Expand Configuration and Management Manual (H06.21+, J06.10+)

Planning a Network Design
Expand Configuration and Management Manual — 529522-013
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When to Use a Multi-Line Path
varying speeds. For example, if the multi-line path contains both 9600 and 56K
byte lines, it is likely that frames traveling on the fast line are received at the
destination ahead of the frames traveling on the slower line. If many OOS packets
are received, the receiving node might require an OOS buffer space that is larger
than the default buffer size. When multipacket frames are used, this situation can
cause frames to be discarded at the destination if the maximum allowable OOS
window is exceeded. For these reasons, you should not configure a path with lines
that vary in speed by more than four to one.
Figure 3-1 illustrates a multi-line configuration with eight dedicated lines and two
ServerNet wide area network (SWAN) concentrators. Four lines are attached to each
SWAN concentrator.
Figure 3-1. Multi-Line Path With Eight Lines and Two SWAN Concentrators
VST025.vsd
$LINE1
$LINE2
$LINE3
$LINE4
$LINE5
$LINE6
$LINE7
$LINE8
$PATH1
SWAN
SWAN