D-Link DGS-1520 User Manual - Page 108

DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide Parameter Destination Description Select the destination Switch Unit ID and type of destination file that will be copied here. Options to choose from are startup-config, running-config, and Destination File. Only after selecting the Destination File option can the destination file path and filename be entered in the space provided. Tick the Replace check box to replace the current running configuration with the indicated configuration file. Click the Apply button to initiate the copy. Click the Cancel button the discard the process. Stacking Switches in the series can physically be stacked together through the last four ports on the front panel of the Switch. Up to eight switches can be stacked and then managed through one connection to any of the LAN ports using Telnet, the Web UI, and SNMP. This cost-effective switch provides an affordable solution for administrators to upgrade their networks using the stacking ports to scale and stack the Switches. This increases overall reliability, serviceability, and availability. The stacking function needs to be enabled and configured to support either a 2-port or 4-port stacking configuration. Stacking ports or grouped together into two logical stacking ports called SIO1 (Stacking Input/Output 1) and SIO2. A group of logical stacking ports must always be connected, as a group, to another Switch in the stack. The following table lists the stacking configuration with the corresponding SIO port pairs: Configuration 2-port 10GBASE-T 2-port SFP+ 4-port Switch DGS-1520-28 DGS-1520-28MP DGS-1520-52 DGS-1520-52MP DGS-1520-28 DGS-1520-28MP DGS-1520-52 DGS-1520-52MP DGS-1520-28 DGS-1520-28MP DGS-1520-52 DGS-1520-52MP Logical SIO1 Port 25 Port 25 Port 49 Port 49 Port 27 Port 27 Port 51 Port 51 Port 25 and 26 Port 25 and 26 Port 49 and 50 Port 49 and 50 Logical SIO2 Bandwidth Port 26 40 Gbps (full-duplex) Port 26 40 Gbps (full-duplex) Port 50 40 Gbps (full-duplex) Port 50 40 Gbps (full-duplex) Port 28 40 Gbps (full-duplex) Port 28 40 Gbps (full-duplex) Port 52 40 Gbps (full-duplex) Port 52 40 Gbps (full-duplex) Port 27 and 28 80 Gbps (full-duplex) Port 27 and 28 80 Gbps (full-duplex) Port 51 and 52 80 Gbps (full-duplex) Port 51 and 52 80 Gbps (full-duplex) The following stacking topologies are supported on the Switch: • Duplex Chain - This topology stacks switches together in a chain-link format. Using this method, data transfer is only possible in one direction. If there is a break in the chain, data transfer will be affected. • Duplex Ring - This topology stacks switches in a ring or circle format where data can be transferred in two directions. It is very resilient because if there is a break in the ring, data can still be transferred through the stacking cables between switches in the stack using the alternate path. 98