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If the options for speed auto negotiation configured by using the speed auto command on the two ends
overlap with each other, the negotiated speed will be the overlapped speed option. For example, when one
end is configured with speed auto 10 100 and the other end is configured with speed auto 100, the
negotiated speed will be 100 Mbps.
If the options for speed auto negotiation configured by using the speed auto command on the two ends
are the same, the negotiated speed will be the highest speed among the options. For example, when the two
ends are both configured with speed auto 10 100, the negotiated speed will be 100 Mbps.
Examples
# Configure the port Ethernet 1/0/1 to use 10 Mbps and 100 Mbps for speed negotiation.
<Sysname> system-view
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] speed auto 10 100
storm-constrain
Syntax
storm-constrain { broadcast | multicast | unicast } { pps | kbps | ratio } max-values min-values
undo storm-constrain { all | broadcast | multicast | unicast }
View
Layer 2 Ethernet interface view
Default level
2: System level
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.
min-values: Sets the lower threshold, ranging from 1 to max-values.
Description
Use storm-constrain to enable broadcast, multicast, or unknown unicast storm control on an Ethernet
port.
Use undo storm-constrain to disable storm control.
By default, traffic storm control is disabled.
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.
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