Chapter 8. Packet Manager
61200305L1-1 ATLAS 550 User Manual 8-9
I
N
-B
AND
S
EQUENCE
N
UMBER
All packets on this PVC will get a numbered tag so that ADTRAN IQ
products can detect lost packets in the frame relay network. Turn this
option ON only if there is an ADTRAN IQ-capable product on the other
end of the PVC.
R
EMOTE
FECN N
OTIFICATION
If FECN is received on the interface, a notification is sent to frame relay
equipment on other end of the PVC.
R
EACT TO
BECN
If BECN is received, traffic to the frame relay network is flowed off.
D
ROP
DE P
ACKETS WHEN OVERLOADED
If traffic congestion occurs, discard eligible (DE) packets drop.
F
RAGMENTATION
T
HRESHOLD
Defines the maximum data packet size that will be transmitted without
fragmenting the data to support voice. Table 8-1 on page 8-9 provides
suggested values based on the PVC CIR.
F
RAGMENTATION
S
IZE
Defines packet size when fragmentation is active.
DLCI S
TATE
Controls how the state of this DLCI is reported to any packet connec-
tions within the ATLAS 550 attempting to send or receive data on this
DLCI.
Table 8-1. Suggested Fragmentation Values Based on the PVC CIR
PVC
CIR
Frag
Size
Frag
Threshold
PVC
CIR
Frag
Size
Frag
Threshold
64 56 112 832 1016 2032
128 136 272 896 1096 2192
192 216 432 960 1176 2352
256 296 592 1024 1256 2512
320 376 752 1088 1336 2672
384 456 912 1152 1416 2832
448 536 1072 1216 1496 2992
512 616 1232 1280 1576 3152
576 696 1392 1344 1656 3312
640 776 1552 1408 1736 3472
704 856 1712 1472 1816 3632
768 936 1872 1536 1896 3792
