Redundant Management Switch Cards; Management Lockout; A Line Card Does Not Become Active - ZyXEL Communications MSC1024G Series User Manual

Chapter 39 Troubleshooting

39.5 Redundant Management Switch Cards

I cannot get a redundant (second) management switch card to work as a
standby.
1 Make sure that the management switch cards are in slots 1 and 2 of the IES-5000 main
chassis or slots 8 and 9 of the IES-6000 main chassis. The two management switch cards
must have the same types of uplink and subtending connections.
2 Make sure that the management switch cards both have the same firmware version.

39.6 Management Lockout

You could lock yourself (and all others) out from the MSC by:
1 Misconfiguring the text configuration file.
2 Forgetting the password.
3 Misconfiguring the management IP address.
4 Misconfiguring the management VLAN ID.
5 Misconfiguring the management PVC for IMA line cards.
Be careful not to lock yourself and others out of the MSC.
It is highly recommended that you use the sys reboot <seconds>
command before using any settings or commands that may lock you out from
managing the device. Use the sys reboot cancel command to cancel the
scheduled reboot when you are sure you have the correct configuration.
Otherwise, the device will restart and resume using the settings last saved
before using the sys reboot command.

39.7 A Line Card Does Not Become Active

A line card is stuck in the inactive state.
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MSC1000G/1024G/1224G Series User's Guide