228
C
HAPTER
15: S
PANNING
-T
REE
C
OMMANDS
Command Mode
MST Configuration mode
User Guidelines
There are no user guidelines for this command.
Example
The following example exits the MST Configuration mode without saving
changes.
spanning-tree
guard root
The
spanning-tree guard root
Interface Configuration (Ethernet,
port-channel) mode command enables root guard on all spanning tree
instances on the interface. Root guard prevents the interface from
becoming the root port of the device. To disable root guard on the
interface, use the
no
form of this command.
Syntax
spanning-tree guard root
no spanning-tree guard root
Default Configuration
Root guard is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
Root guard can be enabled when the device operates in STP, RSTP and
MSTP.
When root guard is enabled, the port changes to the alternate state if
spanning-tree calculations selects the port as the root port.
Console(config) #
spanning-tree mst configuration
Console(config-mst) #
abort
Содержание 3CRUS2475 24
Страница 18: ......
Страница 40: ...40 CHAPTER 2 AAA COMMANDS ...
Страница 54: ...54 CHAPTER 3 ACL COMMANDS ...
Страница 76: ...76 CHAPTER 4 ADDRESS TABLE COMMANDS ...
Страница 165: ...show sntp status 165 g13 0 0 0 0 00 00 00 0 Feb 19 2005 vlan 1 16 1 1 2 00 15 15 16 0 LLBG Feb 19 2006 ...
Страница 166: ...166 CHAPTER 10 CLOCK COMMANDS ...
Страница 200: ...200 CHAPTER 13 LACP COMMANDS ...
Страница 208: ...208 CHAPTER 14 POWER OVER ETHERNET COMMANDS ...
Страница 262: ...262 CHAPTER 15 SPANNING TREE COMMANDS ...
Страница 278: ...278 CHAPTER 17 RADIUS COMMAND ...
Страница 281: ...show ports monitor 281 g1 8 RX TX Active g2 8 RX TX Active g18 8 RX Active ...
Страница 282: ...282 CHAPTER 18 PORT MONITOR COMMANDS ...
Страница 306: ...306 CHAPTER 19 SNMP COMMANDS ...
Страница 316: ...316 CHAPTER 20 IP ADDRESS COMMANDS ...
Страница 330: ...330 CHAPTER 22 WIRELESS ROGUE AP COMMANDS ...
Страница 350: ...350 CHAPTER 23 WIRELESS ESS COMMANDS ...
Страница 382: ...382 CHAPTER 25 SSH COMMANDS ...
Страница 400: ...400 CHAPTER 27 TACACS COMMANDS Global values TimeOut 3 ...
Страница 444: ...444 CHAPTER 31 USER INTERFACE COMMANDS ...
Страница 454: ...454 CHAPTER 32 GVRP COMMANDS ...
Страница 492: ...492 CHAPTER 34 802 1X COMMANDS ...
Страница 521: ...Troubleshooting Solutions 521 ...
Страница 522: ...522 CHAPTER 37 TROUBLESHOOTING ...