EXFO FTB-8500 Series for FTB-500 - Manual (Page 222)

Stream Generation Tabs
208 FTB-8500 Series and FTB-8120NGE/8130NGE
Stream Configuration
For Video:

Video Codec: Choices are SDTV (MPEG-2), HDTV (MPEG-2), and
HDTV (MPEG-4). Only SDTV (MPEG-2) is available with the 10 Mbps
interface. The default setting is SDTV (MPEG-2).

Nb Channels: Allows the selection of the equivalent number of
channels that will be generated for the selected stream. The default
setting is 1.
Frame Configuration
Note: Only data link frame size is available with BERT - Framed Layer 1 test.

Data Link: Select the data link type (layer 2). Choices are Ethernet II,
PBB-TE/Ethernet II, 802.3 SNAP, and PBB-TE/802.3 SNAP.
Note: Network, and Transport are not available with RFC 2544 test. Only data
link frame size is available with BERT - Framed Layer 1 test.

Network: Select the network traffic type (layer 3). Choices are:

When the test interface is set to IPv4: IPv4, MPLS/None,
MPLS/IPv4, and None. MPLS/None, and MPLS/IPv4 are only
available when MPLS is enabled. The default setting is IPv4 when
MPLS is not enabled and MPLS/IPv4 when MPLS is enabled.

When the test interface is set to IPv6: IPv6, MPLS/None,
MPLS/IPv6, and None. MPLS/None, and MPLS/IPv6 are only
available when MPLS is enabled. The default setting is IPv6 when
MPLS is not enabled and MPLS/IPv6 when MPLS is enabled.
Note: When the stream profile is set to either voice or video, Network is
automatically set to IPv4 or IPv6.