APC Battery Management System manual Dhcp & Bootp boot process, See Management Card settings

Battery Management System

USER’S GUIDE

®

DHCP & BOOTP boot process

When Boot mode is set to its default DHCP & BOOTP setting, the following occurs when the Management Card is turned on or reset:

1.The Management Card makes up to five requests for its network assignment from any BOOTP server. If a valid BOOTP response is received, the Management Card starts the network services and sets Boot mode to BOOTP Only.

2.If the Management Card fails to receive a valid BOOTP response after five BOOTP requests, the Management Card makes up to five requests for its network assignment from any DHCP server. If a valid DHCP response is received, the Management Card starts the network services and sets Boot mode to DHCP Only.

To configure the Management Card that the Battery Management System master controller contains so that it always uses the DHCP & BOOTP setting for Boot mode, enable the option Remain in DHCP & BOOTP mode after accepting TCP/IP settings, which is disabled by default.

See Management Card settings.

3.If the Management Card fails to receive a valid DHCP response after five DHCP requests, it repeats sending BOOTP and DHCP requests until it receives a valid network assignment: first it sends a BOOTP request every 32 seconds for 12 minutes, then it sends one DHCP request with a time-out of 64 seconds, and so forth.

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