ECS4110-28T_Management Guide

Table Of Contents
C
HAPTER
9
| Congestion Control
Automatic Traffic Control
– 266 –
Figure 121: Configuring Storm Control
AUTOMATIC TRAFFIC CONTROL
Use the Traffic > Auto Traffic Control pages to configure bounding
thresholds for broadcast and multicast storms which can automatically
trigger rate limits or shut down a port.
CLI REFERENCES
"Automatic Traffic Control Commands" on page 785
COMMAND USAGE
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 122: 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.
Storm Alarm
FireTRAP
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
FireTRAP
StromAlarm
ClearTRAP
TrafficControl
ApplyTrap
StromAlarm
ClearTRAP
TrafficControl
Release Trap
Storm Alarm
FireTRAP
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
FireTRAP
StromAlarm
ClearTRAP
TrafficControl
ApplyTrap
StromAlarm
ClearTRAP
TrafficControl
Release Trap