Configuration Guide User guide

FastIron Configuration Guide 269
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Configuring an ICX 6430 and ICX 6450 IronStack
1. Ports of the same trunk connect to different units.
2. Ports of the same trunk connect to different trunks of the same unit.
3. One end of a 10G port is up and the other end is down.
4. Communication problems between units of the stack
Another connection error is that the two cables of a trunk go to different units, or to different trunks
of the same unit as in case 1 and 2. Stack might still form in these cases. But it may cause internal
forwarding loop, or have forwarding problem.
Cases 3 to 5 are due to hardware failures or software problems.
Error messages encountered during the configuration of an
ICX 6430 or ICX 6450 IronStack
The following error messages may occur when configuring an ICX 6430 or ICX 6450 IronStack:
• In you form a multi-trunk connection on two sets of stack ports that are not directly connected
on neighboring units, the multi-trunk command is rejected and an error message is displayed.
The following is an example of an error message.
Error- 1/2/3 and 1/2/4 are not connected; please use directly connected
stack-ports to form stack-trunks.
• When an unit joins or leaves a stack, or a stack trunk is configured using the stack-trunk
command, a stack election is triggered. The multi-trunk command triggers a stack election
among the stack units and reprograms (or removes) the stack trunk port in the hardware. A
timer is set on all units to coordinate a stack election. The traffic interruption time generally
takes less than 5 seconds for the system to detect the port down event and reprogram HW. You
must wait for the stack election to be completed before entering another command. If you do
not wait for the stack election to finish, the following warning message is displayed.
Stack port or trunk change is in progress, please try later.
You cannot enter the stack-switchover command until the stack election is completed. You can
enter the stack-switchover command following the multi-trunk command configuration. If you
enter the stack-switchover command before the stack election is completed, the following
warning message is displayed.
Please try later, reason: during stack port or trunk deployment.
• If ports 2 and 4 of the ICX 6450-24 device are not configured to 10 Gbps port speed, then the
multi-trunk command and the stack-trunk command are rejected with the following error
message.
Error! port 1/2/2 is not configured as 10G
You must first enable the port to 10 Gbps port speed using the speed-duplex 10g-full
command. For more information about configuring ports to 10 Gbps port speed, refer to
“Licensing for Ports on Demand” on page 208.
• You cannot use the stack-port command to remove a stacking port if the port is part of a stack
trunk. You must first remove the stack trunk and then remove the stack port. Use the
stack-trunk command or the multi-trunk command to remove the stack trunk. If you attempt to
remove the stack port before removing the stack trunk, an error message is displayed. The
following is an example of an error message.