GE ML1200 instruction manual Broadcast Storms, Broadcast Storm menu

CHAPTER 9: PORT MIRRORING AND SETUP PORT MIRRORING AND SETUP

9.4.3Broadcast Storms

One of the best features of the MultiLink ML1200 Managed Field Switch is its ability to keep broadcast storms from spreading throughout a network. Network storms (or broadcast storms) are characterized by an excessive number of broadcast packets being sent over the network. These storms can occur if network equipment is configured incorrectly or the network software is not properly functioning or badly designed programs (including some network games) are used. Storms can reduce network performance and cause bridges, routers, workstations, servers and PCs to slow down or even crash.

The ML1200 is capable of detecting and limiting storms on each port. A network administrator can also set the maximum rate of broadcast packets (frames) that are permitted from a particular interface. If the maximum number is exceeded, a storm condition is declared. Once it is determined that a storm is occurring on an interface, any additional broadcast packets received on that interface will be dropped until the storm is determined to be over. The storm is determined to be over when a one-second period elapses with no broadcast packets received.

Broadcast storm protection can be configured through the Configuration > Port >

Broadcast Storm menu.

ZTo edit the threshold level, click on the edit icon as seen below.

MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL 9–15