Enabling BUM Suppression Logging

Complete the following steps to enable BUM suppression logging.

Note: Rate limiting must be enabled.

Enter global configuration mode.
```
device# configure terminal
```

Enter Ethernet interface configuration mode.
```
device(config)# interface ethernet 1/1/1
```

Enable rate limiting.
```
device(config-if-e10000-1/1/1)# broadcast limit 8388607 
```
Broadcast is used in this example. The command syntax is same for multicast or unknown unicast with the corresponding command (multicast or unknown-unicast).

Enable logging when the specified limit is exceeded.
```
device(config-if-e10000-1/1/1)# broadcast limit 100 kbps log
```
Broadcast is used in this example. The command syntax is same for multicast or unknown unicast with the corresponding command (multicast or unknown-unicast).

Use the threshold option for the broadcast limit to shut down the port and generate the syslog.
```
device(config-if-e10000-1/1/1)# broadcast limit 100 kbps threshold 1000 action port-shutdown
```
The following example shuts down the port for 300 seconds (default) when the packet drop threshold value exceeds 1000 Kbps.
```
device(config)# interface ethernet 1/2/1
device(config-if-e10000-1/2/1)# unknown-unicast limit 100 kbps threshold 1000 action port-shutdown
```

Globally configure the log interval.

device(config)# rate-limit-log 6 
device(config)# exit

Verify the logging interval.

device(config)# show running-config | include rate-limit-log
 rate-limit-log 6

Verify the configuration.

device# show logging | include 1/1/1
Jan 13 12:02:12:I:Security: Interface ethernet 1/1/1 reached the Broadcast traffic limit and 1434 kB are dropped

Enabling BUM Suppression Logging Configuration Example

device# configure terminal
device(config)# interface ethernet 1/1/1
device(config-if-e10000-1/1/1)# broadcast limit 8388607
device(config-if-e10000-1/1/1)# broadcast limit 100 kbps log
device(config-if-e10000-1/1/1)# broadcast limit 100 kbps threshold 1000 action port-shutdown
device(config)# rate-limit-log 6
device(config)# show running-config | include rate-limit-log
device(config)# exit
device# show logging | include 1/1/1

RUCKUS FastIron QoS and Traffic Management Configuration Guide, 10.0.20 53-1005808-05

Enabling BUM Suppression Logging

Enabling BUM Suppression Logging Configuration Example