The tree network topology integrates multiple star topologies together onto a bus.
Some Lotus Sametime Unified Telephony customers use tree topologies, for which multiple levels of bandwidth-limited links need to be considered. In this topology, multiple levels of bandwidth-limited links are present.
A main branch office (Branch 1 in the figure) might have a 1-Mbps access link to the backbone WAN with ten sub-branches connected to the main branch via 200 Kbps links. In this scenario, two levels of bandwidth-limited links must be considered: from the sub-branches to the main branch, and from the main branch to the WAN.
Figure 1. CAC (Call Admission Control) — tree network topology
Parent topic: CAC (Call Admission Control)