16
To avoid congestion on GigabitEthernet 1/0/4, configure 100 Mbps as the only option available for
speed negotiation on interfaces GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and GigabitEthernet
1/0/3. As a result, the transmission rate on each interface connected to a server is limited to 100 Mbps.
To set speed options for autonegotiation on an Ethernet interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Ethernet interface view.
interface
interface-type
interface-number
N/A
3.
Set speed options for
autonegotiation.
speed
auto
{
10
|
100
|
1000
} *
The default setting varies by device
model.
The
speed
and
speed auto
commands supersede each other,
and whichever is configured last
takes effect.
Configuring storm suppression
The storm suppression feature ensures that the size of a particular type of traffic (broadcast, multicast, or
unknown unicast traffic) does not exceed the threshold on an interface. When the broadcast, multicast,
or unknown unicast traffic on the interface exceeds this threshold, the system discards packets until the
traffic drops below this threshold.
Any of the
storm-constrain
,
broadcast-suppression
,
multicast-suppression
, and
unicast-suppression
commands can suppress storm on an interface. The
broadcast-suppression
,
multicast-suppression
, and
unicast-suppression
commands suppress traffic in hardware. They have less impact on the device
performance than the
storm-constrain
command, which suppresses traffic in software.
Configuration restrictions and guidelines
For the same type of traffic, do not configure storm control together with storm suppression. Otherwise,
the traffic suppression result is not determined. For more information about storm control, see
"
Configuring storm control on an Ethernet interface
."
Configuration procedure
To set storm suppression thresholds on an Ethernet interface or subinterface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Ethernet interface view.
interface
interface-type
interface-number
N/A
3.
Enable broadcast suppression
and set the broadcast
suppression threshold.
broadcast-suppression
{
ratio
|
pps
max-pps
|
kbps
max-kbps
}
By default, broadcast suppression
is disabled.
4.
Enable multicast suppression
and set the multicast
suppression threshold.
multicast-suppression
{
ratio
|
pps
max-pps
|
kbps
max-kbps
}
By default, multicast suppression is
disabled.
