Microsens MS453490M Management Guide - Manual (Page 740)

C HAPTER 31 | Automatic Traffic Control Commands
– 740 –
U SAGE G UIDELINES
ATC includes storm control for broadcast or multicast traffic. The control
response for either of these traffic types is the same, as shown in the
following diagrams.
Figure 291: Storm Control by Limiting the Traffic Rate
The key elements of this diagram are described below:
◆ Alarm Fire Threshold – The highest acceptable traffic rate. When
ingress traffic exceeds the threshold, ATC sends a Storm Alarm Fire
Trap and logs it.
◆ When traffic exceeds the alarm fire threshold and the apply timer
expires, a traffic control response is applied, and a Traffic Control Apply
Trap is sent and logged.
◆ Alarm Clear Threshold – The lower threshold beneath which an control
response can be automatically terminated after the release timer
snmp-server enable
port-traps atc
multicast-control-
apply
Sends a trap when multicast traffic exceeds the
upper threshold for automatic storm control and
the apply timer expires
IC (Port)
snmp-server enable
port-traps atc
multicast-control-
release
Sends a trap when multicast traffic falls beneath
the lower threshold after a storm control
response has been triggered and the release
timer expires
IC (Port)
ATC Display Commands
show auto-traffic-
control
Shows global configuration settings for
automatic storm control
PE
show auto-traffic-
control interface
Shows interface configuration settings and
storm control status for the specified port
PE
* Enabling automatic storm control on a port will disable hardware-level storm control
on the same port if configured by the
switchport packet-rate command.
Table 97: ATC Commands (Continued)
Command Function Mode
Storm Alarm
Fire TRAP
Alarm Fire
Threshold
（1～255kpps）
AlarmClear
Threshold
（1～255kpps）
Traffic
[kpps]
Time
Traffic without storm control
Traffic with storm control
Apply Timer
expired
(0～300sec)
Auto Storm Control
Release Timer
expired
(0～300sec)
Storm Alarm
Fire TRAP
StromAlarm
ClearTRAP
TrafficControl
Apply Trap
StromAlarm
ClearTRAP
TrafficControl
Release Trap
Storm Alarm
Fire TRAP
Alarm Fire
Threshold
（1～255kpps）
AlarmClear
Threshold
（1～255kpps）
Traffic
[kpps]
Time
Traffic without storm control
Traffic with storm control
Apply Timer
expired
(0～300sec)
Auto Storm Control
Release Timer
expired
(0～300sec)
Storm Alarm
Fire TRAP
StromAlarm
ClearTRAP
TrafficControl
Apply Trap
StromAlarm
ClearTRAP
TrafficControl
Release Trap