ADTRAN Atlas 550 User Manual
Page 103
Chapter 8. Packet Manager
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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