Spanning-Tree Commands
Page 305
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
no spanning-tree portfast
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 DXS-3227 - xStack Switch - Stackable
Page 12: ...Page 11 ...
Page 46: ...ACL Commands Page 45 ...
Page 68: ...Address Table Commands Page 67 ...
Page 124: ...Ethernet Configuration Commands Page 123 ...
Page 134: ...GVRP Commands Page 133 ...
Page 144: ...IGMP Snooping Commands Page 143 ...
Page 158: ...IP Addressing Commands Page 157 Console config ip helper address 172 16 9 9 49 53 ...
Page 166: ...IP Addressing Commands Page 165 ...
Page 186: ...Line Commands Page 185 ...
Page 194: ...Management ACL Commands Page 193 ...
Page 200: ...PHY Diagnostics Commands Page 199 ...
Page 208: ...Port Monitor Commands Page 207 ...
Page 216: ...Power over Ethernet Commands Page 215 ...
Page 272: ...RMON Commands Page 271 ...
Page 334: ...Spanning Tree Commands Page 333 ...
Page 428: ...VLAN Commands Page 427 ...
Page 466: ...802 1x Commands Page 465 ...