EXFO FTB-860 - Page 240

Test Setup - Test Configurator, Timer, and System
228 FTB-700G/800 Series
S-OAM and MPLS-TP OAM
 Frame Size allows to enter the frame size. The frame size range for
Ethernet II frame format is as follows:
 S-OAM Mode: 64 to 1518
1
. The minimum frame size is adjusted
according to the frame structure and parameters selected. For
Frame Loss function, the frame size is not configurable and set to
the minimum value.
 MPLS-TP OAM Mode: Minimum and maximum values are as
follows. The minimum frame size is adjusted according to the
frame structure and parameters selected.
The following table lists each parameter that may affect the minimum
and maximum
1
frame size value.
1. For the Loopback function the maximum frame size is 16000 bytes for all rates at the exception of 10/100/1000Mbps
electrical interface which is 10000 bytes.
Test Function
MPLS-TP Mode
PW LSP Section
Loopback 68
a
to 16000
1
a. Add 4 bytes when the GAL check box is selected.
72 to 16000
1
68 to 16000
1
Test 68 to 1522 68 to 1522 64 to 1518
Frame Delay 68
ab
to 1522
b. Add 2 bytes when Tes t I D is selected as TLV Type.
72
b
to 1522 68
b
to 1518
Frame Loss
c
c. The frame size is not configurable and set to the minimum value.
68 68 64
Parameter Number of bytes to be added Apply to
802.3 SNAP 8 bytes Y.1731, MEF,
G.8113.1
VLAN 4 bytes per VLAN (up to 3 VLAN)