QUICK ANSWER
BSB handles significant domestic connecting traffic, so keep the official flight board open.
01
Ticket protection matters
One-ticket connections and self-transfers are different problems.
02
Build a walking/security margin
Do not use scheduled layover minutes as if every minute is usable.
✓
Sources and verification
Time-sensitive airport, airline, visa, security and transport details should always be confirmed with the relevant official source before travel.