
Spanning-Tree Commands
363
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the spanning priority on Ethernet port 1/e15 to 96.
spanning-tree portfast
The
spanning-tree portfast
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. Use the
no
form of this command to disable PortFast mode.
Syntax
•
spanning-tree portfast [auto]
•
no spanning-tree portfast
•
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 Mode
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 1/e15
.
Console(config)#
interface ethernet
1/e15
Console(config-if)#
spanning-tree port-priority
96
Console(config)#
interface ethernet
1/e15
Console(config-if)#
spanning-tree portfast
book.book Page 363 Thursday, December 18, 2008 7:40 PM
Содержание PowerConnect 3500 Series
Страница 62: ...62 Command Groups book book Page 62 Thursday December 18 2008 7 40 PM ...
Страница 80: ...80 Command Modes book book Page 80 Thursday December 18 2008 7 40 PM ...
Страница 124: ...124 Address Table Commands book book Page 124 Thursday December 18 2008 7 40 PM ...
Страница 162: ...162 DHCP Snooping book book Page 162 Thursday December 18 2008 7 40 PM ...
Страница 244: ...244 Line Commands book book Page 244 Thursday December 18 2008 7 40 PM ...
Страница 266: ...266 LLDP Commands book book Page 266 Thursday December 18 2008 7 40 PM ...
Страница 276: ...276 Login Banner book book Page 276 Thursday December 18 2008 7 40 PM ...
Страница 280: ...280 PHY Diagnostics Commands book book Page 280 Thursday December 18 2008 7 40 PM ...
Страница 290: ...290 Power over Ethernet Commands book book Page 290 Thursday December 18 2008 7 40 PM ...
Страница 294: ...294 Port Channel Commands book book Page 294 Thursday December 18 2008 7 40 PM ...
Страница 298: ...298 Port Monitor Commands book book Page 298 Thursday December 18 2008 7 40 PM ...
Страница 310: ...310 QoS Commands book book Page 310 Thursday December 18 2008 7 40 PM ...
Страница 318: ...318 RADIUS Commands book book Page 318 Thursday December 18 2008 7 40 PM ...
Страница 414: ...414 Syslog Commands book book Page 414 Thursday December 18 2008 7 40 PM ...
Страница 440: ...440 TACACS Commands book book Page 440 Thursday December 18 2008 7 40 PM ...
Страница 452: ...452 TIC Commands book book Page 452 Thursday December 18 2008 7 40 PM ...
Страница 460: ...460 Tunnel book book Page 460 Thursday December 18 2008 7 40 PM ...
Страница 492: ...492 VLAN Commands book book Page 492 Thursday December 18 2008 7 40 PM ...
Страница 500: ...500 Voice VLAN book book Page 500 Thursday December 18 2008 7 40 PM ...
Страница 514: ...514 Web Server book book Page 514 Thursday December 18 2008 7 40 PM ...