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Predefined user roles
network-admin
Usage guidelines
This command takes effect after you configure it on the interface at either end of a link and the two
interfaces are configured to automatically negotiate the speed.
This command is applicable only to GE interfaces.
Examples
# Enable automatic negotiation for speed downgrading on GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] speed auto downgrade
Related commands
speed auto
unicast-suppression
Use unicast-suppression to enable unknown unicast storm suppression and set the unknown
unicast storm suppression threshold.
Use
undo unicast-suppression to disable unknown unicast storm suppression.
Syntax
unicast-suppression { ratio | pps max-pps | kbps max-kbps }
undo unicast-suppression
Default
Ethernet interfaces do not suppress unknown unicast traffic.
Views
Ethernet interface view
Predefined user roles
network-admin
Parameters
ratio: Sets the unknown unicast suppression threshold as a percentage of the interface bandwidth.
The value range for this argument (in percentage) is 0 to 100. A smaller value means that less
unknown unicast traffic is allowed to pass through.
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.
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