DES-3216 to the file the firmware is in. Use XMODEM to transfer the file. Managing the DES-3216 29 10/100 Auto Negotiation Switch User's Guide 6. The panel, displayed in Figure 17, will display statistics about the transfer, including the elapsed time and the time remaining. Figure 17: File Transfer through Xmodem When the transfer is complete you will see the panel in Figure 18. The DES-3216 will reset itself automatically and you will have to log in again. Figure 18: Message Displayed as EEPROM is Being Written Managing the DES-3216 30 10/100 Auto Negotiation Switch User's Guide User Account Management The User Account Management panels allow you to add users, delete users and modify user access rights. Press Enter. User Account Change Menu The User Account Change menu, displayed in Figure 19, allows you to add users, delete users, and modify user rights. Figure 19: User Account Change menu Follow these steps to select a menu option: 1. Press Enter. Create New User The Create New User panel, displayed in Figure 20, allows you to add new users. You can have a total of three users on the DES-3216. Managing the DES-3216 31 10/100 Auto Negotiation Switch User's Guide Figure 20: Create New User User Name Enter the user's name in this field. You can enter a maximum of eight characters. Password Enter the user's password in this field. You can enter a maximum of eight characters. Confirm Password Reenter the user's password to confirm it in this field. Access Level There are two access levels available on the DES-3216: Super User and General User. They can add and delete users, change the configuration of the DES-3216 and perform all management functions. They can look at the panels but they cannot make any changes to existing settings or configurations. [. . . ] 35 Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]