What Must Be Verified
Record manufacturer, model, firmware, port speeds, switching capacity, and the current configuration backup before making changes.
Document uplinks, trunks, LAGs, redundant paths, VLANs, and the existing STP/RSTP/MSTP policy. Never remove loop protection as a generic AoIP fix.
Confirm PTP version/profile/domain, leader-clock design, multicast flows, querier ownership, and whether IGMP features are actually required.
Review enterprise policy, monitoring, change control, rollback, and post-change tests with the network owner and current vendor documentation.