Brocade Communications Systems RFS6000 System Reference Manual page 383

4. The L2 tab contains the following information:
Brocade Mobility RFS6000 and RFS7000 System Reference Guide
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Interface Name
Displays the interface associated with the Layer 2 firewall. Available Layer 2
interfaces are ge 1-8 and up1.
ARP Rate Displays the Address Resolution Protocol (ARP) rate. Rates can be between 1 and
1000000
DHCP Trust
Displays the DHCP trust status for the selected L2 interface. Any DHCP packets
from a DHCP server connected to the selected interface is considered trusted.
These DHCP packets are used to update the DHCP Snoop Table to prevent IP
spoof attacks. By default all physical interfaces are DHCP trusted. Onboard DHCP
server is also trusted as the controller's local port is always trusted. When DHCP
trust is enabled, a green checkmark is displayed. when disabled, a red 'X' is
displayed.
ARP Trust Displays the ARP trust status for the selected L2 interface. Trusted ARP packets
are also used to update the DHCP Snoop Table to prevent IP spoof and
arp-cache-poisoning attacks. By default, none of the physical or aggregate
interfaces are ARP trusted.
Broadcast Storm
Displays the Broadcast Storm Threshold for each interface. When the rate of
Threshold broadcast packets exceeds the high threshold configured for an interface, packets
are throttled till the rate falls below the configured rate. Thresholds are configured
in terms of packets per second. The threshold range is 1-1000000 packets per
second.
Configuring firewalls and access control lists
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