Software Implications Of Replacing Line Cards - Allied Telesis AT-8400 Series Reference Manual

Installing and Removing Line Cards

Software Implications of Replacing Line Cards

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The AT-S60 software allows you to remove and replace, or hot swap, line
cards in the AT-8400 Series switch while preserving your software
configuration. The hot swap procedure is discussed in
Card on page 74. You can hot swap line cards and preserve your
software configuration while using a local, Telnet, or Web browser
management session.
In general, replacing a line card with a line card of the same type allows
you to preserve your software configuration. However, if you remove a
line card and replace it with a different type of line card, you will lose
your configuration.
There are three possible scenarios when removing and replacing a line
card:
❑ Remove a line card and replace it with the same line card or a line
card of the same type. For example, you remove an AT-8411 line
card and replace it with another AT-8411 line card. In this case, all
software configuration changes are preserved.
❑ Remove a line card and replace it with a line card of a different
type. For example, you remove an AT-8411 line card and replace
it with an AT-8413 line card. In this case, the software
configuration pertaining to the AT-8411 line card is saved in the
database. At the same time, the switch recognizes the AT-8413
line card and loads the default configuration into RAM. However,
if you select Save Configuration changes on the Main Menu, the
AT-8411 line card configuration is lost and the default
configuration for the AT-8413 line card is saved in the database.
❑ Remove a line card and do not replace it. In this case, the software
configuration changes are retained. However, certain features
may not be active.
Software configuration changes are retained on the AT-8401
management card. After you remove a line card from the chassis, the
software configuration is preserved. If you replace the line card with a
line card of the same type, the software configuration is reactivated with
the new line card. However, if you replace the line card with a line card of
a different type and then click Save Configuration changes on the
Main Menu, the software configuration is lost.
Removing a Line