System information

12-561
Cisco SN 5428-2 Storage Router Software Configuration Guide
78-15471-01
Chapter 12 Command Line Interface Reference
vtp mode
vtp mode
To assign the VTP mode in which the SN 5428-2 Storage Router operates, use the vtp mode command.
vtp mode {client | transparent}
Syntax Description
Defaults Client.
Command Modes Administrator.
Command History
Usage Guidelines In a cluster environment, VTP configuration functions are handled by a single storage router. To
determine which storage router is performing VTP configuration functions, issue the show cluster
command. The storage router that is performing VLAN management also performs VTP configuration.
If you issue the vtp mode command from a storage router that is not performing VTP configuration
functions, the CLI displays an informational message with the name of the node that is currently
handling those functions. See Chapter 11, “Maintaining and Managing the SN 5428-2 Storage Router,”
for more information about operating the storage router in a cluster.
VTP operates in either client or transparent mode. In client mode, the storage router exchanges VTP
packets with a locally connected switch to learn about the VLANs available in the network. In
transparent mode, VTP packets are ignored and VLAN information is pulled directly from the storage
router cluster configuration.
When operating as a VTP client, the storage router sends a VTP advertisement when one of the following
events occur:
• The Gigabit Ethernet interface on any storage router in the cluster transitions to the up state and a
valid domain name has either been configured or previously learned.
• The VTP domain name changes.
• A VTP summary advertisement is received with a higher configuration revision.
The switch replies to the storage router with a summary advertisement, followed by one or more subset
advertisements.
client The storage router will operate in VTP Client mode. It will exchange VTP
packets with an externally attached switch to learn about the VLANs that
are accessible in the network. This is the default.
transparent The storage router will operate in VTP Transparent mode. It will not
exchange VTP packets and will only learn about VLANs from explicit
storage router configuration via the vlan command.
Release Modification
3.2.1 This command was introduced.