Setting The Port Persistence Time; Port Fencing; Table 20 Port Fencing Class And Subclass Areas - Brocade Communications Systems StoreFabric SN6500B Administrator's Manual

Setting the port persistence time

Port persistence is used to transition a port into a marginal status. Fabric Watch does not record
the event until the event persists for a length of time equal to the port persistence time. If the port
returns to normal boundaries before the port persistence time elapses, Fabric Watch does not
record the event.
The port persistent time is measured in seconds and can be configured. Configuring the port
persistence time to zero disables this feature. The default value for port persistence is 18 seconds.
1. Use the fwSet --port -persistence command to set the port persistence time.
2. Set the port persistence time.

Port fencing

Port fencing monitors ports for erratic behavior and disables a port if specified error conditions are
met. You can customize the thresholds and configure the ports to report errors for one or more
areas using the portThConfig command. After the ports are configured, you can enable port fencing
for specific areas of the physical ports, E_Ports, FOP_Ports, and FCU_Ports using the portFencing
command. Port fencing is not supported on VE_Ports.
Table 20
FOP_Port, and FCU subclasses. Port fencing is not supported for Loss of Sync (LOS) and Link
Failure (LF) areas.
NOTE
Port fencing configuration on the VE_Port is not supported on the Brocade DCX extension blade.
TABLE 20
Port type
Physical ports
FOP_Ports
E_Ports
EX_Ports
Fabric Watch Administrator's Guide
53-1002752-01
switch:admin> portthconfig
--
switch:admin> fwSet
shows the areas that support port fencing for the different physical port class and E_Port,
Port fencing class and subclass areas
--
show [port_type]
port -persistence seconds
Areas supported for port fencing
Cyclic Redundancy Checks (CRC)
Invalid Transmission Words (ITW)
Link Reset (LR)
Protocol Error (PE)
State Change (ST)
Class 3 Discard Frames (C3TXO)
Cyclic Redundancy Checks (CRC)
Invalid Transmission Words (ITW)
Link Reset (LR)
Protocol Error (PE)
State Change (ST)
Class 3 Discard Frames (C3TXO)
Cyclic Redundancy Checks (CRC)
Invalid Transmission Words (ITW)
Link Reset (LR)
Protocol Error (PE)
State Change (ST)
7
Port fencing
69