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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
VLAN Name VID Network Address IP Address
System (default) 1 10.32.0.0 10.32.0.1
Engineering 2 10.64.0.0 10.64.0.1
Marketing 3 10.96.0.0 10.96.0.1
Finance 4 10.128.0.0 10.128.0.1
Sales 5 10.160.0.0 10.160.0.1
Backbone 6 10.192.0.0 10.192.0.1
Table 5-9. VLAN Example – Assigned IP Addresses
The 6 IP interfaces, each with an IP address (listed in the table above), and a subnet mask of
255.224.0.0 can be entered into the Setup IP Interface menu.
Layer 3-Based VLANs
Layer 3-based VLANs use network-layer addresses (subnet address for TCP/IP) to determine VLAN
membership. These VLANs are based on layer 3 information, but this does not constitute a ‘routing’
function.
The DES-3326 allows an IP subnet to be configured for each 802.1Q VLAN that exists on the switch.
Even though a switch inspects a packet’s IP address to determine VLAN membership, no route
calculation is performed, the RIP protocol is not employed, and packets traversing the switch are
bridged using the Spanning Tree algorithm.
A switch that implements layer 3 (or ‘subnet’) VLANs without performing any routing function between
these VLANs is referred to as performing ‘IP Switching’.
Internet Protocols
This is a brief introduction to the suite of Internet Protocols frequently referred to as TCP/IP. It is
intended to give the reader a reasonable understanding of the available facilities and some familiarity
with terminology. It is not intended to be a complete description.
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