Brocade FastIron Ethernet Switch Administration Guide - Manual (Page 346)

Message Level Notification
Message Local ICMP exceeds burst-max burst packets,
stopping for lockup seconds!!
Explanation The number of ICMP packets exceeds the burst-max threshold set by the
ip icmp burst command. The Brocade device may be the victim of a
Denial of Service (DoS) attack.
All ICMP packets will be dropped for the number of seconds specified by
the lockup value. When the lockup period expires, the packet counter is
reset and measurement is restarted.
Message Level Notification
Message Local TCP exceeds burst-max burst packets,
stopping for lockup seconds!!
Explanation The number of TCP SYN packets exceeds the burst-max threshold set by
the ip tcp burst command. The Brocade device may be the victim of a
TCP SYN DoS attack.
All TCP SYN packets will be dropped for the number of seconds specified
by the locku p value. When the lockup period expires, the packet counter is
reset and measurement is restarted.
Message
Level Notification
Message Local TCP exceeds num burst packets, stopping for
num seconds!!
Explanation Threshold parameters for local TCP traffic on the device have been
configured, and the maximum burst size for TCP packets has been
exceeded.
The first num is the maximum burst size (maximum number of packets
allowed).
The second num is the number of seconds during which additional TCP
packets will be blocked on the device.
NOTE
This message can occur in response to an attempted TCP SYN attack.
Message
Level Notification
Message MAC Authentication RADIUS timeout for mac_address
on port port_id
Syslog messages
346 FastIron Ethernet Switch Administration Guide
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