H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – Port Correlation Configuration
H3C S7500E Series Ethernet Switches Chapter 1 Port Correlation Configuration
1-10
Caution:
Although the storm suppression function and the storm constrain function can all be
used to control specific type of traffic, they conflict with each other. So, do not configure
the both for an Ethernet port at the same time. For example, with multicast storm
suppression ratio set on an Ethernet port, do not enable the storm constrain function for
multicast traffic on the port. Refer to
Configuring the Broadcast/Multicast/Unknown
Unicast Storm Suppression Ratio for an Ethernet Port
for information about the storm
suppression function.
With the storm constrain function enabled on an Ethernet port, you can specify the
system to act as follows when the traffic detected exceeds the threshold.
z Blocking the port. In this case, the port is blocked and thus stops forwarding the
traffic of this type till the traffic detected is lower than the threshold. Note that a port
blocked by the storm constrain function can still forward other types of traffic and
monitor the blocked traffic.
z Shutting down the port. In this case, the port is shut down and stops forwarding all
types of traffics. Ports shut down by the storm constrain function can only be
brought up by using the undo shutdown command or disabling the storm
constrain function.
Follow these steps to configure the storm constrain function on an Ethernet port:
To do… Use the command… Remarks
Enter system view
system-view
—
Set the interval for
generating traffic statistics
storm-constrain interval
seconds
Optional
Defaults to 10 seconds.
Enter Ethernet port view
interface interface-type
interface-number
—
Enable the storm
constrain function and set
the lower threshold and
the upper threshold
storm-constrain
{ broadcast | multicast }
pps max-pps-values
min-pps-values
Required
By default, the storm
constrain function is
disabled.
Set the action to be taken
when the traffic exceeds
the upper threshold
storm-constrain control
{ block | shutdown }
Optional
By default, the storm
constrain function is
disabled.