3Com 3CBLSF26PWRH User Manual

Also see for 2226-SFP Plus: Installation and user guide

Contents

3-74Item DescriptionCurrent Port StateDisplays the current state of the port.z NORMAL: The user on the port passed the authentication.z BLOCK: The port is in the initial state after the LDB feature isenabled or the port is aged out.z SLEEP: The number of the user’s authentication attemptsexceeded the preset maximum value.User Displays the user passing the authentication.MAC Displays the MAC address of the user passing the authentication.Configuring Broadcast Storm ControlBroadcast Storm Control limits the amount of Multicast and Broadcast frames accepted and forwardedby the switch. When Layer 2 frames are forwarded, Broadcast and Multicast frames are flooded to allports on the relevant VLAN. This occupies bandwidth, and loads all nodes on all ports.A Broadcast Storm is a result of an excessive amount of broadcast messages simultaneouslytransmitted across a network by a single port. Forwarded message responses are heaped onto thenetwork, straining network resources or causing the network to time out.Broadcast Storm is enabled for all Gigabit ports by defining the packet type and the rate the packets aretransmitted. The system measures the incoming Broadcast and Multicast frame rates separately oneach port, and discards the frames when the rate exceeds a user-defined rate.Packet threshold is ignored if Broadcast Storm Control is disabled.This section contains the following topic:z Defining Broadcast Storm Controlz Viewing Broadcast Storm ControlDefining Broadcast Storm ControlThe Broadcast Storm Setup Page allows network managers to define Broadcast Storm Traffic.Click Device > Broadcast Storm > Setup. The Broadcast Storm Setup Page opens.Figure 3-81 Broadcast Storm Setup PageThe Broadcast Storm Setup Page contains the following fields: