Brocade Network Advisor SAN User Manual v11.1x (53-1002167-01, May 2011)

Brocade Network Advisor IP User Manual 679
53-1002168-01
Chapter
22
Port Fencing
In this chapter
•About port fencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 679
•Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 680
•Adding thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 683
•Removing thresholds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 703
About port fencing
Port Fencing allows you to protect your SAN from repeated operational or security problems
experienced by ports. Use Port Fencing to set threshold limits for the number of specific port events
permitted during a given time period on the selected object.
Port Fencing objects include the SAN, Fabrics, Directors, Switches (physical), Virtual Switches,
Ports, as well as Port Types (E_port, F_port, and FX_port). Use Port Fencing to directly assign a
threshold to these objects. When a switch does not support Port Fencing, a “No Fencing Changes”
message displays in the Threshold field in the Ports table.
If the port detects more events during the specified time period, the device firmware blocks the
port, disabling transmit and receive traffic until you investigate, solve the problem, and manually
unblock the port.
Physical fabrics, directors, switches, port types, and ports display when you have the privileges to
manage that object and are indicated by the standard product icons.
NOTE
Port Fencing displays any existing thresholds discovered on manageable fabrics, directors, and
switches running firmware versions M-EOS 9.X or Fabric OS 6.2 or later.
Port Fencing requirements
To configure port fencing, the following requirements must be met:
• All Fabric OS devices must have Fabric Watch and must be running firmware Fabric OS 6.2 or
later.
• All M-EOS devices must be running firmware M-EOS 9.X or later.
• All M-EOS devices must be discovered directly using MPI.