LevelOne GTL-2690 - Manual (Page 318)

19-1
Chapter 19: IP Routing
Overview
This switch supports IP routing and routing path management via static routing
definitions (page 19-21) and dynamic routing protocols such as RIP or OSPF
(page 20-2 or 20-14, respectively). When IP routing is enabled (page 19-4), this
switch acts as a wire-speed router, passing traffic between VLANs with different IP
interfaces, and routing traffic to external IP networks. However, when the switch is
first booted, default routing can only forward traffic between local interfaces. As with
all traditional routers, the static and dynamic routing functions must first be
configured to work.
Initial Configuration
By default, all ports belong to the same VLAN and the switch provides only Layer 2
functionality. To segment the attached network, first create VLANs for each unique
user group or application traffic (page 11-6), assign all ports that belong to the same
group to these VLANs (page 11-7), and then assign an IP interface to each VLAN
(page 19-5). By separating the network into different VLANs, it can be 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 (as required) with Layer 3 switching.