Management and Configuration Guide K/KA/KB.15.15

Syntax
show running-config
Displays the running-config file. The broadcast limit setting appears here if enabled. If the
setting is not also saved to the startup-config file, rebooting the switch returns broadcast limit
to the setting currently in the startup-config file.
Example
The following command enables broadcast limiting of 1% of the traffic rate on the selected port
on the switch:
HP Switch(int B1) # broadcast-limit 1
For a 1-Gbps port, this results in a broadcast traffic rate of 10 Mbps.
Configuring inbound rate-limiting for broadcast and multicast traffic
You can configure rate-limiting (throttling) of inbound broadcast and multicast traffic on the switch,
which helps prevent the switch from being disrupted by traffic storms if they occur on the rate-limited
port. The rate-limiting is implemented as a percentage of the total available bandwidth on the port.
The rate-limit command can be executed from the global or interface context, for example:
(HP_Switch_name#) interface 3 rate-limit bcast in percent 10
or
(HP_Switch_name#) interface 3
HP Switch(eth-3#) rate-limit bcast in percent 10
Syntax
rate-limit [ bcast | mcast ] in percent 0-100
[no]
rate-limit [ bcast | [mcast ]] in
Enables rate-limiting and sets limits for the specified inbound broadcast or multicast traffic. Only
the amount of traffic specified by the percent is forwarded.
Default: Disabled
Example
If you want to set a limit of 50% on inbound broadcast traffic for port 3, you can first enter interface
context for port 3 and then execute the rate-limit command, as shown in Figure 76. Only
50% of the inbound broadcast traffic will be forwarded.
Figure 76 Inbound broadcast rate-limiting of 50% on port 3
176 Port Traffic Controls