Chapter 30: Congestion Control Commands
Automatic Traffic Control Commands
– 987 –
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 30-1: 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.
Sends a trap when broadcast traffic falls
beneath the lower threshold after a storm
control response has been triggered and the
release timer expires
IC (Port)
Sends a trap when multicast traffic falls beneath
the lower threshold after a storm control
response has been triggered
IC (Port)
Sends a trap when multicast traffic exceeds the
upper threshold for automatic storm control
IC (Port)
Sends a trap when multicast traffic exceeds the
upper threshold for automatic storm control and
the apply timer expires
IC (Port)
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
Shows global configuration settings for
automatic storm control
PE
Shows interface configuration settings and
storm control status for the specified port
PE
a. Enabling automatic storm control on a port will disable hardware-level storm control on
the same port if configured by the
command.
Table 30-4: 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
Summary of Contents for SSE-G2252
Page 42: ...44 General IP Routing on page 627...
Page 603: ...Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 609...
Page 883: ...Chapter 24 General Security Measures Port based Traffic Segmentation 894...
Page 989: ...Chapter 30 Congestion Control Commands Automatic Traffic Control Commands 1000 Console...
Page 1007: ...Chapter 33 Address Table Commands 1019...
Page 1137: ...Chapter 38 Quality of Service Commands 1150...