CAB review
1
Draft or review changes
Healthcare account
CAB
Account manager Grace Wendell
Change Management / CAB
Scheduled
2
Approved change windows
Blackout conflicts
1
Needs reschedule or exception
Post-change due
1
Outcome review pending
CAB Calendar
| Start | End | Change | Approval | Risk / impact | Blackout |
|---|---|---|---|---|---|
| 08 July, 09:30 am | 08 July, 11:00 am | Parramatta core switch packet-loss remediation | approved | critical risk / medium impact | clear |
| 18 July, 10:00 am | 18 July, 01:30 pm | Sydney firewall refresh cutover | cab review | high risk / high impact | clear |
| 24 July, 08:00 am | 24 July, 09:00 am | MFA registration enforcement | scheduled | medium risk / medium impact | blackout conflict |
Change Queue
normal change
Sydney firewall refresh cutover
Replace the Sydney edge firewall before warranty expiry and migrate security profiles, VPN, and monitoring.
Grace Wendell requested | Network team implements | Daniel Brooks approves
cab reviewhigh riskhigh impact
Affected services
Internet edge, Site-to-site VPN, Remote access VPN
Rollback plan
Retain existing firewall powered and cabled for rollback; restore original WAN handoff, VPN configuration, and monitoring target if validation fails.
Stakeholder notice
Client communications and implementation window notification.
Post-change outcome
Outcome review, issues found, rollback, or success state after implementation.
emergency change
Parramatta core switch packet-loss remediation
Apply emergency switch remediation for packet loss affecting clinical access at Parramatta Practice.
Service Desk requested | Network team implements | Mia Chen approves
approvedcritical riskmedium impact
Affected services
Parramatta LAN, Clinical workstation access, Printing
Rollback plan
Restore prior switch configuration backup and move affected uplinks back to the original port-channel if packet loss increases.
Stakeholder notice
Client communications and implementation window notification.
Post-change outcome
Outcome review, issues found, rollback, or success state after implementation.
standard change
MFA registration enforcement
Enforce MFA registration for remaining users after reminder communications and manager review.
Nina Reeves requested | Security team implements | Mia Chen approves
scheduledmedium riskmedium impact
Affected services
Microsoft 365, User sign-in, Mobile app access
Rollback plan
Temporarily exclude affected user group from conditional access policy while helpdesk remediates registration issues.
Stakeholder notice
Client communications and implementation window notification.
Post-change outcome
Outcome review, issues found, rollback, or success state after implementation.
Blackout Dates And CAB Rules
CAB contacts / approvers
Grace Wendell, Network team, Daniel Brooks, Service Desk, Mia Chen, Nina Reeves, Security team
Payroll close
No Microsoft 365 or finance system changes after 24 July without client-owner exception.
Clinic hours
Network-impacting work must run outside clinic hours unless marked emergency and approved by client owner.
Rollback required
Normal and emergency changes must include a tested rollback path before implementation.
Post-change review
Implementation owner records outcome, issues, rollback state, and follow-up actions after the window closes.