A XY Cartesian coordinate can be defined at each point of the backbone, as X(s) and Y(s), as the Y-axis is tangent to the backbone direction.
For each test, different weights were attached to the backbone tip.
plot shows the trajectories of a case with a different weight attached to the backbone tip, specified as [m.sub.tip].
the nodes belonging to the backbone
that leave the backbone and vice versa.
The announcement from an NSFNET client (either a mid-level or some other network connected to the backbone) reaches the NSS, which evaluates each incoming announcement, accepting those for configured nets that come from appropriate peers in an appropriate Administrative Domain (identified by its autonomous system number).
A network remains active as long as 1) connectivity exists to the destination and 2) the appropriate service provider(s) announces the network directly to the backbone.
This risks, however, attributing the traffic they impart to the backbone entry point.
And until recently, SAN implementers had no alternative to the Backbone Switch.
One thing is clear: The technology is based on existing industry standards, SAN switch providers are free to implement a Loop Switch product today as an attractive alternative to the backbone switch.
However, a seventime multi-homed infrastructure alone offers no significant advantage over a single connection other than redundancy, unless traffic is routed to the backbone
that owns the destination address.
Right now, the "ultimate" desktop solution is a switch that provides 10 Mbps switched connections to the desktop and one or more 100 Mbps connections to the backbone.
All communication originating at the clients is switched to the backbone and vice versa.
Yes: you can connect the clients directly to the backbone using a 100 Mbps hub.