connection to NY2 64 Kbps. Companies have been known to make the redundant connection
0K CIR to save money. But when they lose their connection to the NY1 router, they can't move
data through NY2 due to congestion in the Frame Relay network, preventing their users from
getting to the server. Again, load sharing will probably happen here, depending on the routing
protocol.
probably ISDN. Most companies usually rely on the remote sites to call the central site, as
shown in Figure 10-24. NY is the central site in this case because the remote site has one PVC.
Notice that the hub site has two PVCs. If one of the PVCs at the hub site loses its connection,
the interface still receives and sends keepalive messages over the other PVC, which keeps the
interface up.