Spanning-Tree Commands
spanning-tree portfast
Page 308
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. 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 1/15
.
Console(config)#
interface ethernet
1/15
Console(config-if)#
spanning-tree portfast
Summary of Contents for xStack DWS-3200 Series
Page 2: ......
Page 3: ......
Page 25: ...Using the CLI Editing Features Page 22 ...
Page 91: ...Clock Commands show sntp status Page 88 ...
Page 101: ...Configuration and Image File Commands show bootvar Page 98 ...
Page 137: ...GVRP Commands show gvrp error statistics Page 134 ...
Page 147: ...IGMP Snooping Commands show ip igmp snooping groups Page 144 ...
Page 163: ...IP Address Commands show hosts Page 160 ...
Page 177: ...LACP Commands show lacp port channel Page 174 ...
Page 187: ...Line Commands show line Page 184 ...
Page 195: ...Management ACL Commands show management access class Page 192 ...
Page 201: ...PHY Cable Diagnostics Commands show fiber ports optical transceiver Page 198 ...
Page 217: ...Port Monitor Commands Page 214 ...
Page 341: ...Spanning Tree Commands show spanning tree Page 338 ...
Page 395: ...System Management Commands show system mode Page 392 ...
Page 413: ...User Interface Commands show privilege Page 410 ...
Page 437: ...VLAN Commands show vlan protocols groups Page 434 ...
Page 451: ...Web Server Commands show ip https Page 448 ...
Page 477: ...802 1x Commands show dot1x advanced Page 474 ...
Page 483: ...Wireless AP BSS Commands data rates Page 480 ...
Page 517: ...WLAN Domain Commands wlan domain member approve Page 514 ...
Page 547: ...Wireless AP Radio Commands beacon period Page 544 ...
Page 555: ...Wireless Rogue AP Commands show wlan rogue aps neighborhood Page 552 ...
Page 573: ...Wireless WLAN Commands show wlan stations counters Page 570 ...
Page 581: ...Page 578 ...