D-Link xStack DGS-3426 Cli Manual page 91

config traffic control
Restrictions
Example usage:
To configure traffic control and enable broadcast storm control system wide:
xStack DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
detected on the Switch. The user has two options:
•
drop - Utilizes the hardware Traffic Control mechanism, which
means the Switch's hardware will determine the Packet Storm
based on the Threshold value stated and drop packets until the
issue is resolved.
•
shutdown - Utilizes the Switch's software Traffic Control mechanism
to determine the Packet Storm occurring. Once detected, the port
will deny all incoming traffic to the port except STP BPDU packets,
which are essential in keeping the Spanning Tree operational on
the Switch. If the countdown timer has expired and yet the Packet
Storm continues, the port will be placed in Shutdown Forever mode
and is no longer operational until the user manually resets the port
using the config ports enable command. Choosing this option
obligates the user to configure the time_interval field as well, which
will provide packet count samplings from the Switch's chip to
determine if a Packet Storm is occurring.
threshold <value 0-255000> − The upper threshold at which the specified
traffic control is switched on. The <value> is the number of
broadcast/multicast/dlf packets, in packets per second (pps), received by the
Switch that will trigger the storm traffic control measures. The default setting
is 131072.
time_interval - The Interval will set the time between Multicast and Broadcast
packet counts sent from the Switch's chip to the Traffic Control function.
These packet counts are the determining factor in deciding when incoming
packets exceed the Threshold value.
• sec 5-30 - The Interval may be set between 5 and 30 seconds with
the default setting of 5 seconds.
countdown - The countdown timer is set to determine the amount of time, in
minutes, that the Switch will wait before shutting down the port that is
experiencing a traffic storm. This parameter is only useful for ports configured
as shutdown in the action field of this command and therefore will not
operate for Hardware based Traffic Control implementations.
•
0 - 0 is the default setting for this field and 0 will denote that the port
will never shutdown.
• minutes 5-30 – Select a time from 5 to 30 minutes that the Switch will
wait before shutting down. Once this time expires and the port is still
experiencing packet storms, the port will be placed in shutdown
forever mode and can only be manually recovered using the config
ports command mentioned previously in this manual.
Only administrator-level users can issue this command.
DGS-3400:4#config traffic control all broadcast enable
Command: config traffic control all broadcast enable
Success.
DGS-3400:4#
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