Technical data
Fabric OS FCIP Administrator’s Guide 45
53-1002474-01
Configuration steps
2
• ARL minimum and maximum rates are set per circuit. They must be the same on either end of
a circuit, but individual circuits may have different rates.
• You can configure standby circuits by assigning a metric. In the following example, circuit 2 is
used only when circuit 1 fails. Refer to “FCIP circuit failover capabilities” on page 17 for a
description of circuit failover and the use of standby circuits.
switch:admin> portcfg fcipcircuit 8/12 create 1 192.168.11.79 192.168.1.25 -b
15500 -B 62000
switch:admin> portcfg fcipcircuit 8/12 create 2 192.168.11.8 192.168.1.26 -b
15500 -B 62000 -x 1
• When multiple FCIP tunnels are present on a switch and additional circuits are added to an
active tunnel, some frame loss can occur for a short period of time because the internal Fibre
Channel frame routing tables in the switch are refreshing. Therefore, add additional circuits
only during low I/O periods on the FCIP tunnel being modified. In addition, if deleting or adding
a circuit increases or decreases the total tunnel bandwidth, then disable and re-enable the
tunnel (VE_Port) after deleting or adding the circuit. This will allow the switch to adjust internal
routes to fully utilize the new bandwidth.
Verifying the FCIP tunnel configuration on the Brocade 7800 FX8-24
After you have created local and remote FCIP configurations, verify that the FCIP tunnel and circuit
parameters are correct using the portshow fciptunnel command. Refer to the Fabric OS Command
Reference Manual for a description of the command syntax and output.
Enabling persistently disabled ports on the Brocade 7800 FX8-24
It is strongly recommended to disable ports while they are being configured to prevent unwanted
fabric merges.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the portCfgShow command to view ports that are persistently disabled.
3. After identifying the ports, enter the portCfgPersistentEnable command to enable the ports.
4. Enter the portCfgShow command to verify the port is persistently enabled.