Dhcp & bootp boot process, User’s guide, Battery management system – APC Battery Management System User Manual

Page 109

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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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