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Parameters
all: Disables storm control for all types of packets: broadcast, multicast, and unknown unicast.
broadcast: Enables or disables broadcast storm control.
multicast: Enables or disables multicast storm control.
unicast: Enables or disables unknown unicast storm control.
pps: Sets storm control thresholds in pps.
kbps: Sets storm control thresholds in kbps.
ratio: Sets storm control thresholds as a percentage of the transmission capacity of the interface.
max-values: Sets the upper threshold, in pps, kbps, or percentage. The value range for this argument
varies with device models.
min-values: Sets the lower threshold. The value range for this argument is 1 to max-values. Avoid setting
the lower threshold to be the same as the upper threshold.
Description
Use the storm-constrain command to enable broadcast, multicast, or unknown unicast storm control on
an Ethernet port.
Use the undo storm-constrain command to disable storm control.
By default, traffic storm control is disabled.
NOTE:
• To achieve desirable storm protection effect, avoid configuring both the storm-constrain command and
any storm suppression command (unicast-suppression, multicast-suppression, and
broadcast-suppression) on a port.
• An upper threshold must be greater than or equal to the corresponding lower threshold. H3C does no
recommend you to configure the same value for the two thresholds.
Examples
# Enable unknown unicast storm control on interface GigabitEthernet 1/0/1, setting the upper and lower
thresholds to 200 pps and 150 pps.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] storm-constrain unicast pps 200 150
# Enable broadcast storm control on interface GigabitEthernet 1/0/1, setting the upper and lower
thresholds to 2000 kbps and 1500 kbps.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] storm-constrain broadcast kbps 2000 1500
# Enable multicast storm control on port GigabitEthernet 1/0/1, setting the upper and lower thresholds
to 80% and 15%.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] storm-constrain multicast ratio 80 15
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