EXFO FTB-8500 Series for FTB-500 - Manual (Page 185)

Traffic Analyzer Tabs
Ethernet and Fibre Channel Application 171
Higher Layers
MPLS
Note: MPLS is only availabe when enabled from the test setup.
Frame Count: Indicates repectively the count of transmitted (TX) and
received (RX) MPLS EtherType (0x8847 or 0x8848) frames regardless if FCS
is good or not.
RX Throughput

Bandwidth: Gives the receiving MPLS data rate expressed in Mbps.

Utilization: Gives the percentage of MPLS line rate utilization.

Frame Rate: Gives the receiving number of MPLS frames (including
bad frames, )in fps (Frame Per Second).