EXFO ETS-1000 - Manual (Page 81)

Configuring and Starting a Test
Ethernet Tester Analyzer 73
Loopback

Destination: Substitute Destination MAC Address value.

Src+Dst: Substitute both Source MAC Address and Destination
MAC Address values.

Source: Specify a MAC address that will substitute the Source MAC
Address of an Ethernet frame.

Destination: Specify a MAC address that will substitute the Destination
MAC Address of an Ethernet frame.

Replace VLAN: Select VLAN-tags substitution mode:

Off: VLAN-tags substitution is disabled

ID: Substitute VLAN ID values

Priority: Substitute VLAN priority values

ID+Pr: Substitute both VLAN ID and VLAN priority values

ID: Specify the value that will substitute VLAN ID of an Ethernet frame.

Priority: Specify the value that will substitute VLAN priority of an
Ethernet frame.