Blade ICE RACKSWITCH G8124-E - Manual (Page 219)

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Basic IP Routing
This chapter provides configuration background and examples for using the G8124 to perform IP
routing functions. The following topics are addressed in this chapter:
“IP Routing Benefits” on page 219
“Routing Between IP Subnets” on page 219
“Example of Subnet Routing” on page 221
“ECMP Static Routes” on page 225
“Dynamic Host Configuration Protocol” on page 227
IP Routing Benefits
The switch uses a combination of configurable IP switch interfaces and IP routing options. The
switch IP routing capabilities provide the following benefits:
Connects the server IP subnets to the rest of the backbone network.
Provides the ability to route IP traffic between multiple Virtual Local Area Networks (VLANs)
configured on the switch.
Routing Between IP Subnets
The physical layout of most corporate networks has evolved over time. Classic hub/router
topologies have given way to faster switched topologies, particularly now that switches are
increasingly intelligent. The G8124 is intelligent and fast enough to perform routing functions on a
par with wire speed Layer 2 switching.
The combination of faster routing and switching in a single device provides another service—it
allows you to build versatile topologies that account for legacy configurations.