APC Battery Management System User Manual download pdf (Page 109)

USER’S GUIDE

Battery Management System

102

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.

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.

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.

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APC Battery Management System User Manual Page 109