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Environment/Versions Spirent TestCenter Analyzer Preload Analyzer Filters Answer The Analyzer has two types of filters Template filters and Custom filters  Analyzer Preload feature can be used with an Analyzer Template but only on the first “vlan-id” filter. Custom Filter is not supported with Analyzer Preload CR: 335207499 was open for additional filters to work but it has been declined. CR: 518517362 open to support dual vlans using the Analyzer Template filter. Work around is to use the Custom filters when facing dual vlans which may appear to work but you will see a message in the logs indicating Analyzer Preload is skipped. This means Analyzer Preload is not being used. This causes the "Is Expected" field to not work properly. Work around is to us Stray Frame collection instead of "Is Expected".