RS8234EBGC Mindspeed Technologies, RS8234EBGC Datasheet - Page 34

• Manufacturer Part Number: RS8234EBGC
• Description: RS8234EBGC ATM XBR SAR
• Manufacturer: Mindspeed Technologies

2.0 Architecture Overview
2.2 High Performance Host Architecture with Buffer Isolation
2.2.1 Multiple ATM Clients
2-2
2.2 High Performance Host Architecture with
Buffer Isolation
Once initialized and given a segmentation or reassembly task, the RS8234
operates autonomously. Because the RS8234 is a high performance subsystem,
the Host/ServiceSAR architecture and the algorithms for task submission and
status reporting have been optimized to minimize the control burden on the host
system.
The RS8234, functioning as an ATM UNI, provides a high throughput uplink to a
broadband network. Most individual ATM service users (or clients) do not have
the bandwidth requirements to equal the throughput capability of the RS8234. As
an application example, ATM clients may be Ethernet or Frame Relay ports.
Therefore, many service clients are typically aggregated onto one ATM UNI.
These clients may have very different needs and/or isolation requirements.
per-VCC Quality of Service (QoS) needs, the RS8234 functions as an ATM
server for up to 32 clients. In this way, the bandwidth requirements of the service
user (the client) can be balanced with the service throughput capability of the
RS8234 and the rest of the specific system.
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. These can be either physical or
logical entities. 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. Multiple VCCs may be assigned to each client.
In order to fully capitalize on the high bandwidth of this service while meeting
The RS8234 provides multiple independent control and status communication
Mindspeed Technologies
ATM ServiceSAR Plus with xBR Traffic Management
™
28234-DSH-001-B
RS8234