User`s guide

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USER’S GUIDE AUTOMATIC TRANSFER SWITCH
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• Three settings are available for all Boot mode selections, except
Manual, to identify the Automatic Transfer Switch in BOOTP or DHCP
communication:
– Vendor Class: Uses APC, by default.
– Client ID: Uses the Automatic Transfer Switch’s MAC address, by
default.
.
– User Class: Uses the Automatic Transfer Switch’s application
module type, by default. For example, the Automatic Transfer
Switch module sets the User Class to ATS.
• Two settings are available when BOOTP only is the Boot mode
selection:
– Retry Then Fail: Defines how many times the Automatic Transfer
Switch will attempt to discover a BOOTP server before it stops (4, by
default).
– On Retry Failure: Defines what TCP/IP settings will be used by the
Automatic Transfer Switch when it fails to discover a BOOTP server
(Use Prior Settings, by default).
Caution
If Client ID is changed from the Automatic Transfer Switch’s
MAC address, the new value must be unique on the LAN.
Otherwise, the DHCP or BOOTP server may act incorrectly.
For information about the Advanced settings (DHCP Cookie
Is and Retry Then Stop) that directly affect how DHCP is
used, see Boot Mode.