Specifications

VLANs
Rev. 9.41 Module 2 – 51
Example of layer 2 forwarding
On this example network, a user wants to access information on the database server.
Both the user’s workstation and the database server are in VLAN 10.
 First communication: Because the user’s workstation has not recently
communicated with the server, the workstation sends an Address Resolution
Protocol (ARP) request to discover the server’s MAC address. When the
workstation’s switch receives this request, it checks its forwarding table. If it has
an entry for the database server's IP address, the switch sends the server’s MAC
address to the workstation.
If not, the switch broadcasts the ARP request to all devices in the VLAN,
forwards any response it receives to the workstation, and updates its forwarding
table.
For HP Internal Use Only