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ONFIGURING
THE
S
WITCH
3-246
IP Routing
Overview
This switch supports IP routing and routing path management via static
routing definitions (page 3-269) and dynamic routing such as RIP
(page 3-273) or OSPF (page 3-285). When IP routing is enabled (page
3-274), this switch acts as a wire-speed router, passing traffic between
VLANs using different IP interfaces, and routing traffic to external IP
networks. However, when the switch is first booted, no default routing is
defined. As with all traditional routers, the routing functions must first be
configured to work.
Initial Configuration
In the default configuration, all ports belong to the same VLAN and the
switch provides only Layer 2 functionality. Therefore, you should first
create VLANs for each unique user group or application traffic (page
3-158), assign all ports that belong to the same group to these VLANs
(page 3-159), and then assign an IP interface to each VLAN (page 3-252).
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 (only as required) with Layer 3 switching.
Each VLAN represents a virtual interface to Layer 3. You just need to
provide the network address for each virtual interface, and the traffic
between different subnetworks will be routed by Layer 3 switching.