Storm control (Traffic control) Analysis

Storm control (Traffic control) analysis storm control can control the bandwidth used by the traffic on the switch. Storm control can control the traffic bandwidth of multicast broadcast unicast. by defining an upper limit and a lower limit, storm control blocks the traffic that exceeds the upper limit until the traffic is restored to the lower limit, to resume normal forwarding. No traffic limit is imposed on the default Interface. When configuring the upper and lower limits, you can use the following standards to measure the bandwidth: 1. Percentage of the total bandwidth used by the interface 2. Number of packets passed per second (PPS) 3. When the number of BPS passed per second uses the interface bandwidth percentage, 100 percent indicates no limit, and 0 percent indicates that all traffic is limited when the threshold value is configured, the upper limit must be configured, you do not need to configure the lower limit. If no lower limit is configured, the lower limit uses the same value as the upper limit. When storm control is used to limit multicast traffic, if the multicast traffic exceeds the upper limit, all multicast traffic will be discarded, including OSPF and OSPF traffic, however, BPDU and CDP are not discarded. Storm control can be configured on physical interfaces and etherchannels. When using storm control, you can set the shutdown and trap actions when the traffic reaches the upper limit. By default, the interface changes to the err-disabled status, and no snmp trap Message is generated. Configure the storm control step: 1. Define the threshold value 2. Define the action taken when the threshold is exceeded.