Lindy 25020 manual DIP-Switch, a. Home VLAN, b. TRUNK, Broadcast Storm Control

2.4.2DIP-Switch

This Switch provides DIP-Switches setting to configuration, the configuration setting as below:

a.Home VLAN

We have provided two DIP-Switches for the Home VLAN setting.

	Left side DIP-Switch	Right side DIP-Switch
SW up	Home VLAN Disable	Home VLAN TYPE A
SW down	Home VLAN Enable	Home VLAN TYPE B

Home VLAN TYPE A: Select 14 VLANs (port#1	#7, #9 #15) with two overlapping ports (port#8, #16) topology. (VLAN1:
port#1, #8, #16; VLAN2: port#2, #8, #16; VLAN3: port#3, #8, #16, …; VLAN14: port#15, #8, #16)
Home VLAN TYPE B: Select 15 VLANs(port#1	#15) with one overlapping port (port#16) topology. (VLAN1: port#1, #16; VLAN2:
port#2, #16; …; VLAN15: port#15, #16)

This function for network topology security configuration. When the Port-Based security function is enabled, the 16-Ports Switch can be configured as 14 (or 15) individual VLANs that share the same two (or one) overlapping port(s). This 14 VLANs or 15 VLANs topology is useful to allow home networks to share common servers or routers, this function can be used on Fiber To The Home (FTTH) or Ethernet To The Home (ETTH) application.

Note: Only when the left side DIP-Switch move to “ON”, the function of the right side DIP-Switch would be active.

b. TRUNK

We have support Four DIP-Switches for the TRUNK Port setting.

	A	B	C	D
SW up	TRUNK A Disable	TRUNK B Disable	TRUNK C Disable	TRUNK D Disable
SW down	TRUNK A Enable	TRUNK B Enable	TRUNK C Enable	TRUNK D Enable

TRUNK A: Port#1, #2, #9, #10

TRUNK B: Port#3, #4, #11, #12

TRUNK C: Port#5, #6, #13, #14 ￿TRUNK D: Port#7, #8, #15, #16

If the trunk function enable, it can be provided 800Mbps bandwidth between two devices, it is useful to allow high bandwidth in Backbone or server connection.

Note: If the Home VLAN function is enabled, it will disable the TRUNK function setting.

c. 100FX (100BASE-FX operation mode setting) (only for Switch w/ Fiber port)
This DIP-Switch is setting to configuration 100Mbps￿				Half￿-/Full-Duplex on the Fiber port.
			￿
		Operation mode
	SW up	100Mbps Half-Duplex
	SW down	100Mbps Full-Duplex

Note: When the DIP-Switches configuration changes, the Switch had to be “Power Reset”. Please reboot after configuration change.

2.5Broadcast Storm Control

The Broadcast Storm Control discards broadcast frames when the number of cumulated non-unicast frames is over the threshold, in order to prevent Network Traffic congestion bringing the Network to a halt. In this Switch, each port will drop broadcast packets (Destination MAC ID is ff ff ff ff ff ff) after receiving continuous 64 broadcast packets. The counter will be reset to 0 every 800ms or when receiving any non-broadcast packets. (Destination MAC ID is not ff ff ff ff ff ff)

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