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3com 8807 Reference Guide

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MSTP Configuration Commands
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Description
Use the stp no-agreement-check command to enable port fast transition.
Use the undo stp interface no-agreement-check command to disable port fast 
transition.
By default, port fast transition is disabled.
Related command: stp interface no-agreement-check.
n 
You can configure fast transition only on a root port or an alternate port.
Example
# Enable fast transition on GigabitEthernet1/1/1.
<SW8800> system-view
 
System View: return to User View with Ctrl+Z.
 
[SW8800]interface GigabitEthernet1/1/1
 
[3Com-GigabitEthernet1/1/1]stp no-agreement-check
 
[3Com-GigabitEthernet1/1/1] 
stp non-flooding
Syntax
stp non-flooding [ slot slotnum ]
undo stp non-flooding [ slot slotnum ]
View
System view
Parameter
slot slotnum: Specifies the slot of the I/O Module (line process unit). The slotnum 
argument is the slot number.
Description
Use the stp non-flooding command to discard BPDU packets received by 
STP-disabled ports.
Use the undo stp non-flooding command to forward BPDU packets within the 
VLAN to which the STP-disabled ports belong.
By default, BPDU non-flooding is disabled.
Related command: stp enable.
Example
# -Discard BPDU packets received on STP-disabled port.
<SW8800> system-view
 
System View: return to User View with Ctrl+Z.
 
[SW8800] interface GigabitEthernet3/1/1
 
[3Com-GigabitEthernet3/1/1]stp disable
 
[SW8800] stp non-flooding 
# Discard BPDU packets received on STP-disabled port on slot 3.