Bottleneck node
GenSyn
Tg6
GenSyn
Tg5
GenSyn
Tg2
GenSyn
Tg1
GenSyn
Tg9
GenSyn
Tg10
GenSyn
Tg7
GenSyn
Tg8
GenSyn
Tg4
GenSyn
Tg3
VoIP source
Figure 20 Bottleneck scenario – GenSyn
machines communicate to create congestion
on an edge router
a) Voice as best effort b) Voice with priority
Figure 21 Delay over time for voice traffic sent as (a) best effort, (b) with priority
a) Voice as best effort b) Voice with priority
Figure 22 Delay distribution for voice traffic sent as (a) best effort, (b) with priority