Cisco Catalyst 3750-E User Manual

14-8
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 14 Configuring VTP
Configuring VTP
• When VTP mode is changed in a switch in the stack, the other switches in the stack also change VTP
mode, and the switch VLAN database remains consistent.
VTP version 3 functions the same on a standalone switch or a stack except when the switch stack is the
p
rimary server for the VTP database. In this case, the MAC address of the stack master is used as the
primary server ID. If the master switch reloads or is powered off, a new stack master is elected.
• If you do not configure the persistent MAC address feature (by entering the stack-mac persistent
timer [0 | time-value] global configuration command, when the new master is elected, it sends a
takeover message with the new master MAC address as the primary server.
• If persistent MAC address is configured, the new master waits for the configured stack-mac
persistent timer value. If the previous master switch does not rejoin the stack during this time, then
the new master issues the takeover message.
For more information about the switch stack, see Cha
pter 5, “Managing Switch Stacks.”
Configuring VTP
These sections contain this configuration information:
• Default VTP Configuration, page 14-8
• VTP Configuration Guidelines, page 14-9
• Configuring VTP Mode, page 14-11
• Enabling the VTP Version, page 14-14
• Enabling VTP Pruning, page 14-15
• Configuring VTP on a Per-Port Basis, page 14-16
• Adding a VTP Client Switch to a VTP Domain, page 14-16
Default VTP Configuration
Table 14-2 shows the default VTP configuration.
Ta b l e 14-2 Default VTP Configuration
Feature Default Setting
VTP domain name Null.
VTP mode (VTP version 1 and
ver
sion 2)
Server.
VTP mode (VTP version 3) The mode is the same as the mode in VTP version 1 or 2 before
co
nversion to version 3.
VTP version Version 1 (Version 2 is disabled).
MST database mode Transparent.
VTP version 3 server type Secondary.
VTP password None.
VTP pruning Disabled.

Cisco Catalyst 3750-E Specifications

General

Series	Catalyst 3750-E
Switching Capacity	32 Gbps
Stacking Bandwidth	32 Gbps
StackWise Plus	Yes
Layer Support	Layer 3
MAC Address Table Size	12, 000 entries
RAM	256 MB
Flash Memory	64 MB
Memory	256 MB DRAM, 64 MB Flash
Operating Temperature	32 to 113°F (0 to 45°C)
Ports	48 10/100/1000 Ethernet ports
Form Factor	Rack-mountable
Jumbo Frame Support	Yes
Input Voltage	100 to 240 VAC
Storage Temperature	-25 to 70 °C
Relative Humidity	10 to 90% non-condensing