Handbook

Error! Use the Home tab to apply 見出し 1 to the text that you want to appear here. 89
Basic IP routing
This chapter provides configuration background and examples for using the switch to perform IP routing
functions. The following topics are addressed in this chapter:
IP Routing Benefits
Routing Between IP Subnets
Example of Subnet Routing
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:
Provides another means to invisibly introduce Jumbo frame technology into the server-switched
network by automatically fragmenting UDP Jumbo frames when routing to non-Jumbo frame VLANs
or subnets.
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 switches are 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.
For example, consider the following topology migration:
Figure 14 Router legacy network
Switch
Blade Enclosure