Risk & Communication
Risk Assessment
| Risk | Likelihood | Mitigation |
|---|---|---|
VLAN ID conflict with existing VLAN |
Low |
Verify |
Trunk pruning blocks VLAN propagation |
Medium |
Explicitly add VLAN to allowed list on each trunk (not relying on allow-all) |
ISE rule order causes incorrect VLAN assignment |
Low |
Position rule precisely, test with David before declaring complete |
DHCP scope not ready |
Medium |
Confirm scope exists before change window or have network team create it |
STP topology change impacts existing VLANs |
Low |
New VLAN addition does not trigger STP recalculation for existing VLANs |
Communication Plan
| When | Action |
|---|---|
2026-04-14 (day before) |
Email stakeholders: change window, expected impact (none to existing services), contact info |
2026-04-15 08:00 |
Begin implementation — Tony starts switch config, Evan prepares ISE |
2026-04-15 (during) |
Teams/Slack updates as each phase completes |
2026-04-15 11:00 |
Completion notification with validation results |
Approvals
| Role | Name | Approval |
|---|---|---|
Change Manager |
<CHANGE_MANAGER> |
[ ] Approved / [ ] Denied |
Network Manager |
<NETWORK_MANAGER> |
[ ] Approved / [ ] Denied |
Security / NAC Owner |
<SECURITY_OWNER> |
[ ] Approved / [ ] Denied |