ProLiant BL e-Class C-GbE Interconnect Switch Web-based Interface Reference Guide

Configuring the Switch Modules using the Web-based Interface
Configuring the Thresholds of Broadcast, Multicast, and DA-Unknown Storm
Prevention or Monitoring
The switch module allows you to set the threshold (in packets per second) for three types of
storms: broadcast, multicast, and one where the packet destination address (DA) is unknown.
The higher the threshold, the more packets the switch module can accept per second. If the
threshold is exceeded, any additional packets received are dropped. Entering a low value
means packets have a greater chance to exceed the threshold and be dropped from the switch
module.
To configure the thresholds of broadcast, multicast, and unknown storm prevention or
monitoring:
1. Select Threshold of Broadcast from the Configuration menu. The following screen is
displayed.
2. Select Enabled for the appropriate option.
3. Type a threshold value in the Threshold(Pkts/sec) field.
4. Click Apply to save the changes.
IMPORTANT: To save the configuration settings permanently, you must enter them into NVRAM
using the Save Changes option on the Maintenance menu. Refer to the section, “Saving
Changes,” earlier in this chapter.
Configuring Class of Service, Default Port Priority, and Traffic
Class
This section describes how to configure class of service, default port priority, and traffic
class. For information on how to set the class of service queue options, refer to the
“Configuring Advanced Switch Module Features” section earlier in this chapter.
Class of Service (CoS) for packet prioritization allows you to set priority levels on the switch
module for forwarding packets based on the priority setting information in the packets. The
switch module supports four classes (0-3) of traffic (buffers or queues) for implementing
priority and allows eight priority levels (0-7) to be mapped to the four classes. Traffic from a
specific server port can be given priority over packets from other devices according to the
range of priority levels.
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