Nortel Remote Office 9150 Installation And Administration Manual page 417

March 2000
Determining if there is enough capacity
The following table arranges the calculations so that for each link, the available
link capacity can be compared against the additional Remote Office load. For
example, on the link between Router 4 and Router 5, there is plenty of available
capacity (492 Kbps) to accommodate the additional 24 Kbps of Remote Office
traffic.
Link capacity
Capacity (Kbps)
Utilization %
Threshold
Used
Available capacity
(Kbps)
Incremental Remote
Office load—site pair
Incremental Remote
Office load—traffic
(Kbps)
Some network management systems have network planning modules that
compute network flows in the manner just described. These modules provide
more detailed and accurate analysis as they can take into account actual node,
link, and routing information. They also help you assess network resilience by
conducting link and node failure analysis. By simulating failures, and reloading
network and recalculated routes, the modules indicate where the network might
be out of capacity during failures.
Installation and Administration Guide
Router 1 and
Router 2
1536
80
75
76.8
Santa Clara/Ottawa
Ottawa/Tokyo
21.2
Network engineering guidelines
End points
Router 1 and
Router 4
1536
80
50
460.8
Santa Clara/Tokyo
Santa Clara/
Richardson
Ottawa /Tokyo
31.4
Router 4 and
Router 5
1536
80
48
492
Santa Clara/
Richardson
Ottawa/Tokyo
Santa Clara/Tokyo
31.4
391