Fabric Watch Administrator's Guide v7.0.0 (53-1002153-01, April 2011)

72 Fabric Watch Administrator’s Guide
53-1002153-01
Port fencing
7
Enabling port fencing
1. Connect to the switch and log in as admin.
2. Configure port thresholds. Information about how to configure port thresholds is detailed in
Chapter 7, “Port Monitoring”.
3. Enter the portFencing --enable command. For example, to configure port fencing on an
FOP_Port for the Class 3 discard frame area:
portFencing --enable fop-port -area C3TX_TO
Disabling port fencing
Use the --disable option to disable port fencing for the specified areas on all ports of the specified
port types. Use the --show option to display the configuration. The display includes the configured
port types, error types, and port fencing status (disabled or enabled). Port fencing is disabled by
default.
1. Connect to the switch and log in as admin.
2. Enter the portFencing --disable command. For example, to disable port fencing on an FOP_Port
for the Link Reset area:
portFencing --disable fop_port -area LR
Port fencing configuration using DCFM
The Data Center Fabric Manager (DCFM) management application supports port fencing. 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.
Port fencing requirements
To configure port fencing using the DCFM management application, all Fabric OS devices must
have Fabric Watch and must be running firmware Fabric OS 6.2 or later.
Port fencing threshold areas supported on DCFM
You can add, edit, view, or remove thresholds on the following area types using DCFM. You can then
assign the thresholds to available objects in the DCFM tree.
Port fencing threshold areas include the following:
• C3 Discard Frames (Fabric OS only)
• Invalid CRCs (Fabric OS only)
• Invalid Transmission Words (Fabric OS only)
• Link (M-EOS only)