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2 layer 3 switching, 1 initial configuration – Planet Technology WGS3-2620 User Manual

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WGS3 Layer 3 Switch User’s Manual

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6.2 Layer 3 Switching

The two major functions provided by a Layer 3 switch include IP Switching and Routing Path

Management. When the switch is set to multilayer mode, it acts as a routing switch, with support for

standard IP routing and the ability to pass traffic between VLANs as required. However, when the switch

is first set to multilayer mode, no default routing is defined. As with all traditional routers, the routing

function must first be configured to work. (RIP).

6.2.1 Initial Configuration

In the default configuration, all ports belong to the same virtual LAN and the switch provides only Layer 2

functionality. So you should first group all the ports that belong to the same subnet into virtual LANs. By

separating the switch into different VLANs, the network is partitioned into subnetworks that are

disconnected at Layer 2. Network traffic within the same subnet is still switched using Layer 2 switching.

And the VLANs can now be interconnected (only as required) with Layer 3 switching. Each VLAN

represents a virtual interface to Layer 3. You just need to provide the network addresses for each virtual

interface, and the traffic between different subnetworks will be routed by Layer 3 switching.

VLAN Configuration for Layer 3

Note: When operating the switch in multilayer mode, all ports should be defined as untagged, and no

VLANs can overlap. You should also assign the same default PVID to the ports at both ends of a link if

the VLAN must cross the switches. (See “VLAN Tagging” configuration.) These limitations will be

removed for future firmware versions.