Specifications

Getting Started with HP ProCurve Switching and Routing
Module 3 – 66 Rev. 9.41
Lesson 1 — Basic Routing Concepts
Routing versus switching
In Module 2: VLANs, you learned how a switch forwards traffic at Layer 2 if a device
communicates with another device in the same VLAN.
Generally each VLAN has a separate subnet.
If a device sends traffic to a device in another VLAN, it implies that this traffic must
be sent to another subnet. This traffic must be routed.
Routing and switching use different information in the process of moving data from
source to destination:
 Layer 2 switching is based on MAC Address
 Layer 3 routing is based on IP Address
Although the traffic can be routed by either a Layer 3 switch or a router, the routing
examples in this module feature a Layer 3 switch.
For HP Internal Use Only