Storm Control - Cisco SLM224G4S Administration Manual

Security

Storm Control

STEP 3
Storm Control
Cisco Small Business SLM Series Smart Switches Administration Guide
Click Save Settings. The settings are modified, and the device is updated.
Storm Control enables limiting the amount of Multicast and Broadcast frames
accepted and forwarded by the device. When frames are forwarded, Broadcast
and Multicast frames are flooded to all ports on the relevant VLAN. This occupies
bandwidth, and loads all nodes connected on all ports.
A Broadcast Storm is a result of an excessive amount of broadcast messages
simultaneously transmitted across a network by a single port. Forwarded
message responses are heaped onto the network, straining network resources or
causing the network to time out.
Storm Control is enabled by defining the packet type to apply the rate limit and the
rate the packets are transmitted. The system measures the incoming Broadcast or
Broadcast and Multicast frame rates on each port and discards the frames when
the rate exceeds a user-defined rate.
Storm Control
The window provides fields for configuring Broadcast and Multicast
Storm Control.
Storm Control
To open the window:
5
42