28236-DSH-001-B_15 Datasheet, PDF (70/443 Pages) M/A-COM Technology Solutions, Inc. – ATM ServiceSAR Plus with xBR Traffic Management

3.0 Host Interface
3.2 Multiple Client Architecture
CN8236
ATM ServiceSAR Plus with xBR Traffic Management
3.2 Multiple Client Architecture
The CN8236 provides multiple independent control and status communication
paths. Each communication path, or flow, consists of a control queue and a status
queue for both segmentation and reassembly. The host assigns each of these
independent flows to system clients, or peers. As throughput requirements
escalate, the host system can add processing power in the form of additional
peers. This degree of freedom creates a scalable host environment. The CN8236
provides an ATM server for up to 32 clients. Figure 3-1 illustrates this
client/server relationship.
Figure 3-1. Client/Server Model of the CN8236
PCI Cards
PCI
Motherboard
Physical
Client
Physical
Client
Logical
Client
Logical
Client
(Up to 32
Clients)
CN8236 Subsystem
ATM Server
ATM
User-Network
Interface
PCI
Interface
LEGEND:
Host Data Path
Host Control/Status Flow
8236_010
3.2.1 Logical Clients
As shown in Figure 3-1, the clients do not need to be physically distinct PCI
peers. The host can also assign control and status queues to system software tasks,
or logical clients. Since the queues offer individually distinct communication
paths, each logical client interfaces to the CN8236 independently. Due to its
server architecture, the CN8236 supplies the synchronization between
asynchronous tasks requiring ATM services.
3-2
Mindspeed Technologies™
28236-DSH-001-B