216
C
HAPTER
15: S
PANNING
-T
REE
C
OMMANDS
Example
The following example configures the spanning priority on Ethernet port
g15 to 96.
spanning-tree
portfast
The
spanning-tree portfas
t Interface Configuration mode command
enables PortFast mode. In PortFast mode, the interface is immediately put
into the forwarding state upon linkup without waiting for the standard
forward time delay. To disable PortFast mode, use the
no
form of this
command.
Syntax
spanning-tree portfast
[
auto
]
no spanning-tree portfast
Parameters
■
auto
— Specifies that the software waits for 3 seconds (With no
BPDUs received on the interface) before putting the interface into the
PortFast mode.
Default Configuration
PortFast mode is disabled.
Command Modes
Interface Configuration (Ethernet, port-channel) mode
User Guidelines
This feature should be used only with interfaces connected to end
stations. Otherwise, an accidental topology loop could cause a data
packet loop and disrupt device and network operations.
Example
The following example enables PortFast on Ethernet port g15.
Console(config)#
interface ethernet
g15
Console(config-if)#
spanning-tree port-priority
96
Console(config)#
interface ethernet
g15
Console(config-if)#
spanning-tree portfast
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 ...