Sybase DR setup using log shipping

Hello Experts,

Could you please explain me steps to configure the log shipping procedure for sybase in details.

i know there is a standard SAP note 1650511 which contains scripts as well.

My present OS is RHEL 6.2 and sybase 15.7

We are maintaining the DR server within LAN for a distance of 2 km at different location.

Also i have a few questions in my mind,

1.what happens when there is some network disconnection

for about 20 hours (or) about 3 days with DR server (standby system)?

2.what are the major pre-requisites to be taken care before the DR drill?

3.In future after one year we want to use standby server as a primary server as

hardware is good enough in DR server compared to Primary?

Thanks in Advance.