EXFO FTB-8500 Series for FTB-500 - Manual (Page 231)

Stream Generation Tabs
Ethernet and Fibre Channel Application 217
PBB-TE
Destination

B-MAC Address: Enter the destination Backbone MAC address for the
selected stream. The default setting is 00:00:00:00:00:00.

I-TAG (Backbone Service Instance Tag)
SID (Service Instance Identifier): Enter the I-TAG SID which identifies
the backbone service instance of the selected stream. Choices are 0
through 16777215. The default setting is 256.
Priority: Select the B-VLAN user Priority Code Point (PCP). Choices are
0 to 7. The default setting is 0 (000 - Low).
Drop Eligible: When the Drop Eligible check box is selected
(DEI = 1), these transmitted frames will be dropped first on receipt
when congestion occurs under test. This setting is disabled by default.

B-VLAN (Backbone Virtual Local Area Network)
ID: Enter the B-VLAN identifier. Choices are 0 through 4095. Refer to
VLAN/B-VLAN on page 476 for more information.
Priority: Select the B-VLAN user Priority Code Point (PCP). Choices are
0 to 7; refer to VLAN/B-VLAN on page 476 for more information. The
default setting is 0 (000 - Low).
Drop Eligible: When the Drop Eligible check box is selected
(DEI = 1), these transmitted frames will be dropped first on receipt
when congestion occurs under test. This setting is disabled by default.