spanning-tree trap
Syntax
spanning-tree trap {new-root | topology-change [vlan ] | errant-bpdu | root-guard-inconsistency | loop-guard-inconsistency} no spanning-tree trap {new-root|topology-change [vlan ] | errant-bpdu | root-guard-inconsistency | loop-guard-inconsistency}
Description
This command enables SNMP traps for new root, topology change event, errant-bpdu received event, root-guard inconsistency, and loop-guard inconsistency notifications. It is disabled by default.
Theno
form of this command disables SNMP traps for new root and topology change event notifications.
Command context
config
Parameters
-
new-root
-
Enables SNMP notification when a new root is elected on any PVST vlan on the switch.
-
topology-change
-
Enables SNMP notification when a topology change event occurred in specified PVST vlan on the switch.
-
errant-bpdu
-
Enables SNMP notification when an errant bpdu is received by any PVST vlan on the switch.
-
root-guard-inconsistency
-
Enables SNMP notification when the root-guard finds the port inconsistent for any PVST vlan on the switch.
-
loop-guard-inconsistency
-
Enables SNMP notification when the loop-guard finds the port inconsistent for any PVST vlan on the switch.
Authority
Administrators or local user group members with execution rights for this command.
Examples
switch(config)#spanning-tree trap新的根启用时发送通知a new root is elected topology-change Enable notifications which are sent when a topology change occurs errant-bpdu Enable notifications which are sent when an errant bpdu is received root-guard-inconsistency Enable notifications which are sent when root guard inconsistency occurs loop-guard-inconsistency Enable notifications which are sent when root guard inconsistency occurs switch(config)#spanning-tree trap new-rootswitch(config)#spanning-tree trap topology-changevlan Enable topology change notification for the specified PVST vlan id. switch(config)#spanning-tree trap topology-change vlan<0-64> Enable topology change information on the specified vlan id. switch(config)#spanning-tree trap topology-change vlan 1 switch(config)#spanning-tree trap errant-bpdu switch(config)#spanning-tree trap root-guard-inconsistency switch(config)#spanning-tree trap loop-guard-inconsistency
switch(config)#no spanning-tree trapnew-root Disable notifications which are sent when a new root is elected topology-change Disable notifications which are sent when a topology change occurs errant-bpdu Disable notifications which are sent when an errant bpdu is received root-guard-inconsistency Disable notifications which are sent when root guard inconsistency occurs loop-guard-inconsistency Disable notifications which are sent when root guard inconsistency occurs switch(config)#no spanning-tree trap new-rootswitch(config)#no spanning-tree trap topology-changeinstance Disable topology change notification for the specified PVST vlan id. switch(config)#no spanning-tree trap topology-change vlan<0-64> Disable topology change information on the specified PVST vlan id. switch(config)#no spanning-tree trap topology-change vlan 0 switch(config)#no spanning-tree trap errant-bpdu switch(config)#no spanning-tree trap root-guard-inconsistency switch(config)#no spanning-tree trap loop-guard-inconsistency