configure ports rate-limit flood
configure ports [port_list | port_group]rate-limit
flood [broadcast | multicast | unknown-destmac] [no-limit | pps {out-actions [{log} {trap} {disable-port}]}]]
Description
Limits the amount of ingress flooded traffic; minimizes network impact of broadcast
loops.
Syntax Description
|
port_list
|
Specifies the port number. On
a stand-alone switch, this value is just the port number, and on a
modular switch, this value is the slot and port number. |
| port_group |
Port group name. |
|
broadcast
|
Specifies all broadcast
packets. |
|
multicast
|
Specifies all flooded
multicast packets (known IP multicast caches are still forwarded at
line rate). |
|
unknown-destmac
|
Specifies all packets with
unknown MAC DAs. |
|
no-limit
|
Specifies unlimited
rate. |
|
pps
|
Packets per second allowed;
range is from 0 to 262,144. |
| out-actions |
Out-of-profile action. |
| log |
Generate log event if traffic exceeds
configured rate. |
| trap |
Generate SNMP trap if traffic exceeds
configured rate. |
| disable-port |
Disable the underlying port when traffic
exceeds configured rate. |
|
Usage Guidelines
Use this command to limit the amount of ingress flooding traffic and to
minimize the network impact of broadcast loops.
Note
When the
multicast keyword is used, both known and unknown multicast traffic
will be rate limited.
To display results, use the show ports rate-limit
flood command.
Example
The following example rate limits broadcast packets on port 3 on a
stand-alone switch to 500 pps:
configure ports 3 rate-limit flood broadcast 500
History
This command was
available in ExtremeXOS 11.1.
The out-actions, log,
trap, disable-port, and port_group options were added in
ExtremeXOS 16.1.
Platform Availability
This
command is available on the BlackDiamond X8, BlackDiamond 8800 series
switches, SummitStack, and the Summit family of switches.
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