Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 931)

Brocade 6910 Ethernet Access Switch Configuration Guide 881
53-1002581-01
ARP Inspection
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• Packet Rate Limit – Sets the maximum number of ARP packets that can be processed by CPU
per second on trusted or untrusted ports. (Range: 0-2048; Default: 15)
Setting the rate limit to “0” means that there is no restriction on the number of ARP packets
that can be processed by the CPU.
The switch will drop all ARP packets received on a port which exceeds the configured
ARP-packets-per-second rate limit.
Interface
To configure interface settings for ARP Inspection:
1. Click Security, ARP Inspection.
2. Select Configure Interface from the Step list.
3. Specify any untrusted ports which require ARP inspection, and adjust the packet inspection
rate.
4. Click Apply.
FIGURE 214 Configuring Interface Settings for ARP Inspection
Displaying ARP Inspection Statistics
Use the Security > ARP Inspection (Show Information - Show Statistics) page to display statistics
about the number of ARP packets processed, or dropped for various reasons.
CLI References
• “show ip arp inspection statistics” on page 236
Parameters
These parameters are displayed:
TABLE 167 ARP Inspection Statistics
Parameter Description
Received ARP packets before ARP
inspection rate limit Count of ARP packets received but not exceeding the ARP Inspection rate
limit.
Dropped ARP packets in the process
of ARP inspection rate limit Count of ARP packets exceeding (and dropped by) ARP rate limiting.