Sync Research Frame Relay Probe	Secure in-line probe, manages up to 100 PCVs for QoS and service level reporting.
Sync Research Frame Relay Access Device	Converges SNA, BSC, Async, IP/IPX applications into a QoS assured Frame Relay connection.
Technically Elite Frame Relay Probe	Recognises 'real' Offers applications regognition per PVC, details what users are using the Frame Relay for. Identifies volume users, bandwidth conflicts and operational problems.
Network Associates, Sniffer	Features comprehensive Frame Relay decodes in it's Sniffer WAN Suite.