Stp Transmit-Limit - 3Com 7750 Series Command Reference Manual

3Com Switch 7750 Series
Command Reference Guide – MSTP
Spanning trees may be regenerated even in a steady network if an upstream switch
continues to be busy. You can configure the timeout time factor to a larger number to
avoid this. Normally, the timeout time can be four (or more) times of the Hello time. For
a steady network, the timeout time can be five to seven times of the Hello time.
Example
# Set the Hello time factor to 7.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] stp timer-factor 7

1.1.44 stp transmit-limit

Syntax
stp transmit-limit packetnum
undo stp transmit-limit
View
Ethernet port view
Parameter
packetnum: Maximum number of configuration BPDUs a port can transmit in each
Hello time. This argument ranges from 1 to 255 and defaults to 5.
Description
Use the stp transmit-limit command to set the maximum number of configuration
BPDUs the current port can transmit in each Hello time.
Use the undo stp transmit-limit command to revert to the default maximum number.
A larger number configured by the stp transmit-limit command allows more
configuration BPDUs can be transmitted in each Hello time, which may occupy more
switch resources. So configure it to a proper value to avoid MSTP from occupying too
many network resources.
Related command: stp interface transmit-limit.
Example
# Set the maximum number of configuration BPDUs that can be transmitted by the
Ethernet1/0/1 port in each Hello time to 15.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] interface Ethernet1/0/1
[3Com-Ethernet1/0/1] stp transmit-limit 15
Chapter 1 MSTP Configuration Commands
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