Layer 2 Ethernet Interface Commands; Display Storm-Constrain - H3C S6812 Series Command Reference Manual

pps max-pps: Specifies the maximum number of unknown unicast packets that the interface can
forward per second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the interface
bandwidth.
kbps max-kbps: Specifies the maximum number of kilobits of unknown unicast traffic that the
Ethernet interface can forward per second. The value range for this argument (in kbps) is 0 to the
interface bandwidth.
Usage guidelines
The unknown unicast storm suppression feature limits the size of unknown unicast traffic to a
threshold on an interface. When the unknown unicast traffic on the interface exceeds this threshold,
the system discards packets until the unknown unicast traffic drops below this threshold.
Both the storm-constrain command and the unicast-suppression command can suppress
unknown unicast storms on a port. The unicast-suppression command uses the chip to physically
suppress unknown unicast traffic. It has less influence on the device performance than the
storm-constrain command, which uses software to suppress unknown unicast traffic.
For the unknown unicast traffic suppression result to be determined, do not configure both the storm
constrain unicast command and the unicast-suppression command on an interface.
When you configure the suppression threshold in kbps, the actual suppression threshold might be
different from the configured one as follows:
•
If the configured value is smaller than 64, the value of 64 takes effect.
•
If the configured value is greater than 64 but not an integer multiple of 64, the integer multiple of
64 that is greater than and closest to the configured value takes effect.
To determine the suppression threshold that takes effect, see the prompts on the switch.
Examples
# Set the unknown unicast storm suppression threshold to 10000 kbps on Ten-GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] unicast-suppression kbps 10000
The actual value is 10048 on port Ten-GigabitEthernet1/0/1 currently.
The output shows that the value that takes effect is 10048 kbps (157 times of 64), because the chip
only supports step 64.
Related commands
broadcast-suppression
multicast-suppression

Layer 2 Ethernet interface commands

display storm-constrain

Use display storm-constrain to display storm control settings and statistics.
Syntax
display storm-constrain [ broadcast | multicast | unicast ] [ interface interface-type
interface-number ]
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