Netgear M5300-52G3 Web Management User Guide - Page 412
Storm Control, Global Flow Control IEEE 802.3x Mode
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ProSafe M5300 Switch Storm Control A broadcast storm is the result of an excessive number of broadcast messages simultaneously transmitted across a network by a single port. Forwarded message responses can overload network resources and/or cause the network to time out. The switch measures the incoming broadcast/multicast/unknown unicast packet rate per port and discards packets when the rate exceeds the defined value. Storm control is enabled per interface, by defining the packet type and the rate at which the packets are transmitted. The Storm Control folder contains links to the following features: • Storm Control Global Configuration on page 412 • Storm Control Interface Configuration on page 413 Storm Control Global Configuration To display the Storm Control Global Configuration page, click Security Traffic Control> Storm Control Storm Control Global Configuration. The following four control radio buttons provide an easy way to enable or disable each type of packets be rate-limited on every port in a global fashion. The effective storm control state of each port can be viewed by going to the port configuration page. • Global Flow Control (IEEE 802.3x) Mode - Enable or disable this option by selecting the corresponding line on the radio button. The factory default is disabled. • Broadcast Storm Control All - Enable or disable the Broadcast Storm Recovery mode on all ports by clicking the corresponding radio button. When you specify Enable for Broadcast Storm Recovery and the broadcast traffic on any Ethernet port exceeds the configured threshold, the switch blocks (discards) the broadcast traffic. The factory default is enabled. • Multicast Storm Control All - Enable or disable the Multicast Storm Recovery mode on all ports by clicking the corresponding radio button. When you specify Enable for Multicast Storm Recovery and the multicast traffic on any Ethernet port exceeds the configured threshold, the switch blocks (discards) the multicast traffic. The factory default is disabled. • Unknown Unicast Storm Control All - Enable or disable the Unicast Storm Recovery mode on all ports by clicking the corresponding radio button. When you specify Enable for Unicast Storm Recovery and the Unicast traffic on any Ethernet port exceeds the configured threshold, the switch blocks (discards) the unicast traffic. The factory default is disabled. Managing Device Security 412