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CHAPTER 17
Configuring VLANs
This chapter includes the following sections:
• Named VLANs, page 277
• Private VLANs, page 278
• VLAN Port Limitations, page 279
• Configuring Named VLANs, page 280
• Configuring Private VLANs, page 285
• Viewing the VLAN Port Count, page 291
Named VLANs
A named VLAN creates a connection to a specific external LAN. The VLAN isolates traffic to that external
LAN, including broadcast traffic.
The name that you assign to a VLAN ID adds a layer of abstraction that allows you to globally update all
servers associated with service profiles that use the named VLAN. You do not need to reconfigure the servers
individually to maintain communication with the external LAN.
You can create more than one named VLAN with the same VLAN ID. For example, if servers that host
business services for HR and Finance need to access the same external LAN, you can create VLANs named
HR and Finance with the same VLAN ID. Then, if the network is reconfigured and Finance is assigned to a
different LAN, you only have to change the VLAN ID for the named VLAN for Finance.
In a cluster configuration, you can configure a named VLAN to be accessible only to one fabric interconnect
or to both fabric interconnects.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
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