Rate Limitation; Storm Control; Cli Configuration - Tripp Lite NGI-M08C4POE8-2 Owner's Manual

6.1.2

Rate Limitation

6.1.2.1 Storm Control

A broadcast storm means that your network is overwhelmed with constant broadcast or multicast
traffic. Broadcast storms can eventually lead to a complete loss of network connectivity as the
packets proliferate.
Storm Control protects the Switch bandwidth from flooding packets, including broadcast
packets, multicast packets, and destination lookup failure (DLF). The Rate is a threshold that
limits the total number of the selected type of packets. For example, if the broadcast and multicast
options are selected, the total amount of packets per second for those two types will not exceed
the limit value.
Broadcast storm control limits the number of broadcast, multicast and unknown unicast (also
referred to as Destination Lookup Failure or DLF) packets the Switch receives per second on the
ports. When the maximum number of allowable broadcast, multicast and unknown unicast
packets is reached per second, the subsequent packets are discarded. Enable this feature to reduce
broadcast, multicast and unknown unicast packets in your network.
Storm Control unit: 652pps.

6.1.2.1.1 CLI Configuration

Node
enable show storm-control
enable configure terminal
configure storm-control rate RATE_LIMIT
type (bcast | mcast | DLF |
bcast+mcast | bcast+DLF |
mcast+DLF | bcast+mcast+DLF)
ports PORTLISTS
configure no storm-controltype (bcast | mcast |
DLF | bcast+mcast | bcast+DLF |
mcast+DLF | bcast+mcast+DLF)
ports PORTLISTS
Example:
L2SWITCH#configure terminal
L2SWITCH(config)#storm-control rate 1 type broadcast ports 1-6
L2SWITCH(config)#storm-control rate 1 type multicast ports 1-6
L2SWITCH(config)#storm-control rate 1 type DLF ports 1-6
Command
69
Description
This command displays the current
storm control configurations.
This command changes the node to
configure node.
This command enables the bandwidth
limit for broadcast or multicast or DLF
packets and set the limitation.
This command disables the bandwidth
limit for broadcast or multicast or DLF
packets.