D-Link DGS-3212SR [16/224] Stacking led indicators

DGS-3212SR Stackable Gigabit Layer 2 Switch

Stacking LED Indicators

Stacking LED indicators include the Stack ID indicator on the front panel and the Link/Act indicators on the front of the

DEM-540 stacking module.

NOTICE: The four build-in combination ports on the front panel of the

DGS-3212SR can be configured as stacking ports using the CLI.

Each IEEE 1394 stacking module has a single Link/Act LED indicator on its front panel for each IEEE 1394 IN/OUT pair.

Figure 1- 3. Front panel of DEM-540 IEEE 1394 stacking module

Link/Act

The Link/Act LEDs have the same function as the corresponding LEDs for the

Switch’s built-in Gigabit Ethernet ports. The Link LED lights to confirm a valid link,

while the Act LED blinks to indicate activity on the link.

Stack ID

The Switch includes a digital indicator to indicate the Switch status in a stacked

Switch group. An “F” indicates the Switch is acting in the capacity of a master Switch

of a stacked group of DGS-3212SR/DES-3226S Switches. The remaining slave

Switches in the group will display a corresponding stack number (1-C) to indicate the

logical position of the slave Switch in the stacked group. See the discussion of Switch

Stacking below for more information on stacking DGS-3212SR/DES-3226S Switches.

NOTICE: Do not connect the stacked Switch group to the network until you have

properly configured all Switches for stacking. An improperly configured Switch

stack can cause a broadcast storm.