Related Manuals for Digital Data Communications Level One GTL-2091
Summary of Contents for Digital Data Communications Level One GTL-2091
- Page 1 STP Optional Characteristic Configuration Commands (GTL-2091) V1.0 Digital Data Communications GmbH, Germany. http://www.level1.com...
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Page 2: Table Of Contents
Table of Contents Table of Contents Chapter 1 STP Optional Characteristic Configuration Commands ................... 1 1.1 STP Optional Characteristic Configuration Commands ..................1 1.1.1 spanning-tree portfast ......................... 1 1.1.2 spanning-tree bpduguard ........................2 1.1.3 spanning-tree bpdufilter........................3 1.1.4 spanning-tree uplinkfast ........................4 1.1.5 spanning-tree backbonefast ........................ -
Page 3: Chapter 1 Stp Optional Characteristic Configuration Commands
STP Optional Characteristic Configuration Commands Chapter 1 STP Optional Characteristic Configuration Commands 1.1 STP Optional Characteristic Configuration Commands 1.1.1 spanning-tree portfast Description To enable bridge protocol data unit (BPDU) filtering by default on all PortFast ports, use the spanning-tree portfast command in global configuration mode. To return to the default settings, use the negative form of this command. -
Page 4: Spanning-Tree Bpduguard
STP Optional Characteristic Configuration Commands After configuring Port Fast, BPDU Guard or BPDU Filter needs to be configured for protection. Command mode Global or interface configuration mode Example This example shows how to enable PortFast mode globally: Console_config# spanning-tree portfast default Console_config# This example shows how to enable PortFast mode on the interface f0/0: Console_config_f0/0# spanning-tree portfast... -
Page 5: Spanning-Tree Bpdufilter
STP Optional Characteristic Configuration Commands Command mode Interface configuration Example This example shows how to enable BPDU guard on this interface: Console_config_f0/0# spanning-tree bpduguard enable Console_config_f0/0# 1.1.3 spanning-tree bpdufilter Description To enable bridge protocol data unit (BPDU) filtering on the interface, use the spanning-tree bpdufilter command in interface configuration mode. -
Page 6: Spanning-Tree Uplinkfast
STP Optional Characteristic Configuration Commands Console_config_f0/0# 1.1.4 spanning-tree uplinkfast Description To enable the debugging of the spanning-tree UplinkFast events, use the debug spanning-tree uplinkfast command. To disable the debugging output, use the negative form of this command. spanning-tree uplinkfast [max-update-rate pkts-per-second] no spanning-tree uplinkfast [max-update-rate] Parameter None... -
Page 7: Spanning-Tree Guard
STP Optional Characteristic Configuration Commands no spanning-tree backbonefast Parameter None Default Disabled Instruction Backbone Fast characteristic is only valid in SSTP/PVST mode. Command mode Global configuration Example The following command enables backbonefast characteristic: Console_config# spanning-tree backbonefast Console_config# 1.1.6 spanning-tree guard Description To enable or disable the guard mode, use the spanning-tree guard command in interface configuration mode. -
Page 8: Spanning-Tree Loopguard
STP Optional Characteristic Configuration Commands Default Disabled Instruction Root Guard characteristic can prevent a port from becoming Root port due to receving high priority BPDU. Loop Guard characteristic can protect a Root Port or a Alternate Port when it becomes the Designated Port. - Page 9 STP Optional Characteristic Configuration Commands Command mode Global configuration Example The following command enables loopguard function: Console_config# spanning-tree loopguard default Console_config# http://www.level1.com - 7 -...